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import glibc-2.34-100.el9

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i9c-beta changed/i9c-beta/glibc-2.34-100.el9
MSVSphere Packaging Team 8 months ago
parent 68c2a6d9d2
commit 188e092cba
61 changed files with 11521 additions and 1 deletions
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SOURCES/glibc-RHEL-1017-1.patch
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@ -0,0 +1,432 @@
From e4ca6de1bc5e4ba3f94cf0c501a293c5bc827b10 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@ozlabs.org>
Date: Tue, 27 Jul 2021 15:47:49 +1000
Subject: powerpc64: Replace some PPC_FEATURE_HAS_VSX with
PPC_FEATURE_ARCH_2_06
We use PPC_FEATURE_HAS_VSX to select a number of POWER7 optimised
functions. These functions don't use any VSX instructions, so
PPC_FEATURE_ARCH_2_06 seems like a better fit.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 0acdf22ba3..32564c8f1f 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -95,7 +95,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
#endif
IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07,
__memset_power8)
- IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_06,
__memset_power7)
IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
__memset_power6)
@@ -139,7 +139,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
#endif
IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strlen_power8)
- IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_ARCH_2_06,
__strlen_power7)
IFUNC_IMPL_ADD (array, i, strlen, 1,
__strlen_ppc))
@@ -152,7 +152,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
#endif
IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strncmp_power8)
- IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_ARCH_2_06,
__strncmp_power7)
IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
__strncmp_power4)
@@ -165,7 +165,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strchr_power8)
IFUNC_IMPL_ADD (array, i, strchr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strchr_power7)
IFUNC_IMPL_ADD (array, i, strchr, 1,
__strchr_ppc))
@@ -176,7 +176,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strchrnul_power8)
IFUNC_IMPL_ADD (array, i, strchrnul,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strchrnul_power7)
IFUNC_IMPL_ADD (array, i, strchrnul, 1,
__strchrnul_ppc))
@@ -192,7 +192,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
#endif
IFUNC_IMPL_ADD (array, i, memcmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
__memcmp_power8)
- IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_ARCH_2_06,
__memcmp_power7)
IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
__memcmp_power4)
@@ -244,7 +244,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__memchr_power8)
IFUNC_IMPL_ADD (array, i, memchr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__memchr_power7)
IFUNC_IMPL_ADD (array, i, memchr, 1,
__memchr_ppc))
@@ -255,7 +255,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__memrchr_power8)
IFUNC_IMPL_ADD (array, i, memrchr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__memrchr_power7)
IFUNC_IMPL_ADD (array, i, memrchr, 1,
__memrchr_ppc))
@@ -272,7 +272,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__rawmemchr_power9)
#endif
IFUNC_IMPL_ADD (array, i, rawmemchr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__rawmemchr_power7)
IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
__rawmemchr_ppc))
@@ -282,7 +282,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, strnlen,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strnlen_power8)
- IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_ARCH_2_06,
__strnlen_power7)
IFUNC_IMPL_ADD (array, i, strnlen, 1,
__strnlen_ppc))
@@ -293,14 +293,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strcasecmp_power8)
IFUNC_IMPL_ADD (array, i, strcasecmp,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strcasecmp_power7)
IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
/* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c. */
IFUNC_IMPL (i, name, strcasecmp_l,
IFUNC_IMPL_ADD (array, i, strcasecmp_l,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strcasecmp_l_power7)
IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
__strcasecmp_l_ppc))
@@ -311,14 +311,14 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strncasecmp_power8)
IFUNC_IMPL_ADD (array, i, strncasecmp,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strncasecmp_power7)
IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
/* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c. */
IFUNC_IMPL (i, name, strncasecmp_l,
IFUNC_IMPL_ADD (array, i, strncasecmp_l,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strncasecmp_l_power7)
IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
__strncasecmp_l_ppc))
@@ -329,7 +329,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strrchr_power8)
IFUNC_IMPL_ADD (array, i, strrchr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strrchr_power7)
IFUNC_IMPL_ADD (array, i, strrchr, 1,
__strrchr_ppc))
@@ -357,7 +357,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strncpy_power8)
IFUNC_IMPL_ADD (array, i, strncpy,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strncpy_power7)
IFUNC_IMPL_ADD (array, i, strncpy, 1,
__strncpy_ppc))
@@ -374,7 +374,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__stpncpy_power8)
IFUNC_IMPL_ADD (array, i, stpncpy,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__stpncpy_power7)
IFUNC_IMPL_ADD (array, i, stpncpy, 1,
__stpncpy_ppc))
@@ -390,7 +390,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
hwcap2 & PPC_FEATURE2_ARCH_2_07,
__strcmp_power8)
IFUNC_IMPL_ADD (array, i, strcmp,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strcmp_power7)
IFUNC_IMPL_ADD (array, i, strcmp, 1,
__strcmp_ppc))
@@ -425,7 +425,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strstr.c. */
IFUNC_IMPL (i, name, strstr,
IFUNC_IMPL_ADD (array, i, strstr,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06,
__strstr_power7)
IFUNC_IMPL_ADD (array, i, strstr, 1,
__strstr_ppc))
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memchr.c b/sysdeps/powerpc/powerpc64/multiarch/memchr.c
index 0c718d4f15..c24186689e 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memchr.c
@@ -30,7 +30,7 @@ extern __typeof (__memchr) __memchr_power8 attribute_hidden;
libc_ifunc (__memchr,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __memchr_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __memchr_power7
: __memchr_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memcmp.c b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
index 4fd089aba7..99559bce26 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
@@ -40,7 +40,7 @@ libc_ifunc_redirected (__redirect_memcmp, memcmp,
#endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __memcmp_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __memcmp_power7
: (hwcap & PPC_FEATURE_POWER4)
? __memcmp_power4
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memrchr.c b/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
index e06d6468b8..16bb6f0042 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
@@ -30,7 +30,7 @@ extern __typeof (__memrchr) __memrchr_power8 attribute_hidden;
libc_ifunc (__memrchr,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __memrchr_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __memrchr_power7
: __memrchr_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset.c b/sysdeps/powerpc/powerpc64/multiarch/memset.c
index 5994bf02e6..c1aa143f60 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memset.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset.c
@@ -48,7 +48,7 @@ libc_ifunc (__libc_memset,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __memset_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __memset_power7 :
(hwcap & PPC_FEATURE_ARCH_2_05)
? __memset_power6 :
diff --git a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
index c0ffea2b93..b5d2d3a635 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
@@ -41,7 +41,7 @@ libc_ifunc_redirected (__redirect___rawmemchr, __rawmemchr,
(hwcap2 & PPC_FEATURE2_ARCH_3_00)
? __rawmemchr_power9 :
# endif
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __rawmemchr_power7
: __rawmemchr_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpncpy.c b/sysdeps/powerpc/powerpc64/multiarch/stpncpy.c
index bebd377fd9..e7035761a7 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/stpncpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpncpy.c
@@ -40,7 +40,7 @@ libc_ifunc_redirected (__redirect___stpncpy, __stpncpy,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __stpncpy_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06)
? __stpncpy_power7
: __stpncpy_ppc);
weak_alias (__stpncpy, stpncpy)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
index dcd7774403..55ca6c85c4 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
@@ -29,7 +29,7 @@ extern __typeof (__strcasecmp) __strcasecmp_power8 attribute_hidden;
libc_ifunc (__libc_strcasecmp,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strcasecmp_power8:
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strcasecmp_power7
: __strcasecmp_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c
index 96a70b8b11..1afee5d7fd 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c
@@ -32,7 +32,7 @@ extern __typeof (__strcasecmp_l) __strcasecmp_l_power7 attribute_hidden;
extern __typeof (__strcasecmp_l) __libc_strcasecmp_l;
libc_ifunc (__libc_strcasecmp_l,
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strcasecmp_l_power7
: __strcasecmp_l_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strchr.c b/sysdeps/powerpc/powerpc64/multiarch/strchr.c
index ea9ac1134f..27c794c6b7 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strchr.c
@@ -35,7 +35,7 @@ extern __typeof (strchr) __strchr_power8 attribute_hidden;
libc_ifunc_redirected (__redirect_strchr, strchr,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strchr_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strchr_power7
: __strchr_ppc);
weak_alias (strchr, index)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c b/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
index 4688e7c3f0..4a07b4a242 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
@@ -30,7 +30,7 @@ extern __typeof (__strchrnul) __strchrnul_power8 attribute_hidden;
libc_ifunc (__strchrnul,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strchrnul_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strchrnul_power7
: __strchrnul_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
index 72f9a639bf..4b0b25fff6 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
@@ -40,7 +40,7 @@ libc_ifunc_redirected (__redirect_strcmp, strcmp,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strcmp_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06)
? __strcmp_power7
: __strcmp_ppc);
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strlen.c b/sysdeps/powerpc/powerpc64/multiarch/strlen.c
index 109c8a90bd..0cd1c6faff 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strlen.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strlen.c
@@ -42,7 +42,7 @@ libc_ifunc (__libc_strlen,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strlen_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strlen_power7
: __strlen_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase.c b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
index 2013a5d75a..644046bd74 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncase.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
@@ -29,7 +29,7 @@ extern __typeof (__strncasecmp) __strncasecmp_power8 attribute_hidden;
libc_ifunc (__libc_strncasecmp,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strncasecmp_power8:
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strncasecmp_power7
: __strncasecmp_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c b/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c
index cad6da302d..d2d761af72 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase_l.c
@@ -34,7 +34,7 @@ extern __typeof (__strncasecmp_l) __strncasecmp_l_power7 attribute_hidden;
ifunc symbol properly. */
extern __typeof (__strncasecmp_l) __libc_strncasecmp_l;
libc_ifunc (__libc_strncasecmp_l,
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strncasecmp_l_power7
: __strncasecmp_l_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
index eef524ddfb..1f689e5c05 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
@@ -43,7 +43,7 @@ libc_ifunc_redirected (__redirect_strncmp, strncmp,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strncmp_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06)
? __strncmp_power7
: (hwcap & PPC_FEATURE_POWER4)
? __strncmp_power4
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncpy.c b/sysdeps/powerpc/powerpc64/multiarch/strncpy.c
index 7da9def358..d4d3463bd1 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncpy.c
@@ -43,7 +43,7 @@ libc_ifunc_redirected (__redirect_strncpy, strncpy,
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strncpy_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06)
? __strncpy_power7
: __strncpy_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
index 264b7a752d..baf375a75a 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
@@ -31,7 +31,7 @@ extern __typeof (__strnlen) __strnlen_power8 attribute_hidden;
libc_ifunc_redirected (__redirect___strnlen, __strnlen,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strnlen_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strnlen_power7
: __strnlen_ppc);
weak_alias (__strnlen, strnlen)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strrchr.c b/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
index bb06b93d19..1c9eea1817 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
@@ -33,7 +33,7 @@ extern __typeof (strrchr) __strrchr_power8 attribute_hidden;
libc_ifunc_redirected (__redirect_strrchr, strrchr,
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
? __strrchr_power8 :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strrchr_power7
: __strrchr_ppc);
weak_alias (strrchr, rindex)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strstr.c b/sysdeps/powerpc/powerpc64/multiarch/strstr.c
index bb0588844e..6582798dda 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strstr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strstr.c
@@ -30,7 +30,7 @@ extern __typeof (strstr) __strstr_power7 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc_redirected (__redirect_strstr, strstr,
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06)
? __strstr_power7
: __strstr_ppc);
#endif

83
SOURCES/glibc-RHEL-1017-2.patch
Unescape View File

@ -0,0 +1,83 @@
From f2a15dd668913c5a1388ba7e1131b25162b2ea75 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@ozlabs.org>
Date: Tue, 27 Jul 2021 15:47:50 +1000
Subject: powerpc64: Check cacheline size before using optimised memset
routines
A number of optimised memset routines assume the cacheline size is 128B,
so we better check before using them.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index 32564c8f1f..a3fdcd43bd 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -35,6 +35,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
unsigned long int hwcap = GLRO(dl_hwcap);
unsigned long int hwcap2 = GLRO(dl_hwcap2);
+#ifdef SHARED
+ int cacheline_size = GLRO(dl_cache_line_size);
+#endif
/* hwcap contains only the latest supported ISA, the code checks which is
and fills the previous supported ones. */
@@ -90,16 +93,21 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memset,
hwcap2 & PPC_FEATURE2_ARCH_3_1
&& hwcap2 & PPC_FEATURE2_HAS_ISEL
- && hwcap & PPC_FEATURE_HAS_VSX,
+ && hwcap & PPC_FEATURE_HAS_VSX
+ && cacheline_size == 128,
__memset_power10)
#endif
- IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && cacheline_size == 128,
__memset_power8)
- IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_06,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_06
+ && cacheline_size == 128,
__memset_power7)
- IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05
+ && cacheline_size == 128,
__memset_power6)
- IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
+ IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4
+ && cacheline_size == 128,
__memset_power4)
IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset.c b/sysdeps/powerpc/powerpc64/multiarch/memset.c
index c1aa143f60..056e911699 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memset.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset.c
@@ -43,16 +43,21 @@ libc_ifunc (__libc_memset,
# ifdef __LITTLE_ENDIAN__
(hwcap2 & PPC_FEATURE2_ARCH_3_1
&& hwcap2 & PPC_FEATURE2_HAS_ISEL
- && hwcap & PPC_FEATURE_HAS_VSX)
+ && hwcap & PPC_FEATURE_HAS_VSX
+ && GLRO(dl_cache_line_size) == 128)
? __memset_power10 :
# endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && GLRO(dl_cache_line_size) == 128)
? __memset_power8 :
- (hwcap & PPC_FEATURE_ARCH_2_06)
+ (hwcap & PPC_FEATURE_ARCH_2_06
+ && GLRO(dl_cache_line_size) == 128)
? __memset_power7 :
- (hwcap & PPC_FEATURE_ARCH_2_05)
+ (hwcap & PPC_FEATURE_ARCH_2_05
+ && GLRO(dl_cache_line_size) == 128)
? __memset_power6 :
- (hwcap & PPC_FEATURE_POWER4)
+ (hwcap & PPC_FEATURE_POWER4
+ && GLRO(dl_cache_line_size) == 128)
? __memset_power4
: __memset_ppc);

703
SOURCES/glibc-RHEL-1017-3.patch
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@ -0,0 +1,703 @@
From 60b4dd25790342b40e8942e3a4115f511a6b6911 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@ozlabs.org>
Date: Tue, 27 Jul 2021 15:47:51 +1000
Subject: powerpc64: Add checks for Altivec and VSX in ifunc selection
We'd like to support processors without Altivec or VSX, so check
the relevant hwcap bits before selecting them.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
diff --git a/sysdeps/powerpc/powerpc64/multiarch/bzero.c b/sysdeps/powerpc/powerpc64/multiarch/bzero.c
index 660d7dc686..c8ffbea01c 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/bzero.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/bzero.c
@@ -38,11 +38,13 @@ libc_ifunc (__bzero,
&& hwcap & PPC_FEATURE_HAS_VSX)
? __bzero_power10 :
# endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __bzero_power8 :
(hwcap & PPC_FEATURE_HAS_VSX)
? __bzero_power7 :
- (hwcap & PPC_FEATURE_ARCH_2_05)
+ (hwcap & PPC_FEATURE_ARCH_2_05
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __bzero_power6 :
(hwcap & PPC_FEATURE_POWER4)
? __bzero_power4
diff --git a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
index a3fdcd43bd..c3e25c5981 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
@@ -60,9 +60,11 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
&& hwcap & PPC_FEATURE_HAS_VSX,
__memcpy_power10)
#endif
- IFUNC_IMPL_ADD (array, i, memcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, memcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memcpy_power8_cached)
- IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memcpy_power7)
IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
__memcpy_a2)
@@ -83,7 +85,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
&& hwcap & PPC_FEATURE_HAS_VSX,
__memmove_power10)
#endif
- IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memmove_power7)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
@@ -98,6 +101,7 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memset_power10)
#endif
IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC
&& cacheline_size == 128,
__memset_power8)
IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_06
@@ -114,12 +118,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcpy.c. */
IFUNC_IMPL (i, name, strcpy,
#ifdef __LITTLE_ENDIAN__
- IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strcpy_power9)
#endif
- IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strcpy_power8)
- IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strcpy_power7)
IFUNC_IMPL_ADD (array, i, strcpy, 1,
__strcpy_ppc))
@@ -127,12 +134,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/stpcpy.c. */
IFUNC_IMPL (i, name, stpcpy,
#ifdef __LITTLE_ENDIAN__
- IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX,
__stpcpy_power9)
#endif
- IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__stpcpy_power8)
- IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_HAS_VSX,
+ IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX,
__stpcpy_power7)
IFUNC_IMPL_ADD (array, i, stpcpy, 1,
__stpcpy_ppc))
@@ -140,12 +150,15 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c. */
IFUNC_IMPL (i, name, strlen,
#ifdef __LITTLE_ENDIAN__
- IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_1,
+ IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_1
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strlen_power10)
- IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strlen_power9)
#endif
- IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strlen_power8)
IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_ARCH_2_06,
__strlen_power7)
@@ -155,7 +168,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c. */
IFUNC_IMPL (i, name, strncmp,
#ifdef __LITTLE_ENDIAN__
- IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strncmp_power9)
#endif
IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
@@ -170,7 +184,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c. */
IFUNC_IMPL (i, name, strchr,
IFUNC_IMPL_ADD (array, i, strchr,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strchr_power8)
IFUNC_IMPL_ADD (array, i, strchr,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -181,7 +196,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c. */
IFUNC_IMPL (i, name, strchrnul,
IFUNC_IMPL_ADD (array, i, strchrnul,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strchrnul_power8)
IFUNC_IMPL_ADD (array, i, strchrnul,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -198,7 +214,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
&& hwcap & PPC_FEATURE_HAS_VSX,
__memcmp_power10)
#endif
- IFUNC_IMPL_ADD (array, i, memcmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, memcmp, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memcmp_power8)
IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_ARCH_2_06,
__memcmp_power7)
@@ -215,11 +232,13 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
&& hwcap & PPC_FEATURE_HAS_VSX,
__bzero_power10)
#endif
- IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__bzero_power8)
IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
__bzero_power7)
- IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
+ IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__bzero_power6)
IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
__bzero_power4)
@@ -241,7 +260,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c. */
IFUNC_IMPL (i, name, mempcpy,
IFUNC_IMPL_ADD (array, i, mempcpy,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__mempcpy_power7)
IFUNC_IMPL_ADD (array, i, mempcpy, 1,
__mempcpy_ppc))
@@ -249,7 +269,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c. */
IFUNC_IMPL (i, name, memchr,
IFUNC_IMPL_ADD (array, i, memchr,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memchr_power8)
IFUNC_IMPL_ADD (array, i, memchr,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -260,7 +281,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c. */
IFUNC_IMPL (i, name, memrchr,
IFUNC_IMPL_ADD (array, i, memrchr,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__memrchr_power8)
IFUNC_IMPL_ADD (array, i, memrchr,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -276,7 +298,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
&& (hwcap & PPC_FEATURE_HAS_VSX),
__rawmemchr_power10)
IFUNC_IMPL_ADD (array, i, rawmemchr,
- hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX,
__rawmemchr_power9)
#endif
IFUNC_IMPL_ADD (array, i, rawmemchr,
@@ -288,7 +311,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c. */
IFUNC_IMPL (i, name, strnlen,
IFUNC_IMPL_ADD (array, i, strnlen,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strnlen_power8)
IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_ARCH_2_06,
__strnlen_power7)
@@ -298,7 +322,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c. */
IFUNC_IMPL (i, name, strcasecmp,
IFUNC_IMPL_ADD (array, i, strcasecmp,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strcasecmp_power8)
IFUNC_IMPL_ADD (array, i, strcasecmp,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -316,7 +341,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c. */
IFUNC_IMPL (i, name, strncasecmp,
IFUNC_IMPL_ADD (array, i, strncasecmp,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strncasecmp_power8)
IFUNC_IMPL_ADD (array, i, strncasecmp,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -334,7 +360,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c. */
IFUNC_IMPL (i, name, strrchr,
IFUNC_IMPL_ADD (array, i, strrchr,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strrchr_power8)
IFUNC_IMPL_ADD (array, i, strrchr,
hwcap & PPC_FEATURE_ARCH_2_06,
@@ -345,10 +372,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c. */
IFUNC_IMPL (i, name, strncat,
IFUNC_IMPL_ADD (array, i, strncat,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strncat_power8)
IFUNC_IMPL_ADD (array, i, strncat,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strncat_power7)
IFUNC_IMPL_ADD (array, i, strncat, 1,
__strncat_ppc))
@@ -391,7 +420,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL (i, name, strcmp,
#ifdef __LITTLE_ENDIAN__
IFUNC_IMPL_ADD (array, i, strcmp,
- hwcap2 & PPC_FEATURE2_ARCH_3_00,
+ hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strcmp_power9)
#endif
IFUNC_IMPL_ADD (array, i, strcmp,
@@ -406,10 +436,12 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c. */
IFUNC_IMPL (i, name, strcat,
IFUNC_IMPL_ADD (array, i, strcat,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strcat_power8)
IFUNC_IMPL_ADD (array, i, strcat,
- hwcap & PPC_FEATURE_HAS_VSX,
+ hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strcat_power7)
IFUNC_IMPL_ADD (array, i, strcat, 1,
__strcat_ppc))
@@ -417,7 +449,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strspn.c. */
IFUNC_IMPL (i, name, strspn,
IFUNC_IMPL_ADD (array, i, strspn,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strspn_power8)
IFUNC_IMPL_ADD (array, i, strspn, 1,
__strspn_ppc))
@@ -425,7 +458,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcspn.c. */
IFUNC_IMPL (i, name, strcspn,
IFUNC_IMPL_ADD (array, i, strcspn,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX,
__strcspn_power8)
IFUNC_IMPL_ADD (array, i, strcspn, 1,
__strcspn_ppc))
@@ -442,7 +476,8 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
/* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c. */
IFUNC_IMPL (i, name, strcasestr,
IFUNC_IMPL_ADD (array, i, strcasestr,
- hwcap2 & PPC_FEATURE2_ARCH_2_07,
+ hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC,
__strcasestr_power8)
IFUNC_IMPL_ADD (array, i, strcasestr, 1,
__strcasestr_ppc))
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memchr.c b/sysdeps/powerpc/powerpc64/multiarch/memchr.c
index c24186689e..f40013e061 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memchr.c
@@ -28,7 +28,8 @@ extern __typeof (__memchr) __memchr_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__memchr,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __memchr_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __memchr_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memcmp.c b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
index 99559bce26..89b56c103b 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcmp.c
@@ -38,7 +38,8 @@ libc_ifunc_redirected (__redirect_memcmp, memcmp,
&& hwcap & PPC_FEATURE_HAS_VSX)
? __memcmp_power10 :
#endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __memcmp_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __memcmp_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memcpy.c b/sysdeps/powerpc/powerpc64/multiarch/memcpy.c
index 53ab32ef26..684ee064f2 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memcpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memcpy.c
@@ -45,9 +45,12 @@ libc_ifunc (__libc_memcpy,
(hwcap2 & PPC_FEATURE2_ARCH_3_1 && hwcap & PPC_FEATURE_HAS_VSX)
? __memcpy_power10 :
# endif
- ((hwcap2 & PPC_FEATURE2_ARCH_2_07) && use_cached_memopt)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC
+ && use_cached_memopt)
? __memcpy_power8_cached :
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __memcpy_power7 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __memcpy_a2 :
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memmove.c b/sysdeps/powerpc/powerpc64/multiarch/memmove.c
index 637b2cbf7f..50253b4554 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memmove.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memmove.c
@@ -41,7 +41,8 @@ libc_ifunc (__libc_memmove,
&& hwcap & PPC_FEATURE_HAS_VSX)
? __memmove_power10 :
#endif
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __memmove_power7
: __memmove_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
index b37e0f35b5..563095a5ec 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/mempcpy.c
@@ -33,7 +33,8 @@ extern __typeof (__mempcpy) __mempcpy_power7 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc_redirected (__redirect___mempcpy, __mempcpy,
- (hwcap & PPC_FEATURE_HAS_VSX)
+ (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __mempcpy_power7
: __mempcpy_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memrchr.c b/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
index 16bb6f0042..a8b985b06a 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memrchr.c
@@ -28,7 +28,8 @@ extern __typeof (__memrchr) __memrchr_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__memrchr,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __memrchr_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __memrchr_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset.c b/sysdeps/powerpc/powerpc64/multiarch/memset.c
index 056e911699..a2bc223bcc 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memset.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset.c
@@ -48,6 +48,7 @@ libc_ifunc (__libc_memset,
? __memset_power10 :
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC
&& GLRO(dl_cache_line_size) == 128)
? __memset_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06
diff --git a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
index b5d2d3a635..43eb459e02 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c
@@ -38,7 +38,8 @@ libc_ifunc_redirected (__redirect___rawmemchr, __rawmemchr,
(hwcap2 & PPC_FEATURE2_ARCH_3_1)
&& (hwcap & PPC_FEATURE_HAS_VSX)
? __rawmemchr_power10 :
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __rawmemchr_power9 :
# endif
(hwcap & PPC_FEATURE_ARCH_2_06)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
index d4eb4285fc..5be413405e 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy.c
@@ -32,12 +32,15 @@ extern __typeof (__stpcpy) __stpcpy_power9 attribute_hidden;
libc_ifunc_hidden (__stpcpy, __stpcpy,
# ifdef __LITTLE_ENDIAN__
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __stpcpy_power9 :
# endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __stpcpy_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __stpcpy_power7
: __stpcpy_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
index 55ca6c85c4..21ce2d279b 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c
@@ -27,7 +27,8 @@ extern __typeof (__strcasecmp) __strcasecmp_power7 attribute_hidden;
extern __typeof (__strcasecmp) __strcasecmp_power8 attribute_hidden;
libc_ifunc (__libc_strcasecmp,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strcasecmp_power8:
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strcasecmp_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c b/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c
index 7e4bd3b5ac..5bb3016022 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcasestr.c
@@ -27,7 +27,8 @@ extern __typeof (__strcasestr) __strcasestr_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__strcasestr,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strcasestr_power8
: __strcasestr_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcat.c b/sysdeps/powerpc/powerpc64/multiarch/strcat.c
index 6d342324c4..d8d9870824 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcat.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcat.c
@@ -28,9 +28,11 @@ extern __typeof (strcat) __strcat_power8 attribute_hidden;
# undef strcat
libc_ifunc_redirected (__redirect_strcat, strcat,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strcat_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strcat_power7
: __strcat_ppc);
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strchr.c b/sysdeps/powerpc/powerpc64/multiarch/strchr.c
index 27c794c6b7..62b202baf9 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strchr.c
@@ -33,7 +33,8 @@ extern __typeof (strchr) __strchr_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc_redirected (__redirect_strchr, strchr,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strchr_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strchr_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c b/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
index 4a07b4a242..40e529b9d9 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strchrnul.c
@@ -28,7 +28,8 @@ extern __typeof (__strchrnul) __strchrnul_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc (__strchrnul,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strchrnul_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strchrnul_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
index 4b0b25fff6..8132682a99 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcmp.c
@@ -35,7 +35,8 @@ extern __typeof (strcmp) __strcmp_power9 attribute_hidden;
libc_ifunc_redirected (__redirect_strcmp, strcmp,
# ifdef __LITTLE_ENDIAN__
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strcmp_power9 :
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy.c b/sysdeps/powerpc/powerpc64/multiarch/strcpy.c
index b733fa5a23..5af1d45cc1 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcpy.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy.c
@@ -32,12 +32,15 @@ extern __typeof (strcpy) __strcpy_power9 attribute_hidden;
libc_ifunc_redirected (__redirect_strcpy, strcpy,
# ifdef __LITTLE_ENDIAN__
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strcpy_power9 :
# endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strcpy_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strcpy_power7
: __strcpy_ppc);
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcspn.c b/sysdeps/powerpc/powerpc64/multiarch/strcspn.c
index 683aa104d7..8ba01c13b1 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcspn.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcspn.c
@@ -27,7 +27,8 @@ extern __typeof (strcspn) __strcspn_ppc attribute_hidden;
extern __typeof (strcspn) __strcspn_power8 attribute_hidden;
libc_ifunc (__libc_strcspn,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strcspn_power8
: __strcspn_ppc);
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strlen.c b/sysdeps/powerpc/powerpc64/multiarch/strlen.c
index 0cd1c6faff..f1e28414e0 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strlen.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strlen.c
@@ -35,12 +35,15 @@ extern __typeof (__redirect_strlen) __strlen_power10 attribute_hidden;
libc_ifunc (__libc_strlen,
# ifdef __LITTLE_ENDIAN__
- (hwcap2 & PPC_FEATURE2_ARCH_3_1)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_1
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strlen_power10 :
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strlen_power9 :
# endif
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strlen_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strlen_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncase.c b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
index 644046bd74..2802cf2c3f 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncase.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncase.c
@@ -27,7 +27,8 @@ extern __typeof (__strncasecmp) __strncasecmp_power7 attribute_hidden;
extern __typeof (__strncasecmp) __strncasecmp_power8 attribute_hidden;
libc_ifunc (__libc_strncasecmp,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strncasecmp_power8:
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strncasecmp_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncat.c b/sysdeps/powerpc/powerpc64/multiarch/strncat.c
index 0036fca91a..9ea294a72d 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncat.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncat.c
@@ -26,9 +26,11 @@ extern __typeof (strncat) __strncat_power7 attribute_hidden;
extern __typeof (strncat) __strncat_power8 attribute_hidden;
libc_ifunc (strncat,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strncat_power8
- : (hwcap & PPC_FEATURE_HAS_VSX)
+ : (hwcap & PPC_FEATURE_ARCH_2_06
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strncat_power7
: __strncat_ppc);
#endif
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
index 1f689e5c05..2d21122854 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncmp.c
@@ -38,7 +38,8 @@ extern __typeof (strncmp) __strncmp_power9 attribute_hidden;
ifunc symbol properly. */
libc_ifunc_redirected (__redirect_strncmp, strncmp,
# ifdef __LITTLE_ENDIAN__
- (hwcap2 & PPC_FEATURE2_ARCH_3_00)
+ (hwcap2 & PPC_FEATURE2_ARCH_3_00
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strncmp_power9 :
# endif
(hwcap2 & PPC_FEATURE2_ARCH_2_07)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
index baf375a75a..e68e9d9f88 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strnlen.c
@@ -29,7 +29,8 @@ extern __typeof (__strnlen) __strnlen_power8 attribute_hidden;
# undef strnlen
# undef __strnlen
libc_ifunc_redirected (__redirect___strnlen, __strnlen,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strnlen_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strnlen_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strrchr.c b/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
index 1c9eea1817..7f0cf2a1b7 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strrchr.c
@@ -31,7 +31,8 @@ extern __typeof (strrchr) __strrchr_power8 attribute_hidden;
/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
ifunc symbol properly. */
libc_ifunc_redirected (__redirect_strrchr, strrchr,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_ALTIVEC)
? __strrchr_power8 :
(hwcap & PPC_FEATURE_ARCH_2_06)
? __strrchr_power7
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strspn.c b/sysdeps/powerpc/powerpc64/multiarch/strspn.c
index 70167a176b..7613ab3d55 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strspn.c
+++ b/sysdeps/powerpc/powerpc64/multiarch/strspn.c
@@ -27,7 +27,8 @@ extern __typeof (strspn) __strspn_ppc attribute_hidden;
extern __typeof (strspn) __strspn_power8 attribute_hidden;
libc_ifunc (__libc_strspn,
- (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ (hwcap2 & PPC_FEATURE2_ARCH_2_07
+ && hwcap & PPC_FEATURE_HAS_VSX)
? __strspn_power8
: __strspn_ppc);

652
SOURCES/glibc-RHEL-1017-4.patch
Unescape View File

@ -0,0 +1,652 @@
From 21841f0d562f0e944c4d267a28cc3ebd19c847e9 Mon Sep 17 00:00:00 2001
From: Mahesh Bodapati <bmahi496@linux.ibm.com>
Date: Tue, 1 Aug 2023 07:41:17 -0500
Subject: PowerPC: Influence cpu/arch hwcap features via GLIBC_TUNABLES
This patch enables the option to influence hwcaps used by PowerPC.
The environment variable, GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,-zzz....,
can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature xxx
and zzz, where the feature name is case-sensitive and has to match the ones
mentioned in the file{sysdeps/powerpc/dl-procinfo.c}.
Note that the hwcap tunables only used in the IFUNC selection.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
[rebased to c9s by DJ]
diff -rupN a/manual/tunables.texi b/manual/tunables.texi
--- a/manual/tunables.texi 2023-09-13 01:16:19.979884270 -0400
+++ b/manual/tunables.texi 2023-09-13 01:17:19.217179994 -0400
@@ -476,7 +476,10 @@ On s390x, the supported HWCAP and STFLE
@code{sysdeps/s390/cpu-features.c}. In addition the user can also set
a CPU arch-level like @code{z13} instead of single HWCAP and STFLE features.
-This tunable is specific to i386, x86-64 and s390x.
+On powerpc, the supported HWCAP and HWCAP2 features can be found in
+@code{sysdeps/powerpc/dl-procinfo.c}.
+
+This tunable is specific to i386, x86-64, s390x and powerpc.
@end deftp
@deftp Tunable glibc.cpu.cached_memopt
diff -rupN a/sysdeps/powerpc/cpu-features.c b/sysdeps/powerpc/cpu-features.c
--- a/sysdeps/powerpc/cpu-features.c 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/cpu-features.c 1969-12-31 19:00:00.000000000 -0500
@@ -1,39 +0,0 @@
-/* Initialize cpu feature data. PowerPC version.
- Copyright (C) 2017-2021 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
-
-#include <stdint.h>
-#include <cpu-features.h>
-
-#if HAVE_TUNABLES
-# include <elf/dl-tunables.h>
-#endif
-
-static inline void
-init_cpu_features (struct cpu_features *cpu_features)
-{
- /* Default is to use aligned memory access on optimized function unless
- tunables is enable, since for this case user can explicit disable
- unaligned optimizations. */
-#if HAVE_TUNABLES
- int32_t cached_memfunc = TUNABLE_GET (glibc, cpu, cached_memopt, int32_t,
- NULL);
- cpu_features->use_cached_memopt = (cached_memfunc > 0);
-#else
- cpu_features->use_cached_memopt = false;
-#endif
-}
diff -rupN a/sysdeps/powerpc/cpu-features.h b/sysdeps/powerpc/cpu-features.h
--- a/sysdeps/powerpc/cpu-features.h 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/cpu-features.h 1969-12-31 19:00:00.000000000 -0500
@@ -1,28 +0,0 @@
-/* Initialize cpu feature data. PowerPC version.
- Copyright (C) 2017-2021 Free Software Foundation, Inc.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
-
-#ifndef __CPU_FEATURES_POWERPC_H
-# define __CPU_FEATURES_POWERPC_H
-
-#include <stdbool.h>
-
-struct cpu_features
-{
- bool use_cached_memopt;
-};
-
-#endif /* __CPU_FEATURES_H */
diff -rupN a/sysdeps/powerpc/dl-tunables.list b/sysdeps/powerpc/dl-tunables.list
--- a/sysdeps/powerpc/dl-tunables.list 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/dl-tunables.list 2023-09-13 01:17:19.226180343 -0400
@@ -24,5 +24,8 @@ glibc {
maxval: 1
default: 0
}
+ hwcaps {
+ type: STRING
+ }
}
}
diff -rupN a/sysdeps/powerpc/hwcapinfo.c b/sysdeps/powerpc/hwcapinfo.c
--- a/sysdeps/powerpc/hwcapinfo.c 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/hwcapinfo.c 2023-09-13 01:17:19.229180459 -0400
@@ -19,6 +19,7 @@
#include <unistd.h>
#include <shlib-compat.h>
#include <dl-procinfo.h>
+#include <cpu-features.c>
uint64_t __tcb_hwcap __attribute__ ((visibility ("hidden")));
uint32_t __tcb_platform __attribute__ ((visibility ("hidden")));
@@ -64,6 +65,9 @@ __tcb_parse_hwcap_and_convert_at_platfor
else if (h1 & PPC_FEATURE_POWER5)
h1 |= PPC_FEATURE_POWER4;
+ uint64_t array_hwcaps[] = { h1, h2 };
+ init_cpu_features (&GLRO(dl_powerpc_cpu_features), array_hwcaps);
+
/* Consolidate both HWCAP and HWCAP2 into a single doubleword so that
we can read both in a single load later. */
__tcb_hwcap = h2;
diff -rupN a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c 2023-09-13 01:17:19.232180575 -0400
@@ -21,6 +21,7 @@
#include <wchar.h>
#include <ldsodefs.h>
#include <ifunc-impl-list.h>
+#include <cpu-features.h>
/* Maximum number of IFUNC implementations. */
#define MAX_IFUNC 6
@@ -33,7 +34,8 @@ __libc_ifunc_impl_list (const char *name
size_t i = 0;
- unsigned long int hwcap = GLRO(dl_hwcap);
+ const struct cpu_features *features = &GLRO(dl_powerpc_cpu_features);
+ unsigned long int hwcap = features->hwcap;
/* hwcap contains only the latest supported ISA, the code checks which is
and fills the previous supported ones. */
if (hwcap & PPC_FEATURE_ARCH_2_06)
diff -rupN a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h 2023-09-13 01:17:19.232180575 -0400
@@ -16,6 +16,7 @@
<https://www.gnu.org/licenses/>. */
#include <ldsodefs.h>
+#include <cpu-features.h>
/* The code checks if _rtld_global_ro was realocated before trying to access
the dl_hwcap field. The assembly is to make the compiler not optimize the
@@ -32,11 +33,12 @@
# define __GLRO(value) GLRO(value)
#endif
-/* dl_hwcap contains only the latest supported ISA, the macro checks which is
- and fills the previous ones. */
+/* Get the hardware information post the tunables set, the macro checks
+ it and fills the previous ones. */
#define INIT_ARCH() \
- unsigned long int hwcap = __GLRO(dl_hwcap); \
- unsigned long int __attribute__((unused)) hwcap2 = __GLRO(dl_hwcap2); \
+ const struct cpu_features *features = &GLRO(dl_powerpc_cpu_features); \
+ unsigned long int hwcap = features->hwcap; \
+ unsigned long int __attribute__((unused)) hwcap2 = features->hwcap2; \
bool __attribute__((unused)) use_cached_memopt = \
__GLRO(dl_powerpc_cpu_features.use_cached_memopt); \
if (hwcap & PPC_FEATURE_ARCH_2_06) \
diff -rupN a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h
--- a/sysdeps/powerpc/powerpc64/dl-machine.h 2023-09-13 01:16:17.582791395 -0400
+++ b/sysdeps/powerpc/powerpc64/dl-machine.h 2023-09-13 01:17:19.236180730 -0400
@@ -27,7 +27,6 @@
#include <dl-tls.h>
#include <sysdep.h>
#include <hwcapinfo.h>
-#include <cpu-features.c>
#include <dl-static-tls.h>
#include <dl-funcdesc.h>
#include <dl-machine-rel.h>
@@ -293,7 +292,6 @@ static inline void __attribute__ ((unuse
dl_platform_init (void)
{
__tcb_parse_hwcap_and_convert_at_platform ();
- init_cpu_features (&GLRO(dl_powerpc_cpu_features));
}
#endif
diff -rupN a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
--- a/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c 2023-09-13 01:16:20.219893569 -0400
+++ b/sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c 2023-09-13 01:19:17.169756083 -0400
@@ -17,6 +17,7 @@
<https://www.gnu.org/licenses/>. */
#include <assert.h>
+#include <cpu-features.h>
#include <string.h>
#include <wchar.h>
#include <ldsodefs.h>
@@ -32,9 +33,9 @@ __libc_ifunc_impl_list (const char *name
assert (max >= MAX_IFUNC);
size_t i = 0;
-
- unsigned long int hwcap = GLRO(dl_hwcap);
- unsigned long int hwcap2 = GLRO(dl_hwcap2);
+ const struct cpu_features *features = &GLRO(dl_powerpc_cpu_features);
+ unsigned long int hwcap = features->hwcap;
+ unsigned long int hwcap2 = features->hwcap2;
#ifdef SHARED
int cacheline_size = GLRO(dl_cache_line_size);
#endif
diff -rupN a/sysdeps/unix/sysv/linux/powerpc/Makefile b/sysdeps/unix/sysv/linux/powerpc/Makefile
--- a/sysdeps/unix/sysv/linux/powerpc/Makefile 2021-08-01 21:33:43.000000000 -0400
+++ b/sysdeps/unix/sysv/linux/powerpc/Makefile 2023-09-13 01:17:19.243181002 -0400
@@ -21,7 +21,12 @@ ifeq ($(subdir),misc)
sysdep_headers += bits/ppc.h
sysdep_routines += get_timebase_freq
tests-static += test-gettimebasefreq-static
-tests += $(tests-static)
-tests += test-gettimebasefreq
-tests += test-powerpc-linux-sysconf
+tests += \
+ $(tests-static) \
+ test-gettimebasefreq \
+ test-powerpc-linux-sysconf \
+ tst-hwcap-tunables \
+ # tests
+
+tst-hwcap-tunables-ARGS = -- $(host-test-program-cmd)
endif
diff -rupN a/sysdeps/unix/sysv/linux/powerpc/cpu-features.c b/sysdeps/unix/sysv/linux/powerpc/cpu-features.c
--- a/sysdeps/unix/sysv/linux/powerpc/cpu-features.c 1969-12-31 19:00:00.000000000 -0500
+++ b/sysdeps/unix/sysv/linux/powerpc/cpu-features.c 2023-09-13 01:17:19.247181157 -0400
@@ -0,0 +1,124 @@
+/* Initialize cpu feature data. PowerPC version.
+ Copyright (C) 2017-2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <array_length.h>
+#include <stdint.h>
+#include <cpu-features.h>
+#include <elf/dl-tunables.h>
+#include <unistd.h>
+#include <string.h>
+
+static void
+TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *valp)
+{
+ /* The current IFUNC selection is always using the most recent
+ features which are available via AT_HWCAP or AT_HWCAP2. But in
+ some scenarios it is useful to adjust this selection.
+
+ The environment variable:
+
+ GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,....
+
+ Can be used to enable HWCAP/HWCAP2 feature yyy, disable HWCAP/HWCAP2
+ feature xxx, where the feature name is case-sensitive and has to match
+ the ones mentioned in the file{sysdeps/powerpc/dl-procinfo.c}. */
+
+ /* Copy the features from dl_powerpc_cpu_features, which contains the
+ features provided by AT_HWCAP and AT_HWCAP2. */
+ struct cpu_features *cpu_features = &GLRO(dl_powerpc_cpu_features);
+ unsigned long int tcbv_hwcap = cpu_features->hwcap;
+ unsigned long int tcbv_hwcap2 = cpu_features->hwcap2;
+ const char *token = valp->strval;
+ do
+ {
+ const char *token_end, *feature;
+ bool disable;
+ size_t token_len, i, feature_len, offset = 0;
+ /* Find token separator or end of string. */
+ for (token_end = token; *token_end != ','; token_end++)
+ if (*token_end == '\0')
+ break;
+
+ /* Determine feature. */
+ token_len = token_end - token;
+ if (*token == '-')
+ {
+ disable = true;
+ feature = token + 1;
+ feature_len = token_len - 1;
+ }
+ else
+ {
+ disable = false;
+ feature = token;
+ feature_len = token_len;
+ }
+ for (i = 0; i < array_length (hwcap_tunables); ++i)
+ {
+ const char *hwcap_name = hwcap_names + offset;
+ size_t hwcap_name_len = strlen (hwcap_name);
+ /* Check the tunable name on the supported list. */
+ if (hwcap_name_len == feature_len
+ && memcmp (feature, hwcap_name, feature_len) == 0)
+ {
+ /* Update the hwcap and hwcap2 bits. */
+ if (disable)
+ {
+ /* Id is 1 for hwcap2 tunable. */
+ if (hwcap_tunables[i].id)
+ cpu_features->hwcap2 &= ~(hwcap_tunables[i].mask);
+ else
+ cpu_features->hwcap &= ~(hwcap_tunables[i].mask);
+ }
+ else
+ {
+ /* Enable the features and also check that no unsupported
+ features were enabled by user. */
+ if (hwcap_tunables[i].id)
+ cpu_features->hwcap2 |= (tcbv_hwcap2 & hwcap_tunables[i].mask);
+ else
+ cpu_features->hwcap |= (tcbv_hwcap & hwcap_tunables[i].mask);
+ }
+ break;
+ }
+ offset += hwcap_name_len + 1;
+ }
+ token += token_len;
+ /* ... and skip token separator for next round. */
+ if (*token == ',')
+ token++;
+ }
+ while (*token != '\0');
+}
+
+static inline void
+init_cpu_features (struct cpu_features *cpu_features, uint64_t hwcaps[])
+{
+ /* Fill the cpu_features with the supported hwcaps
+ which are set by __tcb_parse_hwcap_and_convert_at_platform. */
+ cpu_features->hwcap = hwcaps[0];
+ cpu_features->hwcap2 = hwcaps[1];
+ /* Default is to use aligned memory access on optimized function unless
+ tunables is enable, since for this case user can explicit disable
+ unaligned optimizations. */
+ int32_t cached_memfunc = TUNABLE_GET (glibc, cpu, cached_memopt, int32_t,
+ NULL);
+ cpu_features->use_cached_memopt = (cached_memfunc > 0);
+ TUNABLE_GET (glibc, cpu, hwcaps, tunable_val_t *,
+ TUNABLE_CALLBACK (set_hwcaps));
+}
diff -rupN a/sysdeps/unix/sysv/linux/powerpc/cpu-features.h b/sysdeps/unix/sysv/linux/powerpc/cpu-features.h
--- a/sysdeps/unix/sysv/linux/powerpc/cpu-features.h 1969-12-31 19:00:00.000000000 -0500
+++ b/sysdeps/unix/sysv/linux/powerpc/cpu-features.h 2023-09-13 01:17:19.251181312 -0400
@@ -0,0 +1,130 @@
+/* Initialize cpu feature data. PowerPC version.
+ Copyright (C) 2017-2023 Free Software Foundation, Inc.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef __CPU_FEATURES_POWERPC_H
+# define __CPU_FEATURES_POWERPC_H
+
+#include <stdbool.h>
+#include <sys/auxv.h>
+
+struct cpu_features
+{
+ bool use_cached_memopt;
+ unsigned long int hwcap;
+ unsigned long int hwcap2;
+};
+
+static const char hwcap_names[] = {
+ "4xxmac\0"
+ "altivec\0"
+ "arch_2_05\0"
+ "arch_2_06\0"
+ "archpmu\0"
+ "booke\0"
+ "cellbe\0"
+ "dfp\0"
+ "efpdouble\0"
+ "efpsingle\0"
+ "fpu\0"
+ "ic_snoop\0"
+ "mmu\0"
+ "notb\0"
+ "pa6t\0"
+ "power4\0"
+ "power5\0"
+ "power5+\0"
+ "power6x\0"
+ "ppc32\0"
+ "ppc601\0"
+ "ppc64\0"
+ "ppcle\0"
+ "smt\0"
+ "spe\0"
+ "true_le\0"
+ "ucache\0"
+ "vsx\0"
+ "arch_2_07\0"
+ "dscr\0"
+ "ebb\0"
+ "htm\0"
+ "htm-nosc\0"
+ "htm-no-suspend\0"
+ "isel\0"
+ "tar\0"
+ "vcrypto\0"
+ "arch_3_00\0"
+ "ieee128\0"
+ "darn\0"
+ "scv\0"
+ "arch_3_1\0"
+ "mma\0"
+};
+
+static const struct
+{
+ unsigned int mask;
+ bool id;
+} hwcap_tunables[] = {
+ /* AT_HWCAP tunable masks. */
+ { PPC_FEATURE_HAS_4xxMAC, 0 },
+ { PPC_FEATURE_HAS_ALTIVEC, 0 },
+ { PPC_FEATURE_ARCH_2_05, 0 },
+ { PPC_FEATURE_ARCH_2_06, 0 },
+ { PPC_FEATURE_PSERIES_PERFMON_COMPAT, 0 },
+ { PPC_FEATURE_BOOKE, 0 },
+ { PPC_FEATURE_CELL_BE, 0 },
+ { PPC_FEATURE_HAS_DFP, 0 },
+ { PPC_FEATURE_HAS_EFP_DOUBLE, 0 },
+ { PPC_FEATURE_HAS_EFP_SINGLE, 0 },
+ { PPC_FEATURE_HAS_FPU, 0 },
+ { PPC_FEATURE_ICACHE_SNOOP, 0 },
+ { PPC_FEATURE_HAS_MMU, 0 },
+ { PPC_FEATURE_NO_TB, 0 },
+ { PPC_FEATURE_PA6T, 0 },
+ { PPC_FEATURE_POWER4, 0 },
+ { PPC_FEATURE_POWER5, 0 },
+ { PPC_FEATURE_POWER5_PLUS, 0 },
+ { PPC_FEATURE_POWER6_EXT, 0 },
+ { PPC_FEATURE_32, 0 },
+ { PPC_FEATURE_601_INSTR, 0 },
+ { PPC_FEATURE_64, 0 },
+ { PPC_FEATURE_PPC_LE, 0 },
+ { PPC_FEATURE_SMT, 0 },
+ { PPC_FEATURE_HAS_SPE, 0 },
+ { PPC_FEATURE_TRUE_LE, 0 },
+ { PPC_FEATURE_UNIFIED_CACHE, 0 },
+ { PPC_FEATURE_HAS_VSX, 0 },
+
+ /* AT_HWCAP2 tunable masks. */
+ { PPC_FEATURE2_ARCH_2_07, 1 },
+ { PPC_FEATURE2_HAS_DSCR, 1 },
+ { PPC_FEATURE2_HAS_EBB, 1 },
+ { PPC_FEATURE2_HAS_HTM, 1 },
+ { PPC_FEATURE2_HTM_NOSC, 1 },
+ { PPC_FEATURE2_HTM_NO_SUSPEND, 1 },
+ { PPC_FEATURE2_HAS_ISEL, 1 },
+ { PPC_FEATURE2_HAS_TAR, 1 },
+ { PPC_FEATURE2_HAS_VEC_CRYPTO, 1 },
+ { PPC_FEATURE2_ARCH_3_00, 1 },
+ { PPC_FEATURE2_HAS_IEEE128, 1 },
+ { PPC_FEATURE2_DARN, 1 },
+ { PPC_FEATURE2_SCV, 1 },
+ { PPC_FEATURE2_ARCH_3_1, 1 },
+ { PPC_FEATURE2_MMA, 1 },
+};
+
+#endif /* __CPU_FEATURES_H */
diff -rupN a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list 2023-09-13 01:16:19.989884657 -0400
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/dl-tunables.list 2023-09-13 01:17:19.254181428 -0400
@@ -28,3 +28,4 @@
@order glibc.malloc.check
@order glibc.gmon.minarcs
@order glibc.gmon.maxarcs
+@order glibc.cpu.hwcaps
diff -rupN a/sysdeps/unix/sysv/linux/powerpc/tst-hwcap-tunables.c b/sysdeps/unix/sysv/linux/powerpc/tst-hwcap-tunables.c
--- a/sysdeps/unix/sysv/linux/powerpc/tst-hwcap-tunables.c 1969-12-31 19:00:00.000000000 -0500
+++ b/sysdeps/unix/sysv/linux/powerpc/tst-hwcap-tunables.c 2023-09-13 01:17:19.258181583 -0400
@@ -0,0 +1,128 @@
+/* Tests for powerpc GLIBC_TUNABLES=glibc.cpu.hwcaps filter.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <array_length.h>
+#include <getopt.h>
+#include <ifunc-impl-list.h>
+#include <spawn.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <support/check.h>
+#include <support/support.h>
+#include <support/xunistd.h>
+#include <sys/auxv.h>
+#include <sys/wait.h>
+
+/* Nonzero if the program gets called via `exec'. */
+#define CMDLINE_OPTIONS \
+ { "restart", no_argument, &restart, 1 },
+static int restart;
+
+/* Hold the four initial argument used to respawn the process, plus the extra
+ '--direct', '--restart', and the function to check */
+static char *spargs[8];
+static int fc;
+
+/* Called on process re-execution. */
+_Noreturn static void
+handle_restart (int argc, char *argv[])
+{
+ TEST_VERIFY_EXIT (argc == 1);
+ const char *funcname = argv[0];
+
+ struct libc_ifunc_impl impls[32];
+ int cnt = __libc_ifunc_impl_list ("memcpy", impls, array_length (impls));
+ if (cnt == 0)
+ _exit (EXIT_SUCCESS);
+ TEST_VERIFY_EXIT (cnt >= 1);
+ for (int i = 0; i < cnt; i++) {
+ if (strcmp (impls[i].name, funcname) == 0)
+ {
+ TEST_COMPARE (impls[i].usable, false);
+ break;
+ }
+ }
+
+ _exit (EXIT_SUCCESS);
+}
+
+static void
+run_test (const char *filter, const char *funcname)
+{
+ printf ("info: checking filter %s (expect %s ifunc selection to be removed)\n",
+ filter, funcname);
+ char *tunable = xasprintf ("GLIBC_TUNABLES=glibc.cpu.hwcaps=%s", filter);
+ char *const newenvs[] = { (char*) tunable, NULL };
+ spargs[fc] = (char *) funcname;
+
+ pid_t pid;
+ TEST_COMPARE (posix_spawn (&pid, spargs[0], NULL, NULL, spargs, newenvs), 0);
+ int status;
+ TEST_COMPARE (xwaitpid (pid, &status, 0), pid);
+ TEST_VERIFY (WIFEXITED (status));
+ TEST_VERIFY (!WIFSIGNALED (status));
+ TEST_COMPARE (WEXITSTATUS (status), 0);
+
+ free (tunable);
+}
+
+static int
+do_test (int argc, char *argv[])
+{
+ if (restart)
+ handle_restart (argc - 1, &argv[1]);
+
+ TEST_VERIFY_EXIT (argc == 2 || argc == 5);
+
+ int i;
+ for (i = 0; i < argc - 1; i++)
+ spargs[i] = argv[i + 1];
+ spargs[i++] = (char *) "--direct";
+ spargs[i++] = (char *) "--restart";
+ fc = i++;
+ spargs[i] = NULL;
+
+ unsigned long int hwcap = getauxval (AT_HWCAP);
+ unsigned long int hwcap2 = getauxval (AT_HWCAP2);
+ if (__WORDSIZE == 64)
+ {
+ if (hwcap2 & PPC_FEATURE2_ARCH_3_1)
+ run_test ("-arch_3_1", "__memcpy_power10");
+ if (hwcap2 & PPC_FEATURE2_ARCH_2_07)
+ run_test ("-arch_2_07", "__memcpy_power8_cached");
+ if (hwcap & PPC_FEATURE_ARCH_2_06)
+ run_test ("-arch_2_06", "__memcpy_power7");
+ if (hwcap & PPC_FEATURE_ARCH_2_05)
+ run_test ("-arch_2_06,-arch_2_05","__memcpy_power6");
+ run_test ("-arch_2_06,-arch_2_05,-power5+,-power5,-power4", "__memcpy_power4");
+ }
+ else
+ {
+ if (hwcap & PPC_FEATURE_HAS_VSX)
+ run_test ("-vsx", "__memcpy_power7");
+ if (hwcap & PPC_FEATURE_ARCH_2_06)
+ run_test ("-arch_2_06", "__memcpy_a2");
+ if (hwcap & PPC_FEATURE_ARCH_2_05)
+ run_test ("-arch_2_05", "__memcpy_power6");
+ }
+ return 0;
+}
+
+#define TEST_FUNCTION_ARGV do_test
+#include <support/test-driver.c>

69
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commit 1493622f4f9048ffede3fbedb64695efa49d662a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Aug 28 12:08:14 2023 -0700
x86: Check the lower byte of EAX of CPUID leaf 2 [BZ #30643]
The old Intel software developer manual specified that the low byte of
EAX of CPUID leaf 2 returned 1 which indicated the number of rounds of
CPUDID leaf 2 was needed to retrieve the complete cache information. The
newer Intel manual has been changed to that it should always return 1
and be ignored. If the lower byte isn't 1, CPUID leaf 2 can't be used.
In this case, we ignore CPUID leaf 2 and use CPUID leaf 4 instead. If
CPUID leaf 4 doesn't contain the cache information, cache information
isn't available at all. This addresses BZ #30643.
diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h
index f950e488cfbe42dd..bd2f2b65f78056ca 100644
--- a/sysdeps/x86/dl-cacheinfo.h
+++ b/sysdeps/x86/dl-cacheinfo.h
@@ -187,7 +187,7 @@ intel_check_word (int name, unsigned int value, bool *has_level_2,
++round;
}
/* There is no other cache information anywhere else. */
- break;
+ return -1;
}
else
{
@@ -257,28 +257,23 @@ handle_intel (int name, const struct cpu_features *cpu_features)
/* OK, we can use the CPUID instruction to get all info about the
caches. */
- unsigned int cnt = 0;
- unsigned int max = 1;
long int result = 0;
bool no_level_2_or_3 = false;
bool has_level_2 = false;
+ unsigned int eax;
+ unsigned int ebx;
+ unsigned int ecx;
+ unsigned int edx;
+ __cpuid (2, eax, ebx, ecx, edx);
- while (cnt++ < max)
+ /* The low byte of EAX of CPUID leaf 2 should always return 1 and it
+ should be ignored. If it isn't 1, use CPUID leaf 4 instead. */
+ if ((eax & 0xff) != 1)
+ return intel_check_word (name, 0xff, &has_level_2, &no_level_2_or_3,
+ cpu_features);
+ else
{
- unsigned int eax;
- unsigned int ebx;
- unsigned int ecx;
- unsigned int edx;
- __cpuid (2, eax, ebx, ecx, edx);
-
- /* The low byte of EAX in the first round contain the number of
- rounds we have to make. At least one, the one we are already
- doing. */
- if (cnt == 1)
- {
- max = eax & 0xff;
- eax &= 0xffffff00;
- }
+ eax &= 0xffffff00;
/* Process the individual registers' value. */
result = intel_check_word (name, eax, &has_level_2,

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SOURCES/glibc-RHEL-14383-1.patch
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commit 2aa0974d2573441bffd596b07bff8698b1f2f18c
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Oct 20 14:29:50 2023 +0200
elf: ldconfig should skip temporary files created by package managers
This avoids crashes due to partially written files, after a package
update is interrupted.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Conflicts:
elf/ldconfig.c
(missing alloca removal downstream)
diff --git a/elf/ldconfig.c b/elf/ldconfig.c
index be47ad8c2d7f89f3..f0c811001965cc46 100644
--- a/elf/ldconfig.c
+++ b/elf/ldconfig.c
@@ -778,6 +778,31 @@ struct dlib_entry
struct dlib_entry *next;
};
+/* Skip some temporary DSO files. These files may be partially written
+ and lead to ldconfig crashes when examined. */
+static bool
+skip_dso_based_on_name (const char *name, size_t len)
+{
+ /* Skip temporary files created by the prelink program. Files with
+ names like these are never really DSOs we want to look at. */
+ if (len >= sizeof (".#prelink#") - 1)
+ {
+ if (strcmp (name + len - sizeof (".#prelink#") + 1,
+ ".#prelink#") == 0)
+ return true;
+ if (len >= sizeof (".#prelink#.XXXXXX") - 1
+ && memcmp (name + len - sizeof (".#prelink#.XXXXXX")
+ + 1, ".#prelink#.", sizeof (".#prelink#.") - 1) == 0)
+ return true;
+ }
+ /* Skip temporary files created by RPM. */
+ if (memchr (name, len, ';') != NULL)
+ return true;
+ /* Skip temporary files created by dpkg. */
+ if (len > 4 && memcmp (name + len - 4, ".tmp", 4) == 0)
+ return true;
+ return false;
+}
static void
search_dir (const struct dir_entry *entry)
@@ -854,18 +879,8 @@ search_dir (const struct dir_entry *entry)
continue;
size_t len = strlen (direntry->d_name);
- /* Skip temporary files created by the prelink program. Files with
- names like these are never really DSOs we want to look at. */
- if (len >= sizeof (".#prelink#") - 1)
- {
- if (strcmp (direntry->d_name + len - sizeof (".#prelink#") + 1,
- ".#prelink#") == 0)
- continue;
- if (len >= sizeof (".#prelink#.XXXXXX") - 1
- && memcmp (direntry->d_name + len - sizeof (".#prelink#.XXXXXX")
- + 1, ".#prelink#.", sizeof (".#prelink#.") - 1) == 0)
- continue;
- }
+ if (skip_dso_based_on_name (direntry->d_name, len))
+ continue;
len += strlen (entry->path) + 2;
if (len > file_name_len)
{

61
SOURCES/glibc-RHEL-14383-2.patch
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commit cfb5a97a93ea656e3b2263e42142a4032986d9ba
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Oct 23 12:53:16 2023 +0200
ldconfig: Fixes for skipping temporary files.
Arguments to a memchr call were swapped, causing incorrect skipping
of files.
Files related to dpkg have different names: they actually end in
.dpkg-new and .dpkg-tmp, not .tmp as I mistakenly assumed.
Fixes commit 2aa0974d2573441bffd59 ("elf: ldconfig should skip
temporary files created by package managers").
diff --git a/elf/ldconfig.c b/elf/ldconfig.c
index f0c811001965cc46..4a96c409994d96c8 100644
--- a/elf/ldconfig.c
+++ b/elf/ldconfig.c
@@ -778,6 +778,17 @@ struct dlib_entry
struct dlib_entry *next;
};
+/* Return true if the N bytes at NAME end with with the characters in
+ the string SUFFIX. (NAME[N + 1] does not have to be a null byte.)
+ Expected to be called with a string literal for SUFFIX. */
+static inline bool
+endswithn (const char *name, size_t n, const char *suffix)
+{
+ return (n >= strlen (suffix)
+ && memcmp (name + n - strlen (suffix), suffix,
+ strlen (suffix)) == 0);
+}
+
/* Skip some temporary DSO files. These files may be partially written
and lead to ldconfig crashes when examined. */
static bool
@@ -787,8 +798,7 @@ skip_dso_based_on_name (const char *name, size_t len)
names like these are never really DSOs we want to look at. */
if (len >= sizeof (".#prelink#") - 1)
{
- if (strcmp (name + len - sizeof (".#prelink#") + 1,
- ".#prelink#") == 0)
+ if (endswithn (name, len, ".#prelink#"))
return true;
if (len >= sizeof (".#prelink#.XXXXXX") - 1
&& memcmp (name + len - sizeof (".#prelink#.XXXXXX")
@@ -796,10 +806,11 @@ skip_dso_based_on_name (const char *name, size_t len)
return true;
}
/* Skip temporary files created by RPM. */
- if (memchr (name, len, ';') != NULL)
+ if (memchr (name, ';', len) != NULL)
return true;
/* Skip temporary files created by dpkg. */
- if (len > 4 && memcmp (name + len - 4, ".tmp", 4) == 0)
+ if (endswithn (name, len, ".dpkg-new")
+ || endswithn (name, len, ".dpkg-tmp"))
return true;
return false;
}

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SOURCES/glibc-RHEL-15343-1.patch
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commit 1626d8a521c7c771d4118b1328421fea113cab64
Author: Joe Simmons-Talbott <josimmon@redhat.com>
Date: Fri Apr 21 09:24:22 2023 -0400
string: Allow use of test-string.h for non-ifunc implementations.
Mark two variables as unused to silence warning when using
test-string.h for non-ifunc implementations.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
diff --git a/string/test-string.h b/string/test-string.h
index 41de973479..8bcb8afd0a 100644
--- a/string/test-string.h
+++ b/string/test-string.h
@@ -130,8 +130,8 @@ cmdline_process_function (int c)
/* Increase size of FUNC_LIST if assert is triggered at run-time. */
static struct libc_ifunc_impl func_list[32];
static int func_count;
-static int impl_count = -1;
-static impl_t *impl_array;
+static int impl_count __attribute__ ((unused)) = -1;
+static impl_t *impl_array __attribute__ ((unused));
# define FOR_EACH_IMPL(impl, notall) \
impl_t *impl; \

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commit eaaad78db41724e5a18a42becb238bfc4e683998
Author: Joe Simmons-Talbott <josimmon@redhat.com>
Date: Fri Apr 21 09:24:23 2023 -0400
string: Add tests for strdup (BZ #30266)
Copy strcpy tests for strdup. Covers some basic testcases with random
strings. Add a zero-length string testcase.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Conflicts:
string/Makefile
(different test backport order)
diff -Nrup a/string/Makefile b/string/Makefile
--- a/string/Makefile 2023-11-30 10:59:16.400251685 -0500
+++ b/string/Makefile 2023-11-30 11:16:42.829613344 -0500
@@ -63,7 +63,8 @@ tests := tester inl-tester noinl-tester
tst-strtok_r bug-strcoll2 tst-cmp tst-xbzero-opt \
test-endian-types test-endian-file-scope \
test-endian-sign-conversion tst-memmove-overflow \
- test-sig_np tst-strerror-fail
+ test-sig_np tst-strerror-fail \
+ test-strdup
# Both tests require the .mo translation files generated by msgfmt.
tests-translation := tst-strsignal \
diff -Nrup a/string/test-strdup.c b/string/test-strdup.c
--- a/string/test-strdup.c 1969-12-31 19:00:00.000000000 -0500
+++ b/string/test-strdup.c 2023-11-30 11:11:32.850447614 -0500
@@ -0,0 +1,201 @@
+/* Test and measure strdup functions.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+
+#ifdef WIDE
+# include <wchar.h>
+# define CHAR wchar_t
+# define sfmt "ls"
+# define BIG_CHAR WCHAR_MAX
+# define SMALL_CHAR 1273
+# define STRCMP wcscmp
+# define MEMCMP wmemcmp
+# define MEMSET wmemset
+# define TCS TEST_COMPARE_STRING_WIDE
+#else
+# define CHAR char
+# define sfmt "s"
+# define BIG_CHAR CHAR_MAX
+# define SMALL_CHAR 127
+# define STRCMP strcmp
+# define MEMCMP memcmp
+# define MEMSET memset
+# define TCS TEST_COMPARE_STRING
+#endif
+
+#ifndef STRDUP_RESULT
+# define STRDUP_RESULT(dst, len) dst
+# define TEST_MAIN
+# ifndef WIDE
+# define TEST_NAME "strdup"
+# else
+# define TEST_NAME "wcsdup"
+# endif
+# include "test-string.h"
+# ifndef WIDE
+# define STRDUP strdup
+# else
+# define STRDUP wcsdup
+# endif
+#endif
+
+typedef CHAR *(*proto_t) (const CHAR *);
+
+static void
+do_zero_len_test (void)
+{
+ CHAR src[1] = { '\0' };
+ CHAR *dst = STRDUP (src);
+
+ TCS (dst, src);
+ free (dst);
+}
+
+static void
+do_one_test (const CHAR *src,
+ size_t len __attribute__((unused)))
+{
+ CHAR *dst = STRDUP (src);
+
+ if (STRCMP (dst, src) != 0)
+ {
+ error (0, 0,
+ "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
+ TEST_NAME, dst, src);
+ ret = 1;
+ free (dst);
+ return;
+ }
+ free (dst);
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, int max_char)
+{
+ size_t i;
+ CHAR *s1;
+/* For wcsdup: align1 and align2 here mean alignment not in bytes,
+ but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
+ len for wcschr here isn't in bytes but it's number of wchar_t symbols. */
+ align1 &= 7;
+ if ((align1 + len) * sizeof (CHAR) >= page_size)
+ return;
+
+ align2 &= 7;
+ if ((align2 + len) * sizeof (CHAR) >= page_size)
+ return;
+
+ s1 = (CHAR *) (buf1) + align1;
+
+ for (i = 0; i < len; i++)
+ s1[i] = 32 + 23 * i % (max_char - 32);
+ s1[len] = 0;
+
+ do_one_test (s1, len);
+}
+
+static void
+do_random_tests (void)
+{
+ size_t i, j, n, align1, align2, len;
+ CHAR *p1 = (CHAR *)(buf1 + page_size) - 512;
+ CHAR *res;
+
+ for (n = 0; n < ITERATIONS; n++)
+ {
+ /* align1 and align2 are expressed as wchar_t and not in bytes for wide
+ char test, and thus it will be equal to align times wchar_t size.
+
+ For non wide version we need to check all alignments from 0 to 63
+ since some assembly implementations have separate prolog for alignments
+ more 48. */
+
+ align1 = random () & (63 / sizeof (CHAR));
+ if (random () & 1)
+ align2 = random () & (63 / sizeof (CHAR));
+ else
+ align2 = align1 + (random () & 24);
+ len = random () & 511;
+ j = align1;
+ if (align2 > j)
+ j = align2;
+ if (len + j >= 511)
+ len = 510 - j - (random () & 7);
+ j = len + align1 + 64;
+ if (j > 512)
+ j = 512;
+ for (i = 0; i < j; i++)
+ {
+ if (i == len + align1)
+ p1[i] = 0;
+ else
+ {
+ p1[i] = random () & BIG_CHAR;
+ if (i >= align1 && i < len + align1 && !p1[i])
+ p1[i] = (random () & SMALL_CHAR) + 3;
+ }
+ }
+
+ res = STRDUP(p1 + align1);
+ TCS (res, (p1 + align1));
+ free (res);
+ }
+}
+
+
+int
+test_main (void)
+{
+ size_t i;
+
+ test_init ();
+
+ printf ("%23s", "");
+ printf ("\t%s", TEST_NAME);
+ putchar ('\n');
+
+ for (i = 0; i < 16; ++i)
+ {
+ do_test (0, 0, i, SMALL_CHAR);
+ do_test (0, 0, i, BIG_CHAR);
+ do_test (0, i, i, SMALL_CHAR);
+ do_test (i, 0, i, BIG_CHAR);
+ }
+
+ for (i = 1; i < 8; ++i)
+ {
+ do_test (0, 0, 8 << i, SMALL_CHAR);
+ do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
+ }
+
+ for (i = 1; i < 8; ++i)
+ {
+ do_test (i, 2 * i, 8 << i, SMALL_CHAR);
+ do_test (2 * i, i, 8 << i, BIG_CHAR);
+ do_test (i, i, 8 << i, SMALL_CHAR);
+ do_test (i, i, 8 << i, BIG_CHAR);
+ }
+
+ do_zero_len_test ();
+ do_random_tests ();
+
+ return ret;
+}
+
+#include <support/test-driver.c>

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commit 0c48aa0551151ea201f7f528492e89a0b08a6890
Author: Joe Simmons-Talbott <josimmon@redhat.com>
Date: Fri Apr 21 09:24:24 2023 -0400
string: Add tests for strndup (BZ #30266)
Copy strncpy tests for strndup. Covers some basic testcases with random
strings. Remove tests that set the destination's bytes and checked the
resulting buffer's bytes. Remove wide character test support since
wcsndup() doesn't exist.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Conflicts:
string/Makefile
(different test backport order)
diff -Nrup a/string/Makefile b/string/Makefile
--- a/string/Makefile 2023-11-30 11:55:02.263010916 -0500
+++ b/string/Makefile 2023-11-30 11:58:29.238954539 -0500
@@ -64,7 +64,7 @@ tests := tester inl-tester noinl-tester
test-endian-types test-endian-file-scope \
test-endian-sign-conversion tst-memmove-overflow \
test-sig_np tst-strerror-fail \
- test-strdup
+ test-strdup test-strndup
# Both tests require the .mo translation files generated by msgfmt.
tests-translation := tst-strsignal \
diff -Nrup a/string/test-strndup.c b/string/test-strndup.c
--- a/string/test-strndup.c 1969-12-31 19:00:00.000000000 -0500
+++ b/string/test-strndup.c 2023-11-30 11:56:24.986388053 -0500
@@ -0,0 +1,200 @@
+/* Test strndup functions.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <support/check.h>
+
+#define TEST_MAIN
+#include "test-string.h"
+
+static void
+do_one_test (const char *src, size_t len, size_t n)
+{
+ char *dst = strndup (src, n);
+ size_t s = (len > n ? n: len) * sizeof (char);
+
+ TEST_COMPARE_BLOB (dst, s, src, s);
+
+ free (dst);
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char)
+{
+ size_t i;
+ char *s1;
+
+ align1 &= 7;
+ if ((align1 + len) * sizeof (char) >= page_size)
+ return;
+
+ align2 &= 7;
+ if ((align2 + len) * sizeof (char) >= page_size)
+ return;
+
+ s1 = (char *) (buf1) + align1;
+
+ for (i = 0; i < len; ++i)
+ s1[i] = 32 + 23 * i % (max_char - 32);
+ s1[len] = 0;
+ for (i = len + 1; (i + align1) * sizeof (char) < page_size && i < len + 64;
+ ++i)
+ s1[i] = 32 + 32 * i % (max_char - 32);
+
+ do_one_test (s1, len, n);
+}
+
+static void
+do_page_tests (void)
+{
+ char *s1;
+ const size_t maxoffset = 64;
+
+ /* Put s1 at the maxoffset from the edge of buf1's last page. */
+ s1 = (char *) buf1 + BUF1PAGES * page_size / sizeof (char) - maxoffset;
+
+ memset (s1, 'a', maxoffset - 1);
+ s1[maxoffset - 1] = '\0';
+
+ /* Both strings are bounded to a page with read/write access and the next
+ page is protected with PROT_NONE (meaning that any access outside of the
+ page regions will trigger an invalid memory access).
+
+ The loop copies the string s1 for all possible offsets up to maxoffset
+ for both inputs with a size larger than s1 (so memory access outside the
+ expected memory regions might trigger invalid access). */
+
+ for (size_t off1 = 0; off1 < maxoffset; off1++)
+ for (size_t off2 = 0; off2 < maxoffset; off2++)
+ do_one_test (s1 + off1, maxoffset - off1 - 1,
+ maxoffset + (maxoffset - off2));
+}
+
+static void
+do_random_tests (void)
+{
+ size_t i, j, n, align1, align2, len, size, mode;
+ char *p1 = (char *) (buf1 + page_size) - 512;
+ char *res;
+
+ for (n = 0; n < ITERATIONS; n++)
+ {
+ mode = random ();
+ if (mode & 1)
+ {
+ size = random () & 255;
+ align1 = 512 - size - (random () & 15);
+ if (mode & 2)
+ align2 = align1 - (random () & 24);
+ else
+ align2 = align1 - (random () & 31);
+ if (mode & 4)
+ {
+ j = align1;
+ align1 = align2;
+ align2 = j;
+ }
+ if (mode & 8)
+ len = size - (random () & 31);
+ else
+ len = 512;
+ if (len >= 512)
+ len = random () & 511;
+ }
+ else
+ {
+ align1 = random () & 31;
+ if (mode & 2)
+ align2 = random () & 31;
+ else
+ align2 = align1 + (random () & 24);
+ len = random () & 511;
+ j = align1;
+ if (align2 > j)
+ j = align2;
+ if (mode & 4)
+ {
+ size = random () & 511;
+ if (size + j > 512)
+ size = 512 - j - (random () & 31);
+ }
+ else
+ size = 512 - j;
+ if ((mode & 8) && len + j >= 512)
+ len = 512 - j - (random () & 7);
+ }
+ j = len + align1 + 64;
+ if (j > 512)
+ j = 512;
+ for (i = 0; i < j; i++)
+ {
+ if (i == len + align1)
+ p1[i] = 0;
+ else
+ {
+ p1[i] = random () & CHAR_MAX;
+ if (i >= align1 && i < len + align1 && !p1[i])
+ p1[i] = (random () & 127) + 3;
+ }
+ }
+
+ res = (char *) strndup ((char *) (p1 + align1), size);
+ j = len + 1;
+ if (size < j)
+ j = size;
+ TEST_COMPARE_BLOB (res, j, (char *) (p1 + align1), j);
+ free (res);
+ }
+}
+
+int
+test_main (void)
+{
+ size_t i;
+
+ test_init ();
+
+ printf ("%28s", "");
+ printf ("\t%s", "strndup");
+ putchar ('\n');
+
+ for (i = 1; i < 8; ++i)
+ {
+ do_test (i, i, 16, 16, 127);
+ do_test (i, i, 16, 16, CHAR_MAX);
+ do_test (i, 2 * i, 16, 16, 127);
+ do_test (2 * i, i, 16, 16, CHAR_MAX);
+ do_test (8 - i, 2 * i, 1 << i, 2 << i, 127);
+ do_test (2 * i, 8 - i, 2 << i, 1 << i, 127);
+ do_test (8 - i, 2 * i, 1 << i, 2 << i, CHAR_MAX);
+ do_test (2 * i, 8 - i, 2 << i, 1 << i, CHAR_MAX);
+ }
+
+ for (i = 1; i < 8; ++i)
+ {
+ do_test (0, 0, 4 << i, 8 << i, 127);
+ do_test (0, 0, 16 << i, 8 << i, 127);
+ do_test (8 - i, 2 * i, 4 << i, 8 << i, 127);
+ do_test (8 - i, 2 * i, 16 << i, 8 << i, 127);
+ }
+
+ do_random_tests ();
+ do_page_tests ();
+ return ret;
+}
+
+#include <support/test-driver.c>

33
SOURCES/glibc-RHEL-15343-4.patch
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commit 0aa5b28a504c6f1f17b387d8147715d1496fff62
Author: Joe Simmons-Talbott <josimmon@redhat.com>
Date: Fri Apr 21 09:24:25 2023 -0400
wcsmbs: Add wcsdup() tests. (BZ #30266)
Enable wide character testcases for wcsdup().
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Conflicts:
wcsmbs/Makefile
(different test backport order)
diff -Nrup a/wcsmbs/Makefile b/wcsmbs/Makefile
--- a/wcsmbs/Makefile 2023-11-30 14:14:18.755010508 -0500
+++ b/wcsmbs/Makefile 2023-11-30 14:38:18.511131851 -0500
@@ -53,7 +53,8 @@ tests := tst-wcstof wcsmbs-tst1 tst-wcsn
tst-c16c32-1 wcsatcliff tst-wcstol-locale tst-wcstod-nan-locale \
tst-wcstod-round test-char-types tst-fgetwc-after-eof \
tst-wcstod-nan-sign tst-c16-surrogate tst-c32-state \
- $(addprefix test-,$(strop-tests)) tst-mbstowcs
+ $(addprefix test-,$(strop-tests)) tst-mbstowcs \
+ test-wcsdup
include ../Rules
diff -Nrup a/wcsmbs/test-wcsdup.c b/wcsmbs/test-wcsdup.c
--- a/wcsmbs/test-wcsdup.c 1969-12-31 19:00:00.000000000 -0500
+++ b/wcsmbs/test-wcsdup.c 2023-11-30 14:14:48.869138712 -0500
@@ -0,0 +1,2 @@
+#define WIDE 1
+#include "../string/test-strdup.c"

26
SOURCES/glibc-RHEL-16016-1.patch
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@ -0,0 +1,26 @@
commit 919b9bfaa969c9517fe86c753c001b96ee4ea840
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Oct 5 14:33:14 2022 +0000
Update syscall lists for Linux 6.0
Linux 6.0 has no new syscalls. Update the version number in
syscall-names.list to reflect that it is still current for 6.0.
Tested with build-many-glibcs.py.
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 028ad3107a..4a78258646 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 5.19.
-kernel 5.19
+# The list of system calls is current as of Linux 6.0.
+kernel 6.0
FAST_atomic_update
FAST_cmpxchg

24
SOURCES/glibc-RHEL-16016-2.patch
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@ -0,0 +1,24 @@
commit 5ab9b2c92411eb52f7b7a8e6074f0740d9bd727b
Author: Joseph Myers <joseph@codesourcery.com>
Date: Tue Dec 20 15:24:29 2022 +0000
Update syscall lists for Linux 6.1
Linux 6.1 has no new syscalls. Update the version number in
syscall-names.list to reflect that it is still current for 6.1.
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 4a78258646..1274d9cd4a 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.0.
-kernel 6.0
+# The list of system calls is current as of Linux 6.1.
+kernel 6.1
FAST_atomic_update
FAST_cmpxchg

26
SOURCES/glibc-RHEL-16016-3.patch
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@ -0,0 +1,26 @@
commit f8e8effa2629c74769a3552aba33175746b710bb
Author: Joseph Myers <joseph@codesourcery.com>
Date: Thu Feb 23 22:53:17 2023 +0000
Update syscall lists for Linux 6.2
Linux 6.2 has no new syscalls. Update the version number in
syscall-names.list to reflect that it is still current for 6.2.
Tested with build-many-glibcs.py.
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 822498d3e3..5d27b5279c 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.1.
-kernel 6.1
+# The list of system calls is current as of Linux 6.2.
+kernel 6.2
FAST_atomic_update
FAST_cmpxchg

26
SOURCES/glibc-RHEL-16016-4.patch
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@ -0,0 +1,26 @@
commit eeef96f56ce399f2c3fc1d93c0ba1dde34f3ae41
Author: Joseph Myers <joseph@codesourcery.com>
Date: Mon May 15 22:26:56 2023 +0000
Update syscall lists for Linux 6.3
Linux 6.3 has no new syscalls. Update the version number in
syscall-names.list to reflect that it is still current for 6.3.
Tested with build-many-glibcs.py.
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 5d27b5279c..72fe1d5efe 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.2.
-kernel 6.2
+# The list of system calls is current as of Linux 6.3.
+kernel 6.3
FAST_atomic_update
FAST_cmpxchg

83
SOURCES/glibc-RHEL-16016-5.patch
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@ -0,0 +1,83 @@
commit 1a21693e16a3f3d10f41c486b97fbecb53dd2087
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Jun 28 21:22:14 2023 +0000
Update syscall lists for Linux 6.4
Linux 6.4 adds the riscv_hwprobe syscall on riscv and enables
memfd_secret on s390. Update syscall-names.list and regenerate the
arch-syscall.h headers with build-many-glibcs.py update-syscalls.
Tested with build-many-glibcs.py.
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
index 202520ee25..2416e041c8 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
@@ -198,6 +198,7 @@
#define __NR_request_key 218
#define __NR_restart_syscall 128
#define __NR_riscv_flush_icache 259
+#define __NR_riscv_hwprobe 258
#define __NR_rseq 293
#define __NR_rt_sigaction 134
#define __NR_rt_sigpending 136
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
index 4e65f337d4..a32bc82f60 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
@@ -205,6 +205,7 @@
#define __NR_request_key 218
#define __NR_restart_syscall 128
#define __NR_riscv_flush_icache 259
+#define __NR_riscv_hwprobe 258
#define __NR_rseq 293
#define __NR_rt_sigaction 134
#define __NR_rt_sigpending 136
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
index 57025107e8..2288f20e45 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
@@ -178,6 +178,7 @@
#define __NR_mbind 268
#define __NR_membarrier 356
#define __NR_memfd_create 350
+#define __NR_memfd_secret 447
#define __NR_migrate_pages 287
#define __NR_mincore 218
#define __NR_mkdir 39
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
index 72e19c6d56..05e6d8428e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
@@ -152,6 +152,7 @@
#define __NR_mbind 268
#define __NR_membarrier 356
#define __NR_memfd_create 350
+#define __NR_memfd_secret 447
#define __NR_migrate_pages 287
#define __NR_mincore 218
#define __NR_mkdir 39
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 72fe1d5efe..5b69106434 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.3.
-kernel 6.3
+# The list of system calls is current as of Linux 6.4.
+kernel 6.4
FAST_atomic_update
FAST_cmpxchg
@@ -477,6 +477,7 @@ renameat2
request_key
restart_syscall
riscv_flush_icache
+riscv_hwprobe
rmdir
rseq
rt_sigaction

338
SOURCES/glibc-RHEL-16016-6.patch
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@ -0,0 +1,338 @@
commit 72511f539cc34681ec61c6a0dc2fe6d684760ffe
Author: Joseph Myers <joseph@codesourcery.com>
Date: Tue Sep 12 14:08:53 2023 +0000
Update syscall lists for Linux 6.5
Linux 6.5 has one new syscall, cachestat, and also enables the
cacheflush syscall for hppa. Update syscall-names.list and regenerate
the arch-syscall.h headers with build-many-glibcs.py update-syscalls.
Tested with build-many-glibcs.py.
Conflicts: Removed loongarch, or1k
diff --git a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
index 4fcb6da80a..8f21ee66a0 100644
--- a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
@@ -7,6 +7,7 @@
#define __NR_bind 200
#define __NR_bpf 280
#define __NR_brk 214
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
index 0cf74c1a96..c5802a5fec 100644
--- a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
@@ -11,6 +11,7 @@
#define __NR_bind 104
#define __NR_bpf 515
#define __NR_brk 17
+#define __NR_cachestat 561
#define __NR_capget 368
#define __NR_capset 369
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/arc/arch-syscall.h b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
index c1207aaa12..f23f9e1154 100644
--- a/sysdeps/unix/sysv/linux/arc/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
@@ -11,6 +11,7 @@
#define __NR_bpf 280
#define __NR_brk 214
#define __NR_cacheflush 244
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/arm/arch-syscall.h b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
index e7ba04c106..7edf574899 100644
--- a/sysdeps/unix/sysv/linux/arm/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 386
#define __NR_brk 45
#define __NR_cacheflush 983042
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/csky/arch-syscall.h b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
index dc9383758e..d74a06e063 100644
--- a/sysdeps/unix/sysv/linux/csky/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
@@ -8,6 +8,7 @@
#define __NR_bpf 280
#define __NR_brk 214
#define __NR_cacheflush 245
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
index 767f1287a3..5568b94cd3 100644
--- a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
@@ -13,6 +13,8 @@
#define __NR_bind 22
#define __NR_bpf 341
#define __NR_brk 45
+#define __NR_cacheflush 356
+#define __NR_cachestat 451
#define __NR_capget 106
#define __NR_capset 107
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/i386/arch-syscall.h b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
index 1998f0d76a..3af21a15cb 100644
--- a/sysdeps/unix/sysv/linux/i386/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 357
#define __NR_break 17
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
index b2eab1b93d..39b270e642 100644
--- a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
@@ -11,6 +11,7 @@
#define __NR_bind 1191
#define __NR_bpf 1341
#define __NR_brk 1060
+#define __NR_cachestat 1475
#define __NR_capget 1185
#define __NR_capset 1186
#define __NR_chdir 1034
diff --git a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
index 5fc3723772..315e49cd33 100644
--- a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 354
#define __NR_brk 45
#define __NR_cacheflush 123
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
index b6e9b007e4..54af12780c 100644
--- a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 387
#define __NR_break 17
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
index b3a3871f8a..a2aa1ffa1b 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
@@ -17,6 +17,7 @@
#define __NR_brk 4045
#define __NR_cachectl 4148
#define __NR_cacheflush 4147
+#define __NR_cachestat 4451
#define __NR_capget 4204
#define __NR_capset 4205
#define __NR_chdir 4012
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
index b462182723..5bec858040 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
@@ -14,6 +14,7 @@
#define __NR_brk 6012
#define __NR_cachectl 6198
#define __NR_cacheflush 6197
+#define __NR_cachestat 6451
#define __NR_capget 6123
#define __NR_capset 6124
#define __NR_chdir 6078
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
index a9d6b94572..0166371ee2 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
@@ -14,6 +14,7 @@
#define __NR_brk 5012
#define __NR_cachectl 5198
#define __NR_cacheflush 5197
+#define __NR_cachestat 5451
#define __NR_capget 5123
#define __NR_capset 5124
#define __NR_chdir 5078
diff --git a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
index 809a219ef3..29a4cfa988 100644
--- a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
@@ -8,6 +8,7 @@
#define __NR_bpf 280
#define __NR_brk 214
#define __NR_cacheflush 244
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
index 627831ebae..3a212a0269 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 361
#define __NR_break 17
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 183
#define __NR_capset 184
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
index bae597199d..1038ead227 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
@@ -15,6 +15,7 @@
#define __NR_bpf 361
#define __NR_break 17
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 183
#define __NR_capset 184
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
index 2416e041c8..57b043ffb5 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
@@ -6,6 +6,7 @@
#define __NR_bind 200
#define __NR_bpf 280
#define __NR_brk 214
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
index a32bc82f60..1041a0f8c9 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
@@ -7,6 +7,7 @@
#define __NR_bind 200
#define __NR_bpf 280
#define __NR_brk 214
+#define __NR_cachestat 451
#define __NR_capget 90
#define __NR_capset 91
#define __NR_chdir 49
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
index 2288f20e45..70d4c6782e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
@@ -13,6 +13,7 @@
#define __NR_bind 361
#define __NR_bpf 351
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
index 05e6d8428e..65a8a9e316 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
@@ -11,6 +11,7 @@
#define __NR_bind 361
#define __NR_bpf 351
#define __NR_brk 45
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/sh/arch-syscall.h b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
index d52b522d9c..94aad0f119 100644
--- a/sysdeps/unix/sysv/linux/sh/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
@@ -14,6 +14,7 @@
#define __NR_bpf 375
#define __NR_brk 45
#define __NR_cacheflush 123
+#define __NR_cachestat 451
#define __NR_capget 184
#define __NR_capset 185
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
index d3f4d8aa3e..d630306c75 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
@@ -14,6 +14,7 @@
#define __NR_bind 353
#define __NR_bpf 349
#define __NR_brk 17
+#define __NR_cachestat 451
#define __NR_capget 21
#define __NR_capset 22
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
index 2cc03d7a24..930f29b4d2 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
@@ -14,6 +14,7 @@
#define __NR_bind 353
#define __NR_bpf 349
#define __NR_brk 17
+#define __NR_cachestat 451
#define __NR_capget 21
#define __NR_capset 22
#define __NR_chdir 12
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index 5b69106434..cf6f70ecd9 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.4.
-kernel 6.4
+# The list of system calls is current as of Linux 6.5.
+kernel 6.5
FAST_atomic_update
FAST_cmpxchg
@@ -58,6 +58,7 @@ breakpoint
brk
cachectl
cacheflush
+cachestat
capget
capset
chdir
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
index b4ab892ec1..58646cf0bd 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
@@ -12,6 +12,7 @@
#define __NR_bind 49
#define __NR_bpf 321
#define __NR_brk 12
+#define __NR_cachestat 451
#define __NR_capget 125
#define __NR_capset 126
#define __NR_chdir 80
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
index 772559c87b..604bcdfa5b 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
@@ -11,6 +11,7 @@
#define __NR_bind 1073741873
#define __NR_bpf 1073742145
#define __NR_brk 1073741836
+#define __NR_cachestat 1073742275
#define __NR_capget 1073741949
#define __NR_capset 1073741950
#define __NR_chdir 1073741904

350
SOURCES/glibc-RHEL-16016-7.patch
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@ -0,0 +1,350 @@
commit 582383b37d95b133c1ee6855ffaa2b1f5cb3d3b8
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Oct 31 13:32:33 2023 -0300
Update syscall lists for Linux 6.6
Linux 6.6 has one new syscall for all architectures, fchmodat2, and
the map_shadow_stack on x86_64.
Conflicts: Removed loongarch, or1k
diff --git a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
index 8f21ee66a0..746991aa2f 100644
--- a/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/aarch64/arch-syscall.h
@@ -44,6 +44,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl 25
diff --git a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
index c5802a5fec..32efe51267 100644
--- a/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/alpha/arch-syscall.h
@@ -56,6 +56,7 @@
#define __NR_fchdir 13
#define __NR_fchmod 124
#define __NR_fchmodat 461
+#define __NR_fchmodat2 562
#define __NR_fchown 123
#define __NR_fchownat 453
#define __NR_fcntl 92
diff --git a/sysdeps/unix/sysv/linux/arc/arch-syscall.h b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
index f23f9e1154..1d2879e877 100644
--- a/sysdeps/unix/sysv/linux/arc/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arc/arch-syscall.h
@@ -48,6 +48,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl64 25
diff --git a/sysdeps/unix/sysv/linux/arm/arch-syscall.h b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
index 7edf574899..6711981e78 100644
--- a/sysdeps/unix/sysv/linux/arm/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/arm/arch-syscall.h
@@ -64,6 +64,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 333
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 325
diff --git a/sysdeps/unix/sysv/linux/csky/arch-syscall.h b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
index d74a06e063..92d9a703ea 100644
--- a/sysdeps/unix/sysv/linux/csky/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/csky/arch-syscall.h
@@ -50,6 +50,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl64 25
diff --git a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
index 5568b94cd3..fbac124b70 100644
--- a/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/hppa/arch-syscall.h
@@ -63,6 +63,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 286
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchownat 278
#define __NR_fcntl 55
diff --git a/sysdeps/unix/sysv/linux/i386/arch-syscall.h b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
index 3af21a15cb..8961788a96 100644
--- a/sysdeps/unix/sysv/linux/i386/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/i386/arch-syscall.h
@@ -67,6 +67,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 306
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 298
diff --git a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
index 39b270e642..1ef762d693 100644
--- a/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/ia64/arch-syscall.h
@@ -55,6 +55,7 @@
#define __NR_fchdir 1035
#define __NR_fchmod 1099
#define __NR_fchmodat 1292
+#define __NR_fchmodat2 1476
#define __NR_fchown 1100
#define __NR_fchownat 1284
#define __NR_fcntl 1066
diff --git a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
index 315e49cd33..2053d5d392 100644
--- a/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/m68k/arch-syscall.h
@@ -67,6 +67,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 299
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 291
diff --git a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
index 54af12780c..6865b1693c 100644
--- a/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/microblaze/arch-syscall.h
@@ -67,6 +67,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 306
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 298
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
index a2aa1ffa1b..b13ace8e1c 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips32/arch-syscall.h
@@ -67,6 +67,7 @@
#define __NR_fchdir 4133
#define __NR_fchmod 4094
#define __NR_fchmodat 4299
+#define __NR_fchmodat2 4452
#define __NR_fchown 4095
#define __NR_fchownat 4291
#define __NR_fcntl 4055
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
index 5bec858040..b7a7c0dfa7 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/arch-syscall.h
@@ -64,6 +64,7 @@
#define __NR_fchdir 6079
#define __NR_fchmod 6089
#define __NR_fchmodat 6262
+#define __NR_fchmodat2 6452
#define __NR_fchown 6091
#define __NR_fchownat 6254
#define __NR_fcntl 6070
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
index 0166371ee2..e5d7f91f48 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/arch-syscall.h
@@ -59,6 +59,7 @@
#define __NR_fchdir 5079
#define __NR_fchmod 5089
#define __NR_fchmodat 5258
+#define __NR_fchmodat2 5452
#define __NR_fchown 5091
#define __NR_fchownat 5250
#define __NR_fcntl 5070
diff --git a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
index 29a4cfa988..89950cc33a 100644
--- a/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/nios2/arch-syscall.h
@@ -49,6 +49,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl64 25
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
index 3a212a0269..64683bcb76 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/arch-syscall.h
@@ -66,6 +66,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 297
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchownat 289
#define __NR_fcntl 55
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
index 1038ead227..af1bbf32e8 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/arch-syscall.h
@@ -60,6 +60,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 297
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchownat 289
#define __NR_fcntl 55
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
index 57b043ffb5..56e3088cbf 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/arch-syscall.h
@@ -43,6 +43,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl64 25
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
index 1041a0f8c9..508161b47a 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h
@@ -44,6 +44,7 @@
#define __NR_fchdir 50
#define __NR_fchmod 52
#define __NR_fchmodat 53
+#define __NR_fchmodat2 452
#define __NR_fchown 55
#define __NR_fchownat 54
#define __NR_fcntl 25
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
index 70d4c6782e..1498ebf42e 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/arch-syscall.h
@@ -65,6 +65,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 299
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 291
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
index 65a8a9e316..624d71b56d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/arch-syscall.h
@@ -56,6 +56,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 299
+#define __NR_fchmodat2 452
#define __NR_fchown 207
#define __NR_fchownat 291
#define __NR_fcntl 55
diff --git a/sysdeps/unix/sysv/linux/sh/arch-syscall.h b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
index 94aad0f119..37211f5f8c 100644
--- a/sysdeps/unix/sysv/linux/sh/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sh/arch-syscall.h
@@ -64,6 +64,7 @@
#define __NR_fchdir 133
#define __NR_fchmod 94
#define __NR_fchmodat 306
+#define __NR_fchmodat2 452
#define __NR_fchown 95
#define __NR_fchown32 207
#define __NR_fchownat 298
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
index d630306c75..8093abcc9c 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/arch-syscall.h
@@ -66,6 +66,7 @@
#define __NR_fchdir 176
#define __NR_fchmod 124
#define __NR_fchmodat 295
+#define __NR_fchmodat2 452
#define __NR_fchown 123
#define __NR_fchown32 32
#define __NR_fchownat 287
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
index 930f29b4d2..d25ccfb571 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/arch-syscall.h
@@ -60,6 +60,7 @@
#define __NR_fchdir 176
#define __NR_fchmod 124
#define __NR_fchmodat 295
+#define __NR_fchmodat2 452
#define __NR_fchown 123
#define __NR_fchownat 287
#define __NR_fcntl 92
diff --git a/sysdeps/unix/sysv/linux/syscall-names.list b/sysdeps/unix/sysv/linux/syscall-names.list
index cf6f70ecd9..c3627fcd7f 100644
--- a/sysdeps/unix/sysv/linux/syscall-names.list
+++ b/sysdeps/unix/sysv/linux/syscall-names.list
@@ -21,8 +21,8 @@
# This file can list all potential system calls. The names are only
# used if the installed kernel headers also provide them.
-# The list of system calls is current as of Linux 6.5.
-kernel 6.5
+# The list of system calls is current as of Linux 6.6.
+kernel 6.6
FAST_atomic_update
FAST_cmpxchg
@@ -117,6 +117,7 @@ fanotify_mark
fchdir
fchmod
fchmodat
+fchmodat2
fchown
fchown32
fchownat
@@ -246,6 +247,7 @@ lsetxattr
lstat
lstat64
madvise
+map_shadow_stack
mbind
membarrier
memfd_create
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
index 58646cf0bd..5e4c9e901c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/64/arch-syscall.h
@@ -59,6 +59,7 @@
#define __NR_fchdir 81
#define __NR_fchmod 91
#define __NR_fchmodat 268
+#define __NR_fchmodat2 452
#define __NR_fchown 93
#define __NR_fchownat 260
#define __NR_fcntl 72
@@ -153,6 +154,7 @@
#define __NR_lsetxattr 189
#define __NR_lstat 6
#define __NR_madvise 28
+#define __NR_map_shadow_stack 453
#define __NR_mbind 237
#define __NR_membarrier 324
#define __NR_memfd_create 319
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
index 604bcdfa5b..dd5e196272 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/arch-syscall.h
@@ -55,6 +55,7 @@
#define __NR_fchdir 1073741905
#define __NR_fchmod 1073741915
#define __NR_fchmodat 1073742092
+#define __NR_fchmodat2 1073742276
#define __NR_fchown 1073741917
#define __NR_fchownat 1073742084
#define __NR_fcntl 1073741896

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SOURCES/glibc-RHEL-16275.patch
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@ -0,0 +1,16 @@
Downstream-only patch to refer to /run instead of the legacy /var/run
directory in the downstream nscd systemd socket file.
diff --git a/nscd/nscd.socket b/nscd/nscd.socket
index 7e512d5339fa1136..52a67608c7c55475 100644
--- a/nscd/nscd.socket
+++ b/nscd/nscd.socket
@@ -2,7 +2,7 @@
Description=Name Service Cache Daemon Socket
[Socket]
-ListenDatagram=/var/run/nscd/socket
+ListenDatagram=/run/nscd/socket
[Install]
WantedBy=sockets.target

211
SOURCES/glibc-RHEL-16643-1.patch
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@ -0,0 +1,211 @@
commit 06890c7ba553e82393413c59bb3131db5815a337
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Tue Jul 27 22:49:53 2021 +0530
gaiconf_init: Refactor some bits for readability
Split out line processing for `label`, `precedence` and `scopev4` into
separate functions instead of the gotos.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index d6046a707f1d742a..3bf9a8bae16a5b02 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1858,6 +1858,66 @@ scopecmp (const void *p1, const void *p2)
return 1;
}
+static bool
+add_prefixlist (struct prefixlist **listp, size_t *lenp, bool *nullbitsp,
+ char *val1, char *val2, char **pos)
+{
+ struct in6_addr prefix;
+ unsigned long int bits;
+ unsigned long int val;
+ char *endp;
+
+ bits = 128;
+ __set_errno (0);
+ char *cp = strchr (val1, '/');
+ if (cp != NULL)
+ *cp++ = '\0';
+ *pos = cp;
+ if (inet_pton (AF_INET6, val1, &prefix)
+ && (cp == NULL
+ || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && bits <= 128
+ && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && val <= INT_MAX)
+ {
+ struct prefixlist *newp = malloc (sizeof (*newp));
+ if (newp == NULL)
+ return false;
+
+ memcpy (&newp->entry.prefix, &prefix, sizeof (prefix));
+ newp->entry.bits = bits;
+ newp->entry.val = val;
+ newp->next = *listp;
+ *listp = newp;
+ ++*lenp;
+ *nullbitsp |= bits == 0;
+ }
+ return true;
+}
+
+static bool
+add_scopelist (struct scopelist **listp, size_t *lenp, bool *nullbitsp,
+ const struct in6_addr *prefixp, unsigned long int bits,
+ unsigned long int val)
+{
+ struct scopelist *newp = malloc (sizeof (*newp));
+ if (newp == NULL)
+ return false;
+
+ newp->entry.netmask = htonl (bits != 96 ? (0xffffffff << (128 - bits)) : 0);
+ newp->entry.addr32 = (prefixp->s6_addr32[3] & newp->entry.netmask);
+ newp->entry.scope = val;
+ newp->next = *listp;
+ *listp = newp;
+ ++*lenp;
+ *nullbitsp |= bits == 96;
+
+ return true;
+}
static void
gaiconf_init (void)
@@ -1933,55 +1993,17 @@ gaiconf_init (void)
/* Ignore the rest of the line. */
*cp = '\0';
- struct prefixlist **listp;
- size_t *lenp;
- bool *nullbitsp;
switch (cmdlen)
{
case 5:
if (strcmp (cmd, "label") == 0)
{
- struct in6_addr prefix;
- unsigned long int bits;
- unsigned long int val;
- char *endp;
-
- listp = &labellist;
- lenp = &nlabellist;
- nullbitsp = &labellist_nullbits;
-
- new_elem:
- bits = 128;
- __set_errno (0);
- cp = strchr (val1, '/');
- if (cp != NULL)
- *cp++ = '\0';
- if (inet_pton (AF_INET6, val1, &prefix)
- && (cp == NULL
- || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && bits <= 128
- && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && val <= INT_MAX)
+ if (!add_prefixlist (&labellist, &nlabellist,
+ &labellist_nullbits, val1, val2, &cp))
{
- struct prefixlist *newp = malloc (sizeof (*newp));
- if (newp == NULL)
- {
- free (line);
- fclose (fp);
- goto no_file;
- }
-
- memcpy (&newp->entry.prefix, &prefix, sizeof (prefix));
- newp->entry.bits = bits;
- newp->entry.val = val;
- newp->next = *listp;
- *listp = newp;
- ++*lenp;
- *nullbitsp |= bits == 0;
+ free (line);
+ fclose (fp);
+ goto no_file;
}
}
break;
@@ -2023,27 +2045,14 @@ gaiconf_init (void)
&& *endp == '\0'
&& val <= INT_MAX)
{
- struct scopelist *newp;
- new_scope:
- newp = malloc (sizeof (*newp));
- if (newp == NULL)
+ if (!add_scopelist (&scopelist, &nscopelist,
+ &scopelist_nullbits, &prefix,
+ bits, val))
{
free (line);
fclose (fp);
goto no_file;
}
-
- newp->entry.netmask = htonl (bits != 96
- ? (0xffffffff
- << (128 - bits))
- : 0);
- newp->entry.addr32 = (prefix.s6_addr32[3]
- & newp->entry.netmask);
- newp->entry.scope = val;
- newp->next = scopelist;
- scopelist = newp;
- ++nscopelist;
- scopelist_nullbits |= bits == 96;
}
}
else if (inet_pton (AF_INET, val1, &prefix.s6_addr32[3])
@@ -2057,8 +2066,14 @@ gaiconf_init (void)
&& *endp == '\0'
&& val <= INT_MAX)
{
- bits += 96;
- goto new_scope;
+ if (!add_scopelist (&scopelist, &nscopelist,
+ &scopelist_nullbits, &prefix,
+ bits + 96, val))
+ {
+ free (line);
+ fclose (fp);
+ goto no_file;
+ }
}
}
break;
@@ -2066,10 +2081,14 @@ gaiconf_init (void)
case 10:
if (strcmp (cmd, "precedence") == 0)
{
- listp = &precedencelist;
- lenp = &nprecedencelist;
- nullbitsp = &precedencelist_nullbits;
- goto new_elem;
+ if (!add_prefixlist (&precedencelist, &nprecedencelist,
+ &precedencelist_nullbits, val1, val2,
+ &cp))
+ {
+ free (line);
+ fclose (fp);
+ goto no_file;
+ }
}
break;
}

584
SOURCES/glibc-RHEL-16643-2.patch
Unescape View File

@ -0,0 +1,584 @@
commit bc0d18d873abf2cda6842ad8bb4df2a31dc0fbac
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Tue Aug 3 21:29:23 2021 +0530
gai_init: Avoid jumping from if condition to its else counterpart
Clean up another antipattern where code flows from an if condition to
its else counterpart with a goto.
Most of the change in this patch is whitespace-only; a `git diff -b`
ought to show the actual logic changes.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 3bf9a8bae16a5b02..1635a09837351068 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1933,142 +1933,122 @@ gaiconf_init (void)
bool scopelist_nullbits = false;
FILE *fp = fopen (GAICONF_FNAME, "rce");
- if (fp != NULL)
+ if (fp == NULL)
+ goto no_file;
+
+ struct __stat64_t64 st;
+ if (__fstat64_time64 (fileno (fp), &st) != 0)
{
- struct __stat64_t64 st;
- if (__fstat64_time64 (fileno (fp), &st) != 0)
- {
- fclose (fp);
- goto no_file;
- }
+ fclose (fp);
+ goto no_file;
+ }
- char *line = NULL;
- size_t linelen = 0;
+ char *line = NULL;
+ size_t linelen = 0;
- __fsetlocking (fp, FSETLOCKING_BYCALLER);
+ __fsetlocking (fp, FSETLOCKING_BYCALLER);
- while (!feof_unlocked (fp))
- {
- ssize_t n = __getline (&line, &linelen, fp);
- if (n <= 0)
- break;
+ while (!feof_unlocked (fp))
+ {
+ ssize_t n = __getline (&line, &linelen, fp);
+ if (n <= 0)
+ break;
- /* Handle comments. No escaping possible so this is easy. */
- char *cp = strchr (line, '#');
- if (cp != NULL)
- *cp = '\0';
+ /* Handle comments. No escaping possible so this is easy. */
+ char *cp = strchr (line, '#');
+ if (cp != NULL)
+ *cp = '\0';
- cp = line;
- while (isspace (*cp))
- ++cp;
+ cp = line;
+ while (isspace (*cp))
+ ++cp;
- char *cmd = cp;
- while (*cp != '\0' && !isspace (*cp))
- ++cp;
- size_t cmdlen = cp - cmd;
+ char *cmd = cp;
+ while (*cp != '\0' && !isspace (*cp))
+ ++cp;
+ size_t cmdlen = cp - cmd;
- if (*cp != '\0')
- *cp++ = '\0';
- while (isspace (*cp))
- ++cp;
+ if (*cp != '\0')
+ *cp++ = '\0';
+ while (isspace (*cp))
+ ++cp;
- char *val1 = cp;
- while (*cp != '\0' && !isspace (*cp))
- ++cp;
- size_t val1len = cp - cmd;
+ char *val1 = cp;
+ while (*cp != '\0' && !isspace (*cp))
+ ++cp;
+ size_t val1len = cp - cmd;
- /* We always need at least two values. */
- if (val1len == 0)
- continue;
+ /* We always need at least two values. */
+ if (val1len == 0)
+ continue;
- if (*cp != '\0')
- *cp++ = '\0';
- while (isspace (*cp))
- ++cp;
+ if (*cp != '\0')
+ *cp++ = '\0';
+ while (isspace (*cp))
+ ++cp;
- char *val2 = cp;
- while (*cp != '\0' && !isspace (*cp))
- ++cp;
+ char *val2 = cp;
+ while (*cp != '\0' && !isspace (*cp))
+ ++cp;
- /* Ignore the rest of the line. */
- *cp = '\0';
+ /* Ignore the rest of the line. */
+ *cp = '\0';
- switch (cmdlen)
+ switch (cmdlen)
+ {
+ case 5:
+ if (strcmp (cmd, "label") == 0)
{
- case 5:
- if (strcmp (cmd, "label") == 0)
+ if (!add_prefixlist (&labellist, &nlabellist,
+ &labellist_nullbits, val1, val2, &cp))
{
- if (!add_prefixlist (&labellist, &nlabellist,
- &labellist_nullbits, val1, val2, &cp))
- {
- free (line);
- fclose (fp);
- goto no_file;
- }
+ free (line);
+ fclose (fp);
+ goto no_file;
}
- break;
+ }
+ break;
- case 6:
- if (strcmp (cmd, "reload") == 0)
- {
- gaiconf_reload_flag = strcmp (val1, "yes") == 0;
- if (gaiconf_reload_flag)
- gaiconf_reload_flag_ever_set = 1;
- }
- break;
+ case 6:
+ if (strcmp (cmd, "reload") == 0)
+ {
+ gaiconf_reload_flag = strcmp (val1, "yes") == 0;
+ if (gaiconf_reload_flag)
+ gaiconf_reload_flag_ever_set = 1;
+ }
+ break;
- case 7:
- if (strcmp (cmd, "scopev4") == 0)
+ case 7:
+ if (strcmp (cmd, "scopev4") == 0)
+ {
+ struct in6_addr prefix;
+ unsigned long int bits;
+ unsigned long int val;
+ char *endp;
+
+ bits = 32;
+ __set_errno (0);
+ cp = strchr (val1, '/');
+ if (cp != NULL)
+ *cp++ = '\0';
+ if (inet_pton (AF_INET6, val1, &prefix))
{
- struct in6_addr prefix;
- unsigned long int bits;
- unsigned long int val;
- char *endp;
-
- bits = 32;
- __set_errno (0);
- cp = strchr (val1, '/');
- if (cp != NULL)
- *cp++ = '\0';
- if (inet_pton (AF_INET6, val1, &prefix))
- {
- bits = 128;
- if (IN6_IS_ADDR_V4MAPPED (&prefix)
- && (cp == NULL
- || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && bits >= 96
- && bits <= 128
- && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && val <= INT_MAX)
- {
- if (!add_scopelist (&scopelist, &nscopelist,
- &scopelist_nullbits, &prefix,
- bits, val))
- {
- free (line);
- fclose (fp);
- goto no_file;
- }
- }
- }
- else if (inet_pton (AF_INET, val1, &prefix.s6_addr32[3])
- && (cp == NULL
- || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && bits <= 32
- && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
- || errno != ERANGE)
- && *endp == '\0'
- && val <= INT_MAX)
+ bits = 128;
+ if (IN6_IS_ADDR_V4MAPPED (&prefix)
+ && (cp == NULL
+ || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && bits >= 96
+ && bits <= 128
+ && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && val <= INT_MAX)
{
if (!add_scopelist (&scopelist, &nscopelist,
&scopelist_nullbits, &prefix,
- bits + 96, val))
+ bits, val))
{
free (line);
fclose (fp);
@@ -2076,173 +2056,191 @@ gaiconf_init (void)
}
}
}
- break;
-
- case 10:
- if (strcmp (cmd, "precedence") == 0)
+ else if (inet_pton (AF_INET, val1, &prefix.s6_addr32[3])
+ && (cp == NULL
+ || (bits = strtoul (cp, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && bits <= 32
+ && ((val = strtoul (val2, &endp, 10)) != ULONG_MAX
+ || errno != ERANGE)
+ && *endp == '\0'
+ && val <= INT_MAX)
{
- if (!add_prefixlist (&precedencelist, &nprecedencelist,
- &precedencelist_nullbits, val1, val2,
- &cp))
+ if (!add_scopelist (&scopelist, &nscopelist,
+ &scopelist_nullbits, &prefix,
+ bits + 96, val))
{
free (line);
fclose (fp);
goto no_file;
}
}
- break;
- }
- }
-
- free (line);
-
- fclose (fp);
-
- /* Create the array for the labels. */
- struct prefixentry *new_labels;
- if (nlabellist > 0)
- {
- if (!labellist_nullbits)
- ++nlabellist;
- new_labels = malloc (nlabellist * sizeof (*new_labels));
- if (new_labels == NULL)
- goto no_file;
-
- int i = nlabellist;
- if (!labellist_nullbits)
- {
- --i;
- memset (&new_labels[i].prefix, '\0', sizeof (struct in6_addr));
- new_labels[i].bits = 0;
- new_labels[i].val = 1;
}
+ break;
- struct prefixlist *l = labellist;
- while (i-- > 0)
+ case 10:
+ if (strcmp (cmd, "precedence") == 0)
{
- new_labels[i] = l->entry;
- l = l->next;
+ if (!add_prefixlist (&precedencelist, &nprecedencelist,
+ &precedencelist_nullbits, val1, val2,
+ &cp))
+ {
+ free (line);
+ fclose (fp);
+ goto no_file;
+ }
}
- free_prefixlist (labellist);
- labellist = NULL;
-
- /* Sort the entries so that the most specific ones are at
- the beginning. */
- qsort (new_labels, nlabellist, sizeof (*new_labels), prefixcmp);
+ break;
}
- else
- new_labels = (struct prefixentry *) default_labels;
-
- struct prefixentry *new_precedence;
- if (nprecedencelist > 0)
- {
- if (!precedencelist_nullbits)
- ++nprecedencelist;
- new_precedence = malloc (nprecedencelist * sizeof (*new_precedence));
- if (new_precedence == NULL)
- {
- if (new_labels != default_labels)
- free (new_labels);
- goto no_file;
- }
+ }
- int i = nprecedencelist;
- if (!precedencelist_nullbits)
- {
- --i;
- memset (&new_precedence[i].prefix, '\0',
- sizeof (struct in6_addr));
- new_precedence[i].bits = 0;
- new_precedence[i].val = 40;
- }
+ free (line);
- struct prefixlist *l = precedencelist;
- while (i-- > 0)
- {
- new_precedence[i] = l->entry;
- l = l->next;
- }
- free_prefixlist (precedencelist);
- precedencelist = NULL;
+ fclose (fp);
- /* Sort the entries so that the most specific ones are at
- the beginning. */
- qsort (new_precedence, nprecedencelist, sizeof (*new_precedence),
- prefixcmp);
+ /* Create the array for the labels. */
+ struct prefixentry *new_labels;
+ if (nlabellist > 0)
+ {
+ if (!labellist_nullbits)
+ ++nlabellist;
+ new_labels = malloc (nlabellist * sizeof (*new_labels));
+ if (new_labels == NULL)
+ goto no_file;
+
+ int i = nlabellist;
+ if (!labellist_nullbits)
+ {
+ --i;
+ memset (&new_labels[i].prefix, '\0', sizeof (struct in6_addr));
+ new_labels[i].bits = 0;
+ new_labels[i].val = 1;
}
- else
- new_precedence = (struct prefixentry *) default_precedence;
- struct scopeentry *new_scopes;
- if (nscopelist > 0)
+ struct prefixlist *l = labellist;
+ while (i-- > 0)
{
- if (!scopelist_nullbits)
- ++nscopelist;
- new_scopes = malloc (nscopelist * sizeof (*new_scopes));
- if (new_scopes == NULL)
- {
- if (new_labels != default_labels)
- free (new_labels);
- if (new_precedence != default_precedence)
- free (new_precedence);
- goto no_file;
- }
-
- int i = nscopelist;
- if (!scopelist_nullbits)
- {
- --i;
- new_scopes[i].addr32 = 0;
- new_scopes[i].netmask = 0;
- new_scopes[i].scope = 14;
- }
+ new_labels[i] = l->entry;
+ l = l->next;
+ }
+ free_prefixlist (labellist);
+ labellist = NULL;
- struct scopelist *l = scopelist;
- while (i-- > 0)
- {
- new_scopes[i] = l->entry;
- l = l->next;
- }
- free_scopelist (scopelist);
+ /* Sort the entries so that the most specific ones are at
+ the beginning. */
+ qsort (new_labels, nlabellist, sizeof (*new_labels), prefixcmp);
+ }
+ else
+ new_labels = (struct prefixentry *) default_labels;
- /* Sort the entries so that the most specific ones are at
- the beginning. */
- qsort (new_scopes, nscopelist, sizeof (*new_scopes),
- scopecmp);
+ struct prefixentry *new_precedence;
+ if (nprecedencelist > 0)
+ {
+ if (!precedencelist_nullbits)
+ ++nprecedencelist;
+ new_precedence = malloc (nprecedencelist * sizeof (*new_precedence));
+ if (new_precedence == NULL)
+ {
+ if (new_labels != default_labels)
+ free (new_labels);
+ goto no_file;
}
- else
- new_scopes = (struct scopeentry *) default_scopes;
-
- /* Now we are ready to replace the values. */
- const struct prefixentry *old = labels;
- labels = new_labels;
- if (old != default_labels)
- free ((void *) old);
- old = precedence;
- precedence = new_precedence;
- if (old != default_precedence)
- free ((void *) old);
+ int i = nprecedencelist;
+ if (!precedencelist_nullbits)
+ {
+ --i;
+ memset (&new_precedence[i].prefix, '\0',
+ sizeof (struct in6_addr));
+ new_precedence[i].bits = 0;
+ new_precedence[i].val = 40;
+ }
- const struct scopeentry *oldscope = scopes;
- scopes = new_scopes;
- if (oldscope != default_scopes)
- free ((void *) oldscope);
+ struct prefixlist *l = precedencelist;
+ while (i-- > 0)
+ {
+ new_precedence[i] = l->entry;
+ l = l->next;
+ }
+ free_prefixlist (precedencelist);
+ precedencelist = NULL;
- save_gaiconf_mtime (&st);
+ /* Sort the entries so that the most specific ones are at
+ the beginning. */
+ qsort (new_precedence, nprecedencelist, sizeof (*new_precedence),
+ prefixcmp);
}
else
+ new_precedence = (struct prefixentry *) default_precedence;
+
+ struct scopeentry *new_scopes;
+ if (nscopelist > 0)
{
- no_file:
- free_prefixlist (labellist);
- free_prefixlist (precedencelist);
+ if (!scopelist_nullbits)
+ ++nscopelist;
+ new_scopes = malloc (nscopelist * sizeof (*new_scopes));
+ if (new_scopes == NULL)
+ {
+ if (new_labels != default_labels)
+ free (new_labels);
+ if (new_precedence != default_precedence)
+ free (new_precedence);
+ goto no_file;
+ }
+
+ int i = nscopelist;
+ if (!scopelist_nullbits)
+ {
+ --i;
+ new_scopes[i].addr32 = 0;
+ new_scopes[i].netmask = 0;
+ new_scopes[i].scope = 14;
+ }
+
+ struct scopelist *l = scopelist;
+ while (i-- > 0)
+ {
+ new_scopes[i] = l->entry;
+ l = l->next;
+ }
free_scopelist (scopelist);
- /* If we previously read the file but it is gone now, free the
- old data and use the builtin one. Leave the reload flag
- alone. */
- fini ();
+ /* Sort the entries so that the most specific ones are at
+ the beginning. */
+ qsort (new_scopes, nscopelist, sizeof (*new_scopes),
+ scopecmp);
}
+ else
+ new_scopes = (struct scopeentry *) default_scopes;
+
+ /* Now we are ready to replace the values. */
+ const struct prefixentry *old = labels;
+ labels = new_labels;
+ if (old != default_labels)
+ free ((void *) old);
+
+ old = precedence;
+ precedence = new_precedence;
+ if (old != default_precedence)
+ free ((void *) old);
+
+ const struct scopeentry *oldscope = scopes;
+ scopes = new_scopes;
+ if (oldscope != default_scopes)
+ free ((void *) oldscope);
+
+ save_gaiconf_mtime (&st);
+ return;
+
+no_file:
+ free_prefixlist (labellist);
+ free_prefixlist (precedencelist);
+ free_scopelist (scopelist);
+
+ /* If we previously read the file but it is gone now, free the old data and
+ use the builtin one. Leave the reload flag alone. */
+ fini ();
}

90
SOURCES/glibc-RHEL-16643-3.patch
Unescape View File

@ -0,0 +1,90 @@
commit d3f2c2c8b57bdf9d963db8fa2372d6c1b86a337e
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Tue Mar 22 22:40:05 2022 +0530
getaddrinfo: Refactor code for readability
The close_retry goto jump is confusing and clumsy to read, so refactor
the code a bit to make it easier to follow.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 1635a09837351068..5e9bd17eb949974c 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -2253,6 +2253,36 @@ gaiconf_reload (void)
gaiconf_init ();
}
+static bool
+try_connect (int *fdp, int *afp, struct sockaddr_in6 *source_addrp,
+ const struct sockaddr *addr, socklen_t addrlen, int family)
+{
+ int fd = *fdp;
+ int af = *afp;
+ socklen_t sl = sizeof (*source_addrp);
+
+ while (true)
+ {
+ if (fd != -1 && __connect (fd, addr, addrlen) == 0
+ && __getsockname (fd, (struct sockaddr *) source_addrp, &sl) == 0)
+ return true;
+
+ if (errno == EAFNOSUPPORT && af == AF_INET6 && family == AF_INET)
+ {
+ /* This could mean IPv6 sockets are IPv6-only. */
+ if (fd != -1)
+ __close_nocancel_nostatus (fd);
+ *afp = af = AF_INET;
+ *fdp = fd = __socket (AF_INET, SOCK_DGRAM | SOCK_CLOEXEC,
+ IPPROTO_IP);
+ continue;
+ }
+
+ return false;
+ }
+
+ __builtin_unreachable ();
+}
int
getaddrinfo (const char *name, const char *service,
@@ -2443,7 +2473,6 @@ getaddrinfo (const char *name, const char *service,
if (fd == -1 || (af == AF_INET && q->ai_family == AF_INET6))
{
if (fd != -1)
- close_retry:
__close_nocancel_nostatus (fd);
af = q->ai_family;
fd = __socket (af, SOCK_DGRAM | SOCK_CLOEXEC, IPPROTO_IP);
@@ -2455,14 +2484,10 @@ getaddrinfo (const char *name, const char *service,
__connect (fd, &sa, sizeof (sa));
}
- socklen_t sl = sizeof (results[i].source_addr);
- if (fd != -1
- && __connect (fd, q->ai_addr, q->ai_addrlen) == 0
- && __getsockname (fd,
- (struct sockaddr *) &results[i].source_addr,
- &sl) == 0)
+ if (try_connect (&fd, &af, &results[i].source_addr, q->ai_addr,
+ q->ai_addrlen, q->ai_family))
{
- results[i].source_addr_len = sl;
+ results[i].source_addr_len = sizeof (results[i].source_addr);
results[i].got_source_addr = true;
if (in6ai != NULL)
@@ -2527,10 +2552,6 @@ getaddrinfo (const char *name, const char *service,
results[i].source_addr_len = sizeof (struct sockaddr_in);
}
}
- else if (errno == EAFNOSUPPORT && af == AF_INET6
- && q->ai_family == AF_INET)
- /* This could mean IPv6 sockets are IPv6-only. */
- goto close_retry;
else
/* Just make sure that if we have to process the same
address again we do not copy any memory. */

32
SOURCES/glibc-RHEL-16643-4.patch
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commit c9226c03da0276593a0918eaa9a14835183343e8
Author: Jörg Sonnenberger <joerg@bec.de>
Date: Mon Sep 26 13:59:16 2022 -0400
get_nscd_addresses: Fix subscript typos [BZ #29605]
Fix the subscript on air->family, which was accidentally set to COUNT
when it should have remained as I.
Resolves: BZ #29605
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 5e9bd17eb949974c..40a32a3de30cb294 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -549,11 +549,11 @@ get_nscd_addresses (const char *name, const struct addrinfo *req,
at[count].addr[2] = htonl (0xffff);
}
else if (req->ai_family == AF_UNSPEC
- || air->family[count] == req->ai_family)
+ || air->family[i] == req->ai_family)
{
- at[count].family = air->family[count];
+ at[count].family = air->family[i];
memcpy (at[count].addr, addrs, size);
- if (air->family[count] == AF_INET6)
+ if (air->family[i] == AF_INET6)
res->got_ipv6 = true;
}
at[count].next = at + count + 1;

25
SOURCES/glibc-RHEL-16643-5.patch
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commit 3bf7bab88b0da01d4f5ef20afbbb45203185501e
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Tue Sep 5 17:04:05 2023 -0400
getcanonname: Fix a typo
This code is generally unused in practice since there don't seem to be
any NSS modules that only implement _nss_MOD_gethostbyname2_r and not
_nss_MOD_gethostbyname3_r.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 40a32a3de30cb294..e9f47aea358a3351 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -346,7 +346,7 @@ getcanonname (nss_action_list nip, const char *hname, const char *name)
string. */
s = (char *) name;
}
- return __strdup (name);
+ return __strdup (s);
}
/* Process looked up canonical name and if necessary, decode to IDNA. Result

23
SOURCES/glibc-RHEL-16643-6.patch
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commit 61bac1a9d2ab80ebcbc51484722e6ea43414bec7
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Dec 20 16:14:33 2023 +0100
nss: Remove unused allocation from get_nscd_addresses in getaddrinfo
No bug because this is not visible if glibc is built with
optimization. Otherwise this would be a critical resource leak.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index e9f47aea358a3351..321a6679d46494a3 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -514,7 +514,6 @@ get_nscd_addresses (const char *name, const struct addrinfo *req,
int result = 0;
char *addrs = air->addrs;
- struct gaih_addrtuple *addrfree = calloc (air->naddrs, sizeof (*addrfree));
struct gaih_addrtuple *at = calloc (air->naddrs, sizeof (*at));
if (at == NULL)
{

35
SOURCES/glibc-RHEL-17319-1.patch
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commit b893410be304ddcea0bd43f537a13e8b18d37cf2
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Nov 27 11:28:07 2023 +0100
elf: In _dl_relocate_object, skip processing if object is relocated
This is just a minor optimization. It also makes it more obvious that
_dl_relocate_object can be called multiple times.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c
index be3e09e36835ed23..0254e589c06fbf4c 100644
--- a/elf/dl-reloc.c
+++ b/elf/dl-reloc.c
@@ -192,6 +192,9 @@ void
_dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
int reloc_mode, int consider_profiling)
{
+ if (l->l_relocated)
+ return;
+
struct textrels
{
caddr_t start;
@@ -229,9 +232,6 @@ _dl_relocate_object (struct link_map *l, struct r_scope_elem *scope[],
# define consider_symbind 0
#endif
- if (l->l_relocated)
- return;
-
/* If DT_BIND_NOW is set relocate all references in this object. We
do not do this if we are profiling, of course. */
// XXX Correct for auditing?

121
SOURCES/glibc-RHEL-17319-2.patch
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commit a74c2e1cbc8673dd7e97aae2f2705392e2ccc3f6
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Nov 27 11:28:10 2023 +0100
elf: Introduce the _dl_open_relocate_one_object function
It is extracted from dl_open_worker_begin.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/elf/dl-open.c b/elf/dl-open.c
index c8a5d88161441031..cf3baccccb461878 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -467,6 +467,50 @@ activate_nodelete (struct link_map *new)
}
}
+/* Relocate the object L. *RELOCATION_IN_PROGRESS controls whether
+ the debugger is notified of the start of relocation processing. */
+static void
+_dl_open_relocate_one_object (struct dl_open_args *args, struct r_debug *r,
+ struct link_map *l, int reloc_mode,
+ bool *relocation_in_progress)
+{
+ if (l->l_real->l_relocated)
+ return;
+
+ if (!*relocation_in_progress)
+ {
+ /* Notify the debugger that relocations are about to happen. */
+ LIBC_PROBE (reloc_start, 2, args->nsid, r);
+ *relocation_in_progress = true;
+ }
+
+#ifdef SHARED
+ if (__glibc_unlikely (GLRO(dl_profile) != NULL))
+ {
+ /* If this here is the shared object which we want to profile
+ make sure the profile is started. We can find out whether
+ this is necessary or not by observing the `_dl_profile_map'
+ variable. If it was NULL but is not NULL afterwards we must
+ start the profiling. */
+ struct link_map *old_profile_map = GL(dl_profile_map);
+
+ _dl_relocate_object (l, l->l_scope, reloc_mode | RTLD_LAZY, 1);
+
+ if (old_profile_map == NULL && GL(dl_profile_map) != NULL)
+ {
+ /* We must prepare the profiling. */
+ _dl_start_profile ();
+
+ /* Prevent unloading the object. */
+ GL(dl_profile_map)->l_nodelete_active = true;
+ }
+ }
+ else
+#endif
+ _dl_relocate_object (l, l->l_scope, reloc_mode, 0);
+}
+
+
/* struct dl_init_args and call_dl_init are used to call _dl_init with
exception handling disabled. */
struct dl_init_args
@@ -651,7 +695,7 @@ dl_open_worker_begin (void *a)
}
while (l != NULL);
- int relocation_in_progress = 0;
+ bool relocation_in_progress = false;
/* Perform relocation. This can trigger lazy binding in IFUNC
resolvers. For NODELETE mappings, these dependencies are not
@@ -662,44 +706,8 @@ dl_open_worker_begin (void *a)
are undefined anyway, so this is not a problem. */
for (unsigned int i = last; i-- > first; )
- {
- l = new->l_initfini[i];
-
- if (l->l_real->l_relocated)
- continue;
-
- if (! relocation_in_progress)
- {
- /* Notify the debugger that relocations are about to happen. */
- LIBC_PROBE (reloc_start, 2, args->nsid, r);
- relocation_in_progress = 1;
- }
-
-#ifdef SHARED
- if (__glibc_unlikely (GLRO(dl_profile) != NULL))
- {
- /* If this here is the shared object which we want to profile
- make sure the profile is started. We can find out whether
- this is necessary or not by observing the `_dl_profile_map'
- variable. If it was NULL but is not NULL afterwards we must
- start the profiling. */
- struct link_map *old_profile_map = GL(dl_profile_map);
-
- _dl_relocate_object (l, l->l_scope, reloc_mode | RTLD_LAZY, 1);
-
- if (old_profile_map == NULL && GL(dl_profile_map) != NULL)
- {
- /* We must prepare the profiling. */
- _dl_start_profile ();
-
- /* Prevent unloading the object. */
- GL(dl_profile_map)->l_nodelete_active = true;
- }
- }
- else
-#endif
- _dl_relocate_object (l, l->l_scope, reloc_mode, 0);
- }
+ _dl_open_relocate_one_object (args, r, new->l_initfini[i], reloc_mode,
+ &relocation_in_progress);
/* This only performs the memory allocations. The actual update of
the scopes happens below, after failure is impossible. */

224
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commit 78ca44da0160a0b442f0ca1f253e3360f044b2ec
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Nov 27 11:28:13 2023 +0100
elf: Relocate libc.so early during startup and dlmopen (bug 31083)
This makes it more likely that objects without dependencies can
use IFUNC resolvers in libc.so.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Conflicts:
elf/Makefile
(test backport differences)
elf/rtld.c
(prelink support was removed upstream)
diff --git a/elf/Makefile b/elf/Makefile
index 8e1f91bcd917fd4e..7b7c6c171ce23247 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -419,6 +419,8 @@ tests += \
tst-nodelete2 \
tst-nodelete-dlclose \
tst-nodelete-opened \
+ tst-nodeps1 \
+ tst-nodeps2 \
tst-noload \
tst-null-argv \
tst-relsort1 \
@@ -777,6 +779,8 @@ modules-names = \
tst-nodelete-dlclose-dso \
tst-nodelete-dlclose-plugin \
tst-nodelete-opened-lib \
+ tst-nodeps1-mod \
+ tst-nodeps2-mod \
tst-null-argv-lib \
tst-relsort1mod1 \
tst-relsort1mod2 \
@@ -931,8 +935,15 @@ extra-test-objs += $(addsuffix .os,$(strip $(modules-names)))
# filtmod1.so, tst-big-note-lib.so, tst-ro-dynamic-mod.so have special
# rules.
-modules-names-nobuild := filtmod1 tst-big-note-lib tst-ro-dynamic-mod \
- tst-audit24bmod1 tst-audit24bmod2
+modules-names-nobuild += \
+ filtmod1 \
+ tst-audit24bmod1 \
+ tst-audit24bmod2 \
+ tst-big-note-lib \
+ tst-nodeps1-mod \
+ tst-nodeps2-mod \
+ tst-ro-dynamic-mod \
+ # modules-names-nobuild
tests += $(tests-static)
@@ -2684,3 +2695,18 @@ LDFLAGS-tst-dlclose-lazy-mod1.so = -Wl,-z,lazy,--no-as-needed
$(objpfx)tst-dlclose-lazy-mod1.so: $(objpfx)tst-dlclose-lazy-mod2.so
$(objpfx)tst-dlclose-lazy.out: \
$(objpfx)tst-dlclose-lazy-mod1.so $(objpfx)tst-dlclose-lazy-mod2.so
+
+# The object tst-nodeps1-mod.so has no explicit dependencies on libc.so.
+$(objpfx)tst-nodeps1-mod.so: $(objpfx)tst-nodeps1-mod.os
+ $(LINK.o) -nostartfiles -nostdlib -shared -o $@ $^
+tst-nodeps1.so-no-z-defs = yes
+# Link libc.so before the test module with the IFUNC resolver reference.
+LDFLAGS-tst-nodeps1 = $(common-objpfx)libc.so $(objpfx)tst-nodeps1-mod.so
+$(objpfx)tst-nodeps1: $(objpfx)tst-nodeps1-mod.so
+# Reuse the tst-nodeps1 module. Link libc.so before the test module
+# with the IFUNC resolver reference.
+$(objpfx)tst-nodeps2-mod.so: $(common-objpfx)libc.so \
+ $(objpfx)tst-nodeps1-mod.so $(objpfx)tst-nodeps2-mod.os
+ $(LINK.o) -Wl,--no-as-needed -nostartfiles -nostdlib -shared -o $@ $^
+$(objpfx)tst-nodeps2.out: \
+ $(objpfx)tst-nodeps1-mod.so $(objpfx)tst-nodeps2-mod.so
diff --git a/elf/dl-open.c b/elf/dl-open.c
index cf3baccccb461878..4b58bdd668634130 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -705,6 +705,17 @@ dl_open_worker_begin (void *a)
them. However, such relocation dependencies in IFUNC resolvers
are undefined anyway, so this is not a problem. */
+ /* Ensure that libc is relocated first. This helps with the
+ execution of IFUNC resolvers in libc, and matters only to newly
+ created dlmopen namespaces. Do not do this for static dlopen
+ because libc has relocations against ld.so, which may not have
+ been relocated at this point. */
+#ifdef SHARED
+ if (GL(dl_ns)[args->nsid].libc_map != NULL)
+ _dl_open_relocate_one_object (args, r, GL(dl_ns)[args->nsid].libc_map,
+ reloc_mode, &relocation_in_progress);
+#endif
+
for (unsigned int i = last; i-- > first; )
_dl_open_relocate_one_object (args, r, new->l_initfini[i], reloc_mode,
&relocation_in_progress);
diff --git a/elf/rtld.c b/elf/rtld.c
index 9de53ccaed420a57..a638d14e77745baa 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -2421,11 +2421,17 @@ dl_main (const ElfW(Phdr) *phdr,
objects. We do not re-relocate the dynamic linker itself in this
loop because that could result in the GOT entries for functions we
call being changed, and that would break us. It is safe to relocate
- the dynamic linker out of order because it has no copy relocs (we
- know that because it is self-contained). */
+ the dynamic linker out of order because it has no copy relocations.
+ Likewise for libc, which is relocated early to ensure that IFUNC
+ resolvers in libc work. */
int consider_profiling = GLRO(dl_profile) != NULL;
+ if (GL(dl_ns)[LM_ID_BASE].libc_map != NULL)
+ _dl_relocate_object (GL(dl_ns)[LM_ID_BASE].libc_map,
+ GL(dl_ns)[LM_ID_BASE].libc_map->l_scope,
+ GLRO(dl_lazy) ? RTLD_LAZY : 0, consider_profiling);
+
/* If we are profiling we also must do lazy reloaction. */
GLRO(dl_lazy) |= consider_profiling;
diff --git a/elf/tst-nodeps1-mod.c b/elf/tst-nodeps1-mod.c
new file mode 100644
index 0000000000000000..45c8e3c631251a89
--- /dev/null
+++ b/elf/tst-nodeps1-mod.c
@@ -0,0 +1,25 @@
+/* Test module with no libc.so dependency and string function references.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <string.h>
+
+/* Some references to libc symbols which are likely to have IFUNC
+ resolvers. If they do not, this module does not exercise bug 31083. */
+void *memcpy_pointer = memcpy;
+void *memmove_pointer = memmove;
+void *memset_pointer = memset;
diff --git a/elf/tst-nodeps1.c b/elf/tst-nodeps1.c
new file mode 100644
index 0000000000000000..1a8bde36cdb71446
--- /dev/null
+++ b/elf/tst-nodeps1.c
@@ -0,0 +1,23 @@
+/* Test initially loaded module with implicit libc.so dependency (bug 31083).
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* Testing happens before main. */
+int
+main (void)
+{
+}
diff --git a/elf/tst-nodeps2-mod.c b/elf/tst-nodeps2-mod.c
new file mode 100644
index 0000000000000000..4913feee9b56e0e1
--- /dev/null
+++ b/elf/tst-nodeps2-mod.c
@@ -0,0 +1 @@
+/* Empty test module which depends on tst-nodeps1-mod.so. */
diff --git a/elf/tst-nodeps2.c b/elf/tst-nodeps2.c
new file mode 100644
index 0000000000000000..0bdc8eeb8cba3a99
--- /dev/null
+++ b/elf/tst-nodeps2.c
@@ -0,0 +1,29 @@
+/* Test dlmopen with implicit libc.so dependency (bug 31083).
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <support/xdlfcn.h>
+
+static int
+do_test (void)
+{
+ void *handle = xdlmopen (LM_ID_NEWLM, "tst-nodeps2-mod.so", RTLD_NOW);
+ xdlclose (handle);
+ return 0;
+}
+
+#include <support/test-driver.c>

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SOURCES/glibc-RHEL-17319-4.patch
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commit b3bee76c5f59498b9c189608f0a3132e2013fa1a
Author: Florian Weimer <fweimer@redhat.com>
Date: Fri Dec 8 09:51:34 2023 +0100
elf: Initialize GLRO(dl_lazy) before relocating libc in dynamic startup
GLRO(dl_lazy) is used to set the parameters for the early
_dl_relocate_object call, so the consider_profiling setting has to
be applied before the call.
Fixes commit 78ca44da0160a0b442f0ca1f253e3360f044b2ec ("elf: Relocate
libc.so early during startup and dlmopen (bug 31083)").
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Conflicts:
elf/rtld.c
(prelink was removed upstream)
diff --git a/elf/rtld.c b/elf/rtld.c
index a638d14e77745baa..d973c385b312ea16 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -2427,14 +2427,14 @@ dl_main (const ElfW(Phdr) *phdr,
int consider_profiling = GLRO(dl_profile) != NULL;
+ /* If we are profiling we also must do lazy reloaction. */
+ GLRO(dl_lazy) |= consider_profiling;
+
if (GL(dl_ns)[LM_ID_BASE].libc_map != NULL)
_dl_relocate_object (GL(dl_ns)[LM_ID_BASE].libc_map,
GL(dl_ns)[LM_ID_BASE].libc_map->l_scope,
GLRO(dl_lazy) ? RTLD_LAZY : 0, consider_profiling);
- /* If we are profiling we also must do lazy reloaction. */
- GLRO(dl_lazy) |= consider_profiling;
-
RTLD_TIMING_VAR (start);
rtld_timer_start (&start);
unsigned i = main_map->l_searchlist.r_nlist;

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SOURCES/glibc-RHEL-17465-1.patch
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commit 3921c5b40f293c57cb326f58713c924b0662ef59
Author: Hector Martin <marcan@marcan.st>
Date: Tue Nov 28 15:23:07 2023 +0900
elf: Fix TLS modid reuse generation assignment (BZ 29039)
_dl_assign_tls_modid() assigns a slotinfo entry for a new module, but
does *not* do anything to the generation counter. The first time this
happens, the generation is zero and map_generation() returns the current
generation to be used during relocation processing. However, if
a slotinfo entry is later reused, it will already have a generation
assigned. If this generation has fallen behind the current global max
generation, then this causes an obsolete generation to be assigned
during relocation processing, as map_generation() returns this
generation if nonzero. _dl_add_to_slotinfo() eventually resets the
generation, but by then it is too late. This causes DTV updates to be
skipped, leading to NULL or broken TLS slot pointers and segfaults.
Fix this by resetting the generation to zero in _dl_assign_tls_modid(),
so it behaves the same as the first time a slot is assigned.
_dl_add_to_slotinfo() will still assign the correct static generation
later during module load, but relocation processing will no longer use
an obsolete generation.
Note that slotinfo entry (aka modid) reuse typically happens after a
dlclose and only TLS access via dynamic tlsdesc is affected. Because
tlsdesc is optimized to use the optional part of static TLS, dynamic
tlsdesc can be avoided by increasing the glibc.rtld.optional_static_tls
tunable to a large enough value, or by LD_PRELOAD-ing the affected
modules.
Fixes bug 29039.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
diff --git a/elf/dl-tls.c b/elf/dl-tls.c
index b8ada16f1637c910..b9dc56e81a3b43db 100644
--- a/elf/dl-tls.c
+++ b/elf/dl-tls.c
@@ -160,6 +160,7 @@ _dl_assign_tls_modid (struct link_map *l)
{
/* Mark the entry as used, so any dependency see it. */
atomic_store_relaxed (&runp->slotinfo[result - disp].map, l);
+ atomic_store_relaxed (&runp->slotinfo[result - disp].gen, 0);
break;
}

198
SOURCES/glibc-RHEL-17465-2.patch
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commit 980450f12685326729d63ff72e93a996113bf073
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed Nov 29 11:31:37 2023 +0000
elf: Add TLS modid reuse test for bug 29039
This is a minimal regression test for bug 29039 which only affects
targets with TLSDESC and a reproducer requires that
1) Have modid gaps (closed modules) with old generation.
2) Update a DTV to a newer generation (needs a newer dlopen).
3) But do not update the closed gap entry in that DTV.
4) Reuse the modid gap for a new module (another dlopen).
5) Use dynamic TLSDESC in that new module with old generation (bug).
6) Access TLS via this TLSDESC and the now outdated DTV.
However step (3) in practice rarely happens: during DTV update the
entries for closed modids are initialized to "unallocated" and then
dynamic TLSDESC calls __tls_get_addr independently of its generation.
The only exception to this is DTV setup at thread creation (gaps are
initialized to NULL instead of unallocated) or DTV resize where the
gap entries are outside the previous DTV array (again NULL instead
of unallocated, and this requires loading > DTV_SURPLUS modules).
So the bug can only cause NULL (+ offset) dereference, not use after
free. And the easiest way to get (3) is via thread creation.
Note that step (5) requires that the newly loaded module has larger
TLS than the remaining optional static TLS. And for (6) there cannot
be other TLS access or dlopen in the thread that updates the DTV.
Tested on aarch64-linux-gnu.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Conflicts:
elf/Makefile
(Resolve test case ordering conflict.)
diff --git a/elf/Makefile b/elf/Makefile
index 7b7c6c171ce23247..7d55e68a55b54bd6 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -447,6 +447,7 @@ tests += \
tst-tls5 \
tst-tlsalign \
tst-tlsalign-extern \
+ tst-tlsgap \
tst-tls-dlinfo \
tst-tls-ie \
tst-tls-ie-dlmopen \
@@ -798,6 +799,9 @@ modules-names = \
tst-tls20mod-bad \
tst-tls21mod \
tst-tlsalign-lib \
+ tst-tlsgap-mod0 \
+ tst-tlsgap-mod1 \
+ tst-tlsgap-mod2 \
tst-tls-ie-mod0 \
tst-tls-ie-mod1 \
tst-tls-ie-mod2 \
@@ -2710,3 +2714,14 @@ $(objpfx)tst-nodeps2-mod.so: $(common-objpfx)libc.so \
$(LINK.o) -Wl,--no-as-needed -nostartfiles -nostdlib -shared -o $@ $^
$(objpfx)tst-nodeps2.out: \
$(objpfx)tst-nodeps1-mod.so $(objpfx)tst-nodeps2-mod.so
+
+$(objpfx)tst-tlsgap: $(shared-thread-library)
+$(objpfx)tst-tlsgap.out: \
+ $(objpfx)tst-tlsgap-mod0.so \
+ $(objpfx)tst-tlsgap-mod1.so \
+ $(objpfx)tst-tlsgap-mod2.so
+ifeq (yes,$(have-mtls-dialect-gnu2))
+CFLAGS-tst-tlsgap-mod0.c += -mtls-dialect=gnu2
+CFLAGS-tst-tlsgap-mod1.c += -mtls-dialect=gnu2
+CFLAGS-tst-tlsgap-mod2.c += -mtls-dialect=gnu2
+endif
diff --git a/elf/tst-tlsgap-mod0.c b/elf/tst-tlsgap-mod0.c
new file mode 100644
index 0000000000000000..1478b0beac5faf98
--- /dev/null
+++ b/elf/tst-tlsgap-mod0.c
@@ -0,0 +1,2 @@
+int __thread tls0;
+int *f0(void) { return &tls0; }
diff --git a/elf/tst-tlsgap-mod1.c b/elf/tst-tlsgap-mod1.c
new file mode 100644
index 0000000000000000..b10fc3702c43e478
--- /dev/null
+++ b/elf/tst-tlsgap-mod1.c
@@ -0,0 +1,2 @@
+int __thread tls1[100]; /* Size > glibc.rtld.optional_static_tls / 2. */
+int *f1(void) { return tls1; }
diff --git a/elf/tst-tlsgap-mod2.c b/elf/tst-tlsgap-mod2.c
new file mode 100644
index 0000000000000000..166c27d7f3fac252
--- /dev/null
+++ b/elf/tst-tlsgap-mod2.c
@@ -0,0 +1,2 @@
+int __thread tls2;
+int *f2(void) { return &tls2; }
diff --git a/elf/tst-tlsgap.c b/elf/tst-tlsgap.c
new file mode 100644
index 0000000000000000..49328850769c5609
--- /dev/null
+++ b/elf/tst-tlsgap.c
@@ -0,0 +1,92 @@
+/* TLS modid gap reuse regression test for bug 29039.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <dlfcn.h>
+#include <pthread.h>
+#include <support/xdlfcn.h>
+#include <support/xthread.h>
+#include <support/check.h>
+
+static void *mod[3];
+#define MOD(i) "tst-tlsgap-mod" #i ".so"
+static const char *modname[3] = { MOD(0), MOD(1), MOD(2) };
+#undef MOD
+
+static void
+open_mod (int i)
+{
+ mod[i] = xdlopen (modname[i], RTLD_LAZY);
+ printf ("open %s\n", modname[i]);
+}
+
+static void
+close_mod (int i)
+{
+ xdlclose (mod[i]);
+ mod[i] = NULL;
+ printf ("close %s\n", modname[i]);
+}
+
+static void
+access_mod (int i, const char *sym)
+{
+ int *(*f) (void) = xdlsym (mod[i], sym);
+ int *p = f ();
+ printf ("access %s: %s() = %p\n", modname[i], sym, p);
+ TEST_VERIFY_EXIT (p != NULL);
+ ++*p;
+}
+
+static void *
+start (void *arg)
+{
+ /* The DTV generation is at the last dlopen of mod0 and the
+ entry for mod1 is NULL. */
+
+ open_mod (1); /* Reuse modid of mod1. Uses dynamic TLS. */
+
+ /* DTV is unchanged: dlopen only updates the DTV to the latest
+ generation if static TLS is allocated for a loaded module.
+
+ With bug 29039, the TLSDESC relocation in mod1 uses the old
+ dlclose generation of mod1 instead of the new dlopen one so
+ DTV is not updated on TLS access. */
+
+ access_mod (1, "f1");
+
+ return arg;
+}
+
+static int
+do_test (void)
+{
+ open_mod (0);
+ open_mod (1);
+ open_mod (2);
+ close_mod (0);
+ close_mod (1); /* Create modid gap at mod1. */
+ open_mod (0); /* Reuse modid of mod0, bump generation count. */
+
+ /* Create a thread where DTV of mod1 is NULL. */
+ pthread_t t = xpthread_create (NULL, start, NULL);
+ xpthread_join (t);
+ return 0;
+}
+
+#include <support/test-driver.c>

29
SOURCES/glibc-RHEL-19444.patch
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commit 5eabdb6a6ac1599d23dd5966a37417215950245f
Author: Andreas Schwab <schwab@suse.de>
Date: Wed Dec 6 14:48:22 2023 +0100
getaddrinfo: translate ENOMEM to EAI_MEMORY (bug 31163)
When __resolv_context_get returns NULL due to out of memory, translate it
to a return value of EAI_MEMORY.
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 321a6679d46494a3..8fe879c5420337a4 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -615,7 +615,14 @@ get_nss_addresses (const char *name, const struct addrinfo *req,
function variant. */
res_ctx = __resolv_context_get ();
if (res_ctx == NULL)
- no_more = 1;
+ {
+ if (errno == ENOMEM)
+ {
+ result = -EAI_MEMORY;
+ goto out;
+ }
+ no_more = 1;
+ }
while (!no_more)
{

27
SOURCES/glibc-RHEL-19862.patch
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commit ecc7c3deb9f347649c2078fcc0f94d4cedf92d60
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Jan 2 14:36:17 2024 +0100
libio: Check remaining buffer size in _IO_wdo_write (bug 31183)
The multibyte character needs to fit into the remaining buffer space,
not the already-written buffer space. Without the fix, we were never
moving the write pointer from the start of the buffer, always using
the single-character fallback buffer.
Fixes commit 04b76b5aa8b2d1d19066e42dd1 ("Don't error out writing
a multibyte character to an unbuffered stream (bug 17522)").
diff --git a/libio/wfileops.c b/libio/wfileops.c
index 37f44780f811bd38..6cbc3c7c968f9136 100644
--- a/libio/wfileops.c
+++ b/libio/wfileops.c
@@ -57,7 +57,7 @@ _IO_wdo_write (FILE *fp, const wchar_t *data, size_t to_do)
char mb_buf[MB_LEN_MAX];
char *write_base, *write_ptr, *buf_end;
- if (fp->_IO_write_ptr - fp->_IO_write_base < sizeof (mb_buf))
+ if (fp->_IO_buf_end - fp->_IO_write_ptr < sizeof (mb_buf))
{
/* Make sure we have room for at least one multibyte
character. */

317
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@ -0,0 +1,317 @@
commit d2123d68275acc0f061e73d5f86ca504e0d5a344
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Tue Feb 16 12:55:13 2021 +0000
elf: Fix slow tls access after dlopen [BZ #19924]
In short: __tls_get_addr checks the global generation counter and if
the current dtv is older then _dl_update_slotinfo updates dtv up to the
generation of the accessed module. So if the global generation is newer
than generation of the module then __tls_get_addr keeps hitting the
slow dtv update path. The dtv update path includes a number of checks
to see if any update is needed and this already causes measurable tls
access slow down after dlopen.
It may be possible to detect up-to-date dtv faster. But if there are
many modules loaded (> TLS_SLOTINFO_SURPLUS) then this requires at
least walking the slotinfo list.
This patch tries to update the dtv to the global generation instead, so
after a dlopen the tls access slow path is only hit once. The modules
with larger generation than the accessed one were not necessarily
synchronized before, so additional synchronization is needed.
This patch uses acquire/release synchronization when accessing the
generation counter.
Note: in the x86_64 version of dl-tls.c the generation is only loaded
once, since relaxed mo is not faster than acquire mo load.
I have not benchmarked this. Tested by Adhemerval Zanella on aarch64,
powerpc, sparc, x86 who reported that it fixes the performance issue
of bug 19924.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 985cd4e2821436af..95a03c9616c6a786 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -739,7 +739,7 @@ _dl_close_worker (struct link_map *map, bool force)
if (__glibc_unlikely (newgen == 0))
_dl_fatal_printf ("TLS generation counter wrapped! Please report as described in "REPORT_BUGS_TO".\n");
/* Can be read concurrently. */
- atomic_store_relaxed (&GL(dl_tls_generation), newgen);
+ atomic_store_release (&GL(dl_tls_generation), newgen);
if (tls_free_end == GL(dl_tls_static_used))
GL(dl_tls_static_used) = tls_free_start;
diff --git a/elf/dl-open.c b/elf/dl-open.c
index 633b047ad2497296..c8a5d88161441031 100644
--- a/elf/dl-open.c
+++ b/elf/dl-open.c
@@ -404,7 +404,7 @@ update_tls_slotinfo (struct link_map *new)
_dl_fatal_printf (N_("\
TLS generation counter wrapped! Please report this."));
/* Can be read concurrently. */
- atomic_store_relaxed (&GL(dl_tls_generation), newgen);
+ atomic_store_release (&GL(dl_tls_generation), newgen);
/* We need a second pass for static tls data, because
_dl_update_slotinfo must not be run while calls to
@@ -421,8 +421,8 @@ TLS generation counter wrapped! Please report this."));
now, but we can delay updating the DTV. */
imap->l_need_tls_init = 0;
#ifdef SHARED
- /* Update the slot information data for at least the
- generation of the DSO we are allocating data for. */
+ /* Update the slot information data for the current
+ generation. */
/* FIXME: This can terminate the process on memory
allocation failure. It is not possible to raise
@@ -430,7 +430,7 @@ TLS generation counter wrapped! Please report this."));
_dl_update_slotinfo would have to be split into two
operations, similar to resize_scopes and update_scopes
above. This is related to bug 16134. */
- _dl_update_slotinfo (imap->l_tls_modid);
+ _dl_update_slotinfo (imap->l_tls_modid, newgen);
#endif
dl_init_static_tls (imap);
diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c
index 5b69321bda1f2b27..be3e09e36835ed23 100644
--- a/elf/dl-reloc.c
+++ b/elf/dl-reloc.c
@@ -111,11 +111,11 @@ _dl_try_allocate_static_tls (struct link_map *map, bool optional)
if (map->l_real->l_relocated)
{
#ifdef SHARED
+ /* Update the DTV of the current thread. Note: GL(dl_load_tls_lock)
+ is held here so normal load of the generation counter is valid. */
if (__builtin_expect (THREAD_DTV()[0].counter != GL(dl_tls_generation),
0))
- /* Update the slot information data for at least the generation of
- the DSO we are allocating data for. */
- (void) _dl_update_slotinfo (map->l_tls_modid);
+ (void) _dl_update_slotinfo (map->l_tls_modid, GL(dl_tls_generation));
#endif
dl_init_static_tls (map);
diff --git a/elf/dl-tls.c b/elf/dl-tls.c
index fab6546e2d31edd4..b8ada16f1637c910 100644
--- a/elf/dl-tls.c
+++ b/elf/dl-tls.c
@@ -721,57 +721,57 @@ allocate_and_init (struct link_map *map)
struct link_map *
-_dl_update_slotinfo (unsigned long int req_modid)
+_dl_update_slotinfo (unsigned long int req_modid, size_t new_gen)
{
struct link_map *the_map = NULL;
dtv_t *dtv = THREAD_DTV ();
- /* The global dl_tls_dtv_slotinfo array contains for each module
- index the generation counter current when the entry was created.
+ /* CONCURRENCY NOTES:
+
+ The global dl_tls_dtv_slotinfo_list array contains for each module
+ index the generation counter current when that entry was updated.
This array never shrinks so that all module indices which were
- valid at some time can be used to access it. Before the first
- use of a new module index in this function the array was extended
- appropriately. Access also does not have to be guarded against
- modifications of the array. It is assumed that pointer-size
- values can be read atomically even in SMP environments. It is
- possible that other threads at the same time dynamically load
- code and therefore add to the slotinfo list. This is a problem
- since we must not pick up any information about incomplete work.
- The solution to this is to ignore all dtv slots which were
- created after the one we are currently interested. We know that
- dynamic loading for this module is completed and this is the last
- load operation we know finished. */
- unsigned long int idx = req_modid;
+ valid at some time can be used to access it. Concurrent loading
+ and unloading of modules can update slotinfo entries or extend
+ the array. The updates happen under the GL(dl_load_tls_lock) and
+ finish with the release store of the generation counter to
+ GL(dl_tls_generation) which is synchronized with the load of
+ new_gen in the caller. So updates up to new_gen are synchronized
+ but updates for later generations may not be.
+
+ Here we update the thread dtv from old_gen (== dtv[0].counter) to
+ new_gen generation. For this, each dtv[i] entry is either set to
+ an unallocated state (set), or left unmodified (nop). Where (set)
+ may resize the dtv first if modid i >= dtv[-1].counter. The rules
+ for the decision between (set) and (nop) are
+
+ (1) If slotinfo entry i is concurrently updated then either (set)
+ or (nop) is valid: TLS access cannot use dtv[i] unless it is
+ synchronized with a generation > new_gen.
+
+ Otherwise, if the generation of slotinfo entry i is gen and the
+ loaded module for this entry is map then
+
+ (2) If gen <= old_gen then do (nop).
+
+ (3) If old_gen < gen <= new_gen then
+ (3.1) if map != 0 then (set)
+ (3.2) if map == 0 then either (set) or (nop).
+
+ Note that (1) cannot be reliably detected, but since both actions
+ are valid it does not have to be. Only (2) and (3.1) cases need
+ to be distinguished for which relaxed mo access of gen and map is
+ enough: their value is synchronized when it matters.
+
+ Note that a relaxed mo load may give an out-of-thin-air value since
+ it is used in decisions that can affect concurrent stores. But this
+ should only happen if the OOTA value causes UB that justifies the
+ concurrent store of the value. This is not expected to be an issue
+ in practice. */
struct dtv_slotinfo_list *listp = GL(dl_tls_dtv_slotinfo_list);
- while (idx >= listp->len)
+ if (dtv[0].counter < new_gen)
{
- idx -= listp->len;
- listp = listp->next;
- }
-
- if (dtv[0].counter < listp->slotinfo[idx].gen)
- {
- /* CONCURRENCY NOTES:
-
- Here the dtv needs to be updated to new_gen generation count.
-
- This code may be called during TLS access when GL(dl_load_tls_lock)
- is not held. In that case the user code has to synchronize with
- dlopen and dlclose calls of relevant modules. A module m is
- relevant if the generation of m <= new_gen and dlclose of m is
- synchronized: a memory access here happens after the dlopen and
- before the dlclose of relevant modules. The dtv entries for
- relevant modules need to be updated, other entries can be
- arbitrary.
-
- This e.g. means that the first part of the slotinfo list can be
- accessed race free, but the tail may be concurrently extended.
- Similarly relevant slotinfo entries can be read race free, but
- other entries are racy. However updating a non-relevant dtv
- entry does not affect correctness. For a relevant module m,
- max_modid >= modid of m. */
- size_t new_gen = listp->slotinfo[idx].gen;
size_t total = 0;
size_t max_modid = atomic_load_relaxed (&GL(dl_tls_max_dtv_idx));
assert (max_modid >= req_modid);
@@ -784,31 +784,33 @@ _dl_update_slotinfo (unsigned long int req_modid)
{
size_t modid = total + cnt;
- /* Later entries are not relevant. */
+ /* Case (1) for all later modids. */
if (modid > max_modid)
break;
size_t gen = atomic_load_relaxed (&listp->slotinfo[cnt].gen);
+ /* Case (1). */
if (gen > new_gen)
- /* Not relevant. */
continue;
- /* If the entry is older than the current dtv layout we
- know we don't have to handle it. */
+ /* Case (2) or (1). */
if (gen <= dtv[0].counter)
continue;
+ /* Case (3) or (1). */
+
/* If there is no map this means the entry is empty. */
struct link_map *map
= atomic_load_relaxed (&listp->slotinfo[cnt].map);
/* Check whether the current dtv array is large enough. */
if (dtv[-1].counter < modid)
{
+ /* Case (3.2) or (1). */
if (map == NULL)
continue;
- /* Resize the dtv. */
+ /* Resizing the dtv aborts on failure: bug 16134. */
dtv = _dl_resize_dtv (dtv, max_modid);
assert (modid <= dtv[-1].counter);
@@ -819,7 +821,7 @@ _dl_update_slotinfo (unsigned long int req_modid)
}
/* If there is currently memory allocate for this
- dtv entry free it. */
+ dtv entry free it. Note: this is not AS-safe. */
/* XXX Ideally we will at some point create a memory
pool. */
free (dtv[modid].pointer.to_free);
@@ -914,9 +916,9 @@ tls_get_addr_tail (GET_ADDR_ARGS, dtv_t *dtv, struct link_map *the_map)
static struct link_map *
__attribute_noinline__
-update_get_addr (GET_ADDR_ARGS)
+update_get_addr (GET_ADDR_ARGS, size_t gen)
{
- struct link_map *the_map = _dl_update_slotinfo (GET_ADDR_MODULE);
+ struct link_map *the_map = _dl_update_slotinfo (GET_ADDR_MODULE, gen);
dtv_t *dtv = THREAD_DTV ();
void *p = dtv[GET_ADDR_MODULE].pointer.val;
@@ -946,12 +948,17 @@ __tls_get_addr (GET_ADDR_ARGS)
dtv_t *dtv = THREAD_DTV ();
/* Update is needed if dtv[0].counter < the generation of the accessed
- module. The global generation counter is used here as it is easier
- to check. Synchronization for the relaxed MO access is guaranteed
- by user code, see CONCURRENCY NOTES in _dl_update_slotinfo. */
+ module, but the global generation counter is easier to check (which
+ must be synchronized up to the generation of the accessed module by
+ user code doing the TLS access so relaxed mo read is enough). */
size_t gen = atomic_load_relaxed (&GL(dl_tls_generation));
if (__glibc_unlikely (dtv[0].counter != gen))
- return update_get_addr (GET_ADDR_PARAM);
+ {
+ /* Update DTV up to the global generation, see CONCURRENCY NOTES
+ in _dl_update_slotinfo. */
+ gen = atomic_load_acquire (&GL(dl_tls_generation));
+ return update_get_addr (GET_ADDR_PARAM, gen);
+ }
void *p = dtv[GET_ADDR_MODULE].pointer.val;
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index 8c0fe98f69a88f1e..7964e133e4930e88 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -1304,7 +1304,8 @@ extern void _dl_add_to_slotinfo (struct link_map *l, bool do_add)
/* Update slot information data for at least the generation of the
module with the given index. */
-extern struct link_map *_dl_update_slotinfo (unsigned long int req_modid)
+extern struct link_map *_dl_update_slotinfo (unsigned long int req_modid,
+ size_t gen)
attribute_hidden;
/* Look up the module's TLS block as for __tls_get_addr,
diff --git a/sysdeps/x86_64/dl-tls.c b/sysdeps/x86_64/dl-tls.c
index 24ef560b718275a2..4ded8dd6b94edc81 100644
--- a/sysdeps/x86_64/dl-tls.c
+++ b/sysdeps/x86_64/dl-tls.c
@@ -40,9 +40,9 @@ __tls_get_addr_slow (GET_ADDR_ARGS)
{
dtv_t *dtv = THREAD_DTV ();
- size_t gen = atomic_load_relaxed (&GL(dl_tls_generation));
+ size_t gen = atomic_load_acquire (&GL(dl_tls_generation));
if (__glibc_unlikely (dtv[0].counter != gen))
- return update_get_addr (GET_ADDR_PARAM);
+ return update_get_addr (GET_ADDR_PARAM, gen);
return tls_get_addr_tail (GET_ADDR_PARAM, dtv, NULL);
}

33
SOURCES/glibc-RHEL-21556.patch
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commit c06c8aeb61708249d8eb0b17a676d16771ea640b
Author: Dennis Brendel <dbrendel@redhat.com>
Date: Mon Jan 15 09:55:37 2024 +0100
manual: fix order of arguments of memalign and aligned_alloc (Bug 27547)
On the summary page the order of the function arguments was reversed, but it is
in correct order in the other places of the manual.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
diff --git a/manual/memory.texi b/manual/memory.texi
index fb875f4c3c..3710d7ec66 100644
--- a/manual/memory.texi
+++ b/manual/memory.texi
@@ -1502,7 +1502,7 @@ Space}.
Allocate a block of @var{size} bytes, starting on a page boundary.
@xref{Aligned Memory Blocks}.
-@item void *aligned_alloc (size_t @var{size}, size_t @var{alignment})
+@item void *aligned_alloc (size_t @var{alignment}, size_t @var{size})
Allocate a block of @var{size} bytes, starting on an address that is a
multiple of @var{alignment}. @xref{Aligned Memory Blocks}.
@@ -1510,7 +1510,7 @@ multiple of @var{alignment}. @xref{Aligned Memory Blocks}.
Allocate a block of @var{size} bytes, starting on an address that is a
multiple of @var{alignment}. @xref{Aligned Memory Blocks}.
-@item void *memalign (size_t @var{size}, size_t @var{boundary})
+@item void *memalign (size_t @var{boundary}, size_t @var{size})
Allocate a block of @var{size} bytes, starting on an address that is a
multiple of @var{boundary}. @xref{Aligned Memory Blocks}.

47
SOURCES/glibc-RHEL-2338-1.patch
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commit c3b023a7822185c9176cfb96eeca4ada3d662c4b
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Nov 24 12:57:57 2021 -0300
linux: Only build fstatat fallback if required
For 32-bit architecture with __ASSUME_STATX there is no need to
build fstatat64_time64_stat.
Checked on i686-linux-gnu.
diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c
index f968e4ef0594852e..50ae5ad74832efe1 100644
--- a/sysdeps/unix/sysv/linux/fstatat64.c
+++ b/sysdeps/unix/sysv/linux/fstatat64.c
@@ -74,6 +74,17 @@ fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf,
return r;
}
+#if (__WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
+ || defined STAT_HAS_TIME32
+# define FSTATAT_USE_STATX 1
+#else
+# define FSTATAT_USE_STATX 0
+#endif
+
+/* Only statx supports 64-bit timestamps for 32-bit architectures with
+ __ASSUME_STATX, so there is no point in building the fallback. */
+#if !FSTATAT_USE_STATX || (FSTATAT_USE_STATX && !defined __ASSUME_STATX)
static inline int
fstatat64_time64_stat (int fd, const char *file, struct __stat64_t64 *buf,
int flag)
@@ -134,13 +145,6 @@ fstatat64_time64_stat (int fd, const char *file, struct __stat64_t64 *buf,
return r;
}
-
-#if (__WORDSIZE == 32 \
- && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
- || defined STAT_HAS_TIME32
-# define FSTATAT_USE_STATX 1
-#else
-# define FSTATAT_USE_STATX 0
#endif
int

36
SOURCES/glibc-RHEL-2338-2.patch
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commit c7f05bd5342517f3f751e6ea8dec1916b80bee8a
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Mar 9 18:35:39 2022 -0300
Fix ununsed fstatat64_time64_statx
It is only called for legacy ABIs.
diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c
index 50ae5ad74832efe1..45221bbdf901fa47 100644
--- a/sysdeps/unix/sysv/linux/fstatat64.c
+++ b/sysdeps/unix/sysv/linux/fstatat64.c
@@ -40,6 +40,11 @@ _Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t),
"__blkcnt_t and __blkcnt64_t must match");
#endif
+#if (__WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
+ || defined STAT_HAS_TIME32
+# define FSTATAT_USE_STATX 1
+
static inline int
fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf,
int flag)
@@ -73,11 +78,6 @@ fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf,
return r;
}
-
-#if (__WORDSIZE == 32 \
- && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
- || defined STAT_HAS_TIME32
-# define FSTATAT_USE_STATX 1
#else
# define FSTATAT_USE_STATX 0
#endif

30
SOURCES/glibc-RHEL-2338-3.patch
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commit e6547d635b991651600fab31f788ed5facd77610
Author: WANG Xuerui <git@xen0n.name>
Date: Wed Jun 1 10:12:28 2022 +0800
linux: use statx for fstat if neither newfstatat nor fstatat64 is present
LoongArch is going to be the first architecture supported by Linux that
has neither fstat* nor newfstatat [1], instead exclusively relying on
statx. So in fstatat64's implementation, we need to also enable statx
usage if neither fstatat64 nor newfstatat is present, to prepare for
this new case of kernel ABI.
[1]: https://lore.kernel.org/all/20220518092619.1269111-1-chenhuacai@loongson.cn/
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c
index 45221bbdf901fa47..ded431257bf3450f 100644
--- a/sysdeps/unix/sysv/linux/fstatat64.c
+++ b/sysdeps/unix/sysv/linux/fstatat64.c
@@ -42,7 +42,8 @@ _Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t),
#if (__WORDSIZE == 32 \
&& (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
- || defined STAT_HAS_TIME32
+ || defined STAT_HAS_TIME32 \
+ || (!defined __NR_newfstatat && !defined __NR_fstatat64)
# define FSTATAT_USE_STATX 1
static inline int

157
SOURCES/glibc-RHEL-2338-4.patch
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commit 551101e8240b7514fc646d1722f8b79c90362b8f
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 11 10:25:48 2023 -0300
io: Do not implement fstat with fstatat
AT_EMPTY_PATH is a requirement to implement fstat over fstatat,
however it does not prevent the kernel to read the path argument.
It is not an issue, but on x86-64 with SMAP-capable CPUs the kernel is
forced to perform expensive user memory access. After that regular
lookup is performed which adds even more overhead.
Instead, issue the fstat syscall directly on LFS fstat implementation
(32 bit architectures will still continue to use statx, which is
required to have 64 bit time_t support). it should be even a
small performance gain on non x86_64, since there is no need
to handle the path argument.
Checked on x86_64-linux-gnu.
diff --git a/sysdeps/unix/sysv/linux/fstat64.c b/sysdeps/unix/sysv/linux/fstat64.c
index 46de80b663b9c1c4..fe4f57065f8713d2 100644
--- a/sysdeps/unix/sysv/linux/fstat64.c
+++ b/sysdeps/unix/sysv/linux/fstat64.c
@@ -19,20 +19,53 @@
#define __fstat __redirect___fstat
#define fstat __redirect_fstat
#include <sys/stat.h>
+#undef __fstat
+#undef fstat
#include <fcntl.h>
-#include <kernel_stat.h>
-#include <stat_t64_cp.h>
+#include <internal-stat.h>
#include <errno.h>
int
__fstat64_time64 (int fd, struct __stat64_t64 *buf)
{
+#if !FSTATAT_USE_STATX
+# if XSTAT_IS_XSTAT64
+# ifdef __NR_fstat
+ /* 64-bit kABI, e.g. aarch64, ia64, powerpc64*, s390x, riscv64, and
+ x86_64. */
+ return INLINE_SYSCALL_CALL (fstat, fd, buf);
+# elif defined __NR_fstat64
+# if STAT64_IS_KERNEL_STAT64
+ /* 64-bit kABI outlier, e.g. alpha */
+ return INLINE_SYSCALL_CALL (fstat64, fd, buf);
+# else
+ /* 64-bit kABI outlier, e.g. sparc64. */
+ struct kernel_stat64 kst64;
+ int r = INLINE_SYSCALL_CALL (fstat64, fd, &kst64);
+ if (r == 0)
+ __cp_stat64_kstat64 (buf, &kst64);
+ return r;
+# endif /* STAT64_IS_KERNEL_STAT64 */
+# endif
+# else /* XSTAT_IS_XSTAT64 */
+ /* 64-bit kabi outlier, e.g. mips64 and mips64-n32. */
+ struct kernel_stat kst;
+ int r = INLINE_SYSCALL_CALL (fstat, fd, &kst);
+ if (r == 0)
+ __cp_kstat_stat64_t64 (&kst, buf);
+ return r;
+# endif
+#else /* !FSTATAT_USE_STATX */
+ /* All kABIs with non-LFS support and with old 32-bit time_t support
+ e.g. arm, csky, i386, hppa, m68k, microblaze, nios2, sh, powerpc32,
+ and sparc32. */
if (fd < 0)
{
__set_errno (EBADF);
return -1;
}
return __fstatat64_time64 (fd, "", buf, AT_EMPTY_PATH);
+#endif
}
#if __TIMESIZE != 64
hidden_def (__fstat64_time64)
diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c
index ded431257bf3450f..8e9db7b11f0e1cf3 100644
--- a/sysdeps/unix/sysv/linux/fstatat64.c
+++ b/sysdeps/unix/sysv/linux/fstatat64.c
@@ -21,12 +21,10 @@
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
-#include <kernel_stat.h>
#include <sysdep.h>
#include <time.h>
-#include <kstat_cp.h>
-#include <stat_t64_cp.h>
#include <sys/sysmacros.h>
+#include <internal-stat.h>
#if __TIMESIZE == 64 \
&& (__WORDSIZE == 32 \
@@ -40,11 +38,7 @@ _Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t),
"__blkcnt_t and __blkcnt64_t must match");
#endif
-#if (__WORDSIZE == 32 \
- && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
- || defined STAT_HAS_TIME32 \
- || (!defined __NR_newfstatat && !defined __NR_fstatat64)
-# define FSTATAT_USE_STATX 1
+#if FSTATAT_USE_STATX
static inline int
fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf,
@@ -79,8 +73,6 @@ fstatat64_time64_statx (int fd, const char *file, struct __stat64_t64 *buf,
return r;
}
-#else
-# define FSTATAT_USE_STATX 0
#endif
/* Only statx supports 64-bit timestamps for 32-bit architectures with
diff --git a/sysdeps/unix/sysv/linux/internal-stat.h b/sysdeps/unix/sysv/linux/internal-stat.h
new file mode 100644
index 0000000000000000..e3b05698532fb185
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/internal-stat.h
@@ -0,0 +1,31 @@
+/* Internal stat definitions.
+ Copyright (C) 2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <stat_t64_cp.h>
+#include <kernel_stat.h>
+#include <kstat_cp.h>
+
+#if (__WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
+ || defined STAT_HAS_TIME32 \
+ || (!defined __NR_newfstatat && !defined __NR_fstatat64)
+# define FSTATAT_USE_STATX 1
+#else
+# define FSTATAT_USE_STATX 0
+#endif

41
SOURCES/glibc-RHEL-2426-1.patch
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commit 01671608a3bddde369cdd42aed12e1c019b87158
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Wed Aug 4 02:21:01 2021 +0530
gethosts: Remove unused argument _type
The generated code is unchanged.
(cherry picked from commit b17e842a60819098d2a203ecc8b8371b7e1d6c65)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index f391dc0a59849aab..702d8a50e0c218d2 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -239,7 +239,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
return true;
}
-#define gethosts(_family, _type) \
+#define gethosts(_family) \
{ \
struct hostent th; \
char *localcanon = NULL; \
@@ -864,7 +864,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (req->ai_family == AF_INET6
|| req->ai_family == AF_UNSPEC)
{
- gethosts (AF_INET6, struct in6_addr);
+ gethosts (AF_INET6);
no_inet6_data = no_data;
inet6_status = status;
}
@@ -876,7 +876,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
know we are not going to need them. */
&& ((req->ai_flags & AI_ALL) || !got_ipv6)))
{
- gethosts (AF_INET, struct in_addr);
+ gethosts (AF_INET);
if (req->ai_family == AF_INET)
{

178
SOURCES/glibc-RHEL-2426-10.patch
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commit 6e3fed9d20d6b7ef4b69dd7cfcdd7bbaf1c9a9cb
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 20:24:37 2022 +0530
gaih_inet: split loopback lookup into its own function
Flatten the condition nesting and replace the alloca for RET.AT/ATR with
a single array LOCAL_AT[2]. This gets rid of alloca and alloca
accounting.
`git diff -b` is probably the best way to view this change since much of
the diff is whitespace changes.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit 657472b2a50f67b12e5bbe5827582c9c2bb82dc3)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 6be109d07f7fcce0..827c43b369836de9 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1004,6 +1004,32 @@ try_simple_gethostbyname (const char *name, const struct addrinfo *req,
return -EAI_NODATA;
}
+/* Add local address information into RES. RES->AT is assumed to have enough
+ space for two tuples and is zeroed out. */
+
+static void
+get_local_addresses (const struct addrinfo *req, struct gaih_result *res)
+{
+ struct gaih_addrtuple *atr = res->at;
+ if (req->ai_family == AF_UNSPEC)
+ res->at->next = res->at + 1;
+
+ if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6)
+ {
+ res->at->family = AF_INET6;
+ if ((req->ai_flags & AI_PASSIVE) == 0)
+ memcpy (res->at->addr, &in6addr_loopback, sizeof (struct in6_addr));
+ atr = res->at->next;
+ }
+
+ if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET)
+ {
+ atr->family = AF_INET;
+ if ((req->ai_flags & AI_PASSIVE) == 0)
+ atr->addr[0] = htonl (INADDR_LOOPBACK);
+ }
+}
+
static int
gaih_inet (const char *name, const struct gaih_service *service,
const struct addrinfo *req, struct addrinfo **pai,
@@ -1014,10 +1040,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
const char *orig_name = name;
- /* Reserve stack memory for the scratch buffer in the getaddrinfo
- function. */
- size_t alloca_used = sizeof (struct scratch_buffer);
-
int rc;
if ((rc = get_servtuples (service, req, st, tmpbuf)) != 0)
return rc;
@@ -1027,76 +1049,51 @@ gaih_inet (const char *name, const struct gaih_service *service,
int result = 0;
struct gaih_result res = {0};
- if (name != NULL)
+ struct gaih_addrtuple local_at[2] = {0};
+
+ res.at = local_at;
+
+ if (__glibc_unlikely (name == NULL))
{
- if (req->ai_flags & AI_IDN)
- {
- char *out;
- result = __idna_to_dns_encoding (name, &out);
- if (result != 0)
- return -result;
- name = out;
- malloc_name = true;
- }
+ get_local_addresses (req, &res);
+ goto process_list;
+ }
- res.at = alloca_account (sizeof (struct gaih_addrtuple), alloca_used);
- res.at->scopeid = 0;
- res.at->next = NULL;
+ if (req->ai_flags & AI_IDN)
+ {
+ char *out;
+ result = __idna_to_dns_encoding (name, &out);
+ if (result != 0)
+ return -result;
+ name = out;
+ malloc_name = true;
+ }
- if ((result = text_to_binary_address (name, req, &res)) != 0)
- goto free_and_return;
- else if (res.at != NULL)
- goto process_list;
+ if ((result = text_to_binary_address (name, req, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
- if ((result = try_simple_gethostbyname (name, req, tmpbuf, &res)) != 0)
- goto free_and_return;
- else if (res.at != NULL)
- goto process_list;
+ if ((result = try_simple_gethostbyname (name, req, tmpbuf, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
#ifdef USE_NSCD
- if ((result = get_nscd_addresses (name, req, &res)) != 0)
- goto free_and_return;
- else if (res.at != NULL)
- goto process_list;
+ if ((result = get_nscd_addresses (name, req, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
#endif
- if ((result = get_nss_addresses (name, req, tmpbuf, &res)) != 0)
- goto free_and_return;
- else if (res.at != NULL)
- goto process_list;
-
- /* None of the lookups worked, so name not found. */
- result = -EAI_NONAME;
- goto free_and_return;
- }
- else
- {
- struct gaih_addrtuple *atr;
- atr = res.at = alloca_account (sizeof (struct gaih_addrtuple),
- alloca_used);
- memset (res.at, '\0', sizeof (struct gaih_addrtuple));
-
- if (req->ai_family == AF_UNSPEC)
- {
- res.at->next = __alloca (sizeof (struct gaih_addrtuple));
- memset (res.at->next, '\0', sizeof (struct gaih_addrtuple));
- }
-
- if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6)
- {
- res.at->family = AF_INET6;
- if ((req->ai_flags & AI_PASSIVE) == 0)
- memcpy (res.at->addr, &in6addr_loopback, sizeof (struct in6_addr));
- atr = res.at->next;
- }
+ if ((result = get_nss_addresses (name, req, tmpbuf, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
- if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET)
- {
- atr->family = AF_INET;
- if ((req->ai_flags & AI_PASSIVE) == 0)
- atr->addr[0] = htonl (INADDR_LOOPBACK);
- }
- }
+ /* None of the lookups worked, so name not found. */
+ result = -EAI_NONAME;
+ goto free_and_return;
process_list:
{

208
SOURCES/glibc-RHEL-2426-11.patch
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commit 92478a808f477480adbc5ca3d9a4a1bc27fc13ae
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 20:38:31 2022 +0530
gaih_inet: Split result generation into its own function
Simplify the loop a wee bit and clean up variable names too.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit ac4653ef503d1e87893d1a6714748a1cdf4bf7ad)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 827c43b369836de9..1008f247365ea009 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1030,6 +1030,87 @@ get_local_addresses (const struct addrinfo *req, struct gaih_result *res)
}
}
+/* Generate results in PAI and its count in NADDRS. Return 0 on success or an
+ error code on failure. */
+
+static int
+generate_addrinfo (const struct addrinfo *req, struct gaih_result *res,
+ const struct gaih_servtuple *st, struct addrinfo **pai,
+ unsigned int *naddrs)
+{
+ size_t socklen;
+ sa_family_t family;
+
+ /* Buffer is the size of an unformatted IPv6 address in printable format. */
+ for (struct gaih_addrtuple *at = res->at; at != NULL; at = at->next)
+ {
+ family = at->family;
+ if (family == AF_INET6)
+ {
+ socklen = sizeof (struct sockaddr_in6);
+
+ /* If we looked up IPv4 mapped address discard them here if
+ the caller isn't interested in all address and we have
+ found at least one IPv6 address. */
+ if (res->got_ipv6
+ && (req->ai_flags & (AI_V4MAPPED|AI_ALL)) == AI_V4MAPPED
+ && IN6_IS_ADDR_V4MAPPED (at->addr))
+ continue;
+ }
+ else
+ socklen = sizeof (struct sockaddr_in);
+
+ for (int i = 0; st[i].set; i++)
+ {
+ struct addrinfo *ai;
+ ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
+ if (ai == NULL)
+ return -EAI_MEMORY;
+
+ ai->ai_flags = req->ai_flags;
+ ai->ai_family = family;
+ ai->ai_socktype = st[i].socktype;
+ ai->ai_protocol = st[i].protocol;
+ ai->ai_addrlen = socklen;
+ ai->ai_addr = (void *) (ai + 1);
+
+ /* We only add the canonical name once. */
+ ai->ai_canonname = res->canon;
+ res->canon = NULL;
+
+#ifdef _HAVE_SA_LEN
+ ai->ai_addr->sa_len = socklen;
+#endif /* _HAVE_SA_LEN */
+ ai->ai_addr->sa_family = family;
+
+ /* In case of an allocation error the list must be NULL
+ terminated. */
+ ai->ai_next = NULL;
+
+ if (family == AF_INET6)
+ {
+ struct sockaddr_in6 *sin6p = (struct sockaddr_in6 *) ai->ai_addr;
+ sin6p->sin6_port = st[i].port;
+ sin6p->sin6_flowinfo = 0;
+ memcpy (&sin6p->sin6_addr, at->addr, sizeof (struct in6_addr));
+ sin6p->sin6_scope_id = at->scopeid;
+ }
+ else
+ {
+ struct sockaddr_in *sinp = (struct sockaddr_in *) ai->ai_addr;
+ sinp->sin_port = st[i].port;
+ memcpy (&sinp->sin_addr, at->addr, sizeof (struct in_addr));
+ memset (sinp->sin_zero, '\0', sizeof (sinp->sin_zero));
+ }
+
+ pai = &(ai->ai_next);
+ }
+
+ ++*naddrs;
+ }
+ return 0;
+}
+
static int
gaih_inet (const char *name, const struct gaih_service *service,
const struct addrinfo *req, struct addrinfo **pai,
@@ -1096,98 +1177,13 @@ gaih_inet (const char *name, const struct gaih_service *service,
goto free_and_return;
process_list:
- {
- /* Set up the canonical name if we need it. */
- if ((result = process_canonname (req, orig_name, &res)) != 0)
- goto free_and_return;
-
- struct gaih_addrtuple *at2 = res.at;
- size_t socklen;
- sa_family_t family;
-
- /*
- buffer is the size of an unformatted IPv6 address in printable format.
- */
- while (at2 != NULL)
- {
- family = at2->family;
- if (family == AF_INET6)
- {
- socklen = sizeof (struct sockaddr_in6);
-
- /* If we looked up IPv4 mapped address discard them here if
- the caller isn't interested in all address and we have
- found at least one IPv6 address. */
- if (res.got_ipv6
- && (req->ai_flags & (AI_V4MAPPED|AI_ALL)) == AI_V4MAPPED
- && IN6_IS_ADDR_V4MAPPED (at2->addr))
- goto ignore;
- }
- else
- socklen = sizeof (struct sockaddr_in);
-
- for (int i = 0; st[i].set; i++)
- {
- struct addrinfo *ai;
- ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
- if (ai == NULL)
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
-
- ai->ai_flags = req->ai_flags;
- ai->ai_family = family;
- ai->ai_socktype = st[i].socktype;
- ai->ai_protocol = st[i].protocol;
- ai->ai_addrlen = socklen;
- ai->ai_addr = (void *) (ai + 1);
-
- /* We only add the canonical name once. */
- ai->ai_canonname = res.canon;
- res.canon = NULL;
-
-#ifdef _HAVE_SA_LEN
- ai->ai_addr->sa_len = socklen;
-#endif /* _HAVE_SA_LEN */
- ai->ai_addr->sa_family = family;
-
- /* In case of an allocation error the list must be NULL
- terminated. */
- ai->ai_next = NULL;
-
- if (family == AF_INET6)
- {
- struct sockaddr_in6 *sin6p =
- (struct sockaddr_in6 *) ai->ai_addr;
-
- sin6p->sin6_port = st[i].port;
- sin6p->sin6_flowinfo = 0;
- memcpy (&sin6p->sin6_addr,
- at2->addr, sizeof (struct in6_addr));
- sin6p->sin6_scope_id = at2->scopeid;
- }
- else
- {
- struct sockaddr_in *sinp =
- (struct sockaddr_in *) ai->ai_addr;
- sinp->sin_port = st[i].port;
- memcpy (&sinp->sin_addr,
- at2->addr, sizeof (struct in_addr));
- memset (sinp->sin_zero, '\0', sizeof (sinp->sin_zero));
- }
-
- pai = &(ai->ai_next);
- }
-
- ++*naddrs;
+ /* Set up the canonical name if we need it. */
+ if ((result = process_canonname (req, orig_name, &res)) != 0)
+ goto free_and_return;
- ignore:
- at2 = at2->next;
- }
- }
+ result = generate_addrinfo (req, &res, st, pai, naddrs);
- free_and_return:
+free_and_return:
if (malloc_name)
free ((char *) name);
free (addrmem);

34
SOURCES/glibc-RHEL-2426-12.patch
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@ -0,0 +1,34 @@
commit cc4544ef8069a14c67a46b7e8e28eff1dc102050
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Wed Mar 2 11:45:29 2022 +0530
gethosts: Return EAI_MEMORY on allocation failure
All other cases of failures due to lack of memory return EAI_MEMORY, so
it seems wrong to return EAI_SYSTEM here. The only reason
convert_hostent_to_gaih_addrtuple could fail is on calloc failure.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit b587456c0e7b59dcfdbd2d44db000a3bc8244e57)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 1008f247365ea009..37260d6e6f292186 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -303,13 +303,13 @@ gethosts (nss_gethostbyname3_r fct, int family, const char *name,
else if (status == NSS_STATUS_SUCCESS)
{
if (!convert_hostent_to_gaih_addrtuple (req, family, &th, res))
- return -EAI_SYSTEM;
+ return -EAI_MEMORY;
if (localcanon != NULL && res->canon == NULL)
{
char *canonbuf = __strdup (localcanon);
if (canonbuf == NULL)
- return -EAI_SYSTEM;
+ return -EAI_MEMORY;
res->canon = canonbuf;
}
}

316
SOURCES/glibc-RHEL-2426-13.patch
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@ -0,0 +1,316 @@
commit e09ee267c03e3150c2c9ba28625ab130705a485e
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Fri Sep 15 13:51:12 2023 -0400
getaddrinfo: Fix use after free in getcanonname (CVE-2023-4806)
When an NSS plugin only implements the _gethostbyname2_r and
_getcanonname_r callbacks, getaddrinfo could use memory that was freed
during tmpbuf resizing, through h_name in a previous query response.
The backing store for res->at->name when doing a query with
gethostbyname3_r or gethostbyname2_r is tmpbuf, which is reallocated in
gethosts during the query. For AF_INET6 lookup with AI_ALL |
AI_V4MAPPED, gethosts gets called twice, once for a v6 lookup and second
for a v4 lookup. In this case, if the first call reallocates tmpbuf
enough number of times, resulting in a malloc, th->h_name (that
res->at->name refers to) ends up on a heap allocated storage in tmpbuf.
Now if the second call to gethosts also causes the plugin callback to
return NSS_STATUS_TRYAGAIN, tmpbuf will get freed, resulting in a UAF
reference in res->at->name. This then gets dereferenced in the
getcanonname_r plugin call, resulting in the use after free.
Fix this by copying h_name over and freeing it at the end. This
resolves BZ #30843, which is assigned CVE-2023-4806.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 973fe93a5675c42798b2161c6f29c01b0e243994)
diff --git a/nss/Makefile b/nss/Makefile
index 333edb1588ede881..64b29745131d3cf5 100644
--- a/nss/Makefile
+++ b/nss/Makefile
@@ -81,6 +81,7 @@ tests-container := \
tst-nss-test3 \
tst-reload1 \
tst-reload2 \
+ tst-nss-gai-hv2-canonname \
# tests-container
# Tests which need libdl
@@ -144,7 +145,8 @@ libnss_compat-inhibit-o = $(filter-out .os,$(object-suffixes))
ifeq ($(build-static-nss),yes)
tests-static += tst-nss-static
endif
-extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os
+extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os \
+ nss_test_gai_hv2_canonname.os
include ../Rules
@@ -179,12 +181,16 @@ rtld-tests-LDFLAGS += -Wl,--dynamic-list=nss_test.ver
libof-nss_test1 = extramodules
libof-nss_test2 = extramodules
libof-nss_test_errno = extramodules
+libof-nss_test_gai_hv2_canonname = extramodules
$(objpfx)/libnss_test1.so: $(objpfx)nss_test1.os $(link-libc-deps)
$(build-module)
$(objpfx)/libnss_test2.so: $(objpfx)nss_test2.os $(link-libc-deps)
$(build-module)
$(objpfx)/libnss_test_errno.so: $(objpfx)nss_test_errno.os $(link-libc-deps)
$(build-module)
+$(objpfx)/libnss_test_gai_hv2_canonname.so: \
+ $(objpfx)nss_test_gai_hv2_canonname.os $(link-libc-deps)
+ $(build-module)
$(objpfx)nss_test2.os : nss_test1.c
# Use the nss_files suffix for these objects as well.
$(objpfx)/libnss_test1.so$(libnss_files.so-version): $(objpfx)/libnss_test1.so
@@ -194,10 +200,14 @@ $(objpfx)/libnss_test2.so$(libnss_files.so-version): $(objpfx)/libnss_test2.so
$(objpfx)/libnss_test_errno.so$(libnss_files.so-version): \
$(objpfx)/libnss_test_errno.so
$(make-link)
+$(objpfx)/libnss_test_gai_hv2_canonname.so$(libnss_files.so-version): \
+ $(objpfx)/libnss_test_gai_hv2_canonname.so
+ $(make-link)
$(patsubst %,$(objpfx)%.out,$(tests) $(tests-container)) : \
$(objpfx)/libnss_test1.so$(libnss_files.so-version) \
$(objpfx)/libnss_test2.so$(libnss_files.so-version) \
- $(objpfx)/libnss_test_errno.so$(libnss_files.so-version)
+ $(objpfx)/libnss_test_errno.so$(libnss_files.so-version) \
+ $(objpfx)/libnss_test_gai_hv2_canonname.so$(libnss_files.so-version)
ifeq (yes,$(have-thread-library))
$(objpfx)tst-cancel-getpwuid_r: $(shared-thread-library)
diff --git a/nss/nss_test_gai_hv2_canonname.c b/nss/nss_test_gai_hv2_canonname.c
new file mode 100644
index 0000000000000000..4439c83c9f40cf43
--- /dev/null
+++ b/nss/nss_test_gai_hv2_canonname.c
@@ -0,0 +1,56 @@
+/* NSS service provider that only provides gethostbyname2_r.
+ Copyright The GNU Toolchain Authors.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <nss.h>
+#include <stdlib.h>
+#include <string.h>
+#include "nss/tst-nss-gai-hv2-canonname.h"
+
+/* Catch misnamed and functions. */
+#pragma GCC diagnostic error "-Wmissing-prototypes"
+NSS_DECLARE_MODULE_FUNCTIONS (test_gai_hv2_canonname)
+
+extern enum nss_status _nss_files_gethostbyname2_r (const char *, int,
+ struct hostent *, char *,
+ size_t, int *, int *);
+
+enum nss_status
+_nss_test_gai_hv2_canonname_gethostbyname2_r (const char *name, int af,
+ struct hostent *result,
+ char *buffer, size_t buflen,
+ int *errnop, int *herrnop)
+{
+ return _nss_files_gethostbyname2_r (name, af, result, buffer, buflen, errnop,
+ herrnop);
+}
+
+enum nss_status
+_nss_test_gai_hv2_canonname_getcanonname_r (const char *name, char *buffer,
+ size_t buflen, char **result,
+ int *errnop, int *h_errnop)
+{
+ /* We expect QUERYNAME, which is a small enough string that it shouldn't fail
+ the test. */
+ if (memcmp (QUERYNAME, name, sizeof (QUERYNAME))
+ || buflen < sizeof (QUERYNAME))
+ abort ();
+
+ strncpy (buffer, name, buflen);
+ *result = buffer;
+ return NSS_STATUS_SUCCESS;
+}
diff --git a/nss/tst-nss-gai-hv2-canonname.c b/nss/tst-nss-gai-hv2-canonname.c
new file mode 100644
index 0000000000000000..d5f10c07d6a90773
--- /dev/null
+++ b/nss/tst-nss-gai-hv2-canonname.c
@@ -0,0 +1,63 @@
+/* Test NSS query path for plugins that only implement gethostbyname2
+ (#30843).
+ Copyright The GNU Toolchain Authors.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <nss.h>
+#include <netdb.h>
+#include <stdlib.h>
+#include <string.h>
+#include <support/check.h>
+#include <support/xstdio.h>
+#include "nss/tst-nss-gai-hv2-canonname.h"
+
+#define PREPARE do_prepare
+
+static void do_prepare (int a, char **av)
+{
+ FILE *hosts = xfopen ("/etc/hosts", "w");
+ for (unsigned i = 2; i < 255; i++)
+ {
+ fprintf (hosts, "ff01::ff02:ff03:%u:2\ttest.example.com\n", i);
+ fprintf (hosts, "192.168.0.%u\ttest.example.com\n", i);
+ }
+ xfclose (hosts);
+}
+
+static int
+do_test (void)
+{
+ __nss_configure_lookup ("hosts", "test_gai_hv2_canonname");
+
+ struct addrinfo hints = {};
+ struct addrinfo *result = NULL;
+
+ hints.ai_family = AF_INET6;
+ hints.ai_flags = AI_ALL | AI_V4MAPPED | AI_CANONNAME;
+
+ int ret = getaddrinfo (QUERYNAME, NULL, &hints, &result);
+
+ if (ret != 0)
+ FAIL_EXIT1 ("getaddrinfo failed: %s\n", gai_strerror (ret));
+
+ TEST_COMPARE_STRING (result->ai_canonname, QUERYNAME);
+
+ freeaddrinfo(result);
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/nss/tst-nss-gai-hv2-canonname.h b/nss/tst-nss-gai-hv2-canonname.h
new file mode 100644
index 0000000000000000..14f2a9cb0867dff9
--- /dev/null
+++ b/nss/tst-nss-gai-hv2-canonname.h
@@ -0,0 +1 @@
+#define QUERYNAME "test.example.com"
diff --git a/nss/tst-nss-gai-hv2-canonname.root/postclean.req b/nss/tst-nss-gai-hv2-canonname.root/postclean.req
new file mode 100644
index 0000000000000000..e69de29bb2d1d643
diff --git a/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script b/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script
new file mode 100644
index 0000000000000000..31848b4a28524af6
--- /dev/null
+++ b/nss/tst-nss-gai-hv2-canonname.root/tst-nss-gai-hv2-canonname.script
@@ -0,0 +1,2 @@
+cp $B/nss/libnss_test_gai_hv2_canonname.so $L/libnss_test_gai_hv2_canonname.so.2
+su
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 37260d6e6f292186..10dc63542f337693 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -120,6 +120,7 @@ struct gaih_result
{
struct gaih_addrtuple *at;
char *canon;
+ char *h_name;
bool free_at;
bool got_ipv6;
};
@@ -165,6 +166,7 @@ gaih_result_reset (struct gaih_result *res)
if (res->free_at)
free (res->at);
free (res->canon);
+ free (res->h_name);
memset (res, 0, sizeof (*res));
}
@@ -203,9 +205,8 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
return 0;
}
-/* Convert struct hostent to a list of struct gaih_addrtuple objects. h_name
- is not copied, and the struct hostent object must not be deallocated
- prematurely. The new addresses are appended to the tuple array in RES. */
+/* Convert struct hostent to a list of struct gaih_addrtuple objects. The new
+ addresses are appended to the tuple array in RES. */
static bool
convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family,
struct hostent *h, struct gaih_result *res)
@@ -238,6 +239,15 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family,
res->at = array;
res->free_at = true;
+ /* Duplicate h_name because it may get reclaimed when the underlying storage
+ is freed. */
+ if (res->h_name == NULL)
+ {
+ res->h_name = __strdup (h->h_name);
+ if (res->h_name == NULL)
+ return false;
+ }
+
/* Update the next pointers on reallocation. */
for (size_t i = 0; i < old; i++)
array[i].next = array + i + 1;
@@ -262,7 +272,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family,
}
array[i].next = array + i + 1;
}
- array[0].name = h->h_name;
array[count - 1].next = NULL;
return true;
@@ -324,15 +333,15 @@ gethosts (nss_gethostbyname3_r fct, int family, const char *name,
memory allocation failure. The returned string is allocated on the
heap; the caller has to free it. */
static char *
-getcanonname (nss_action_list nip, struct gaih_addrtuple *at, const char *name)
+getcanonname (nss_action_list nip, const char *hname, const char *name)
{
nss_getcanonname_r *cfct = __nss_lookup_function (nip, "getcanonname_r");
char *s = (char *) name;
if (cfct != NULL)
{
char buf[256];
- if (DL_CALL_FCT (cfct, (at->name ?: name, buf, sizeof (buf),
- &s, &errno, &h_errno)) != NSS_STATUS_SUCCESS)
+ if (DL_CALL_FCT (cfct, (hname ?: name, buf, sizeof (buf), &s, &errno,
+ &h_errno)) != NSS_STATUS_SUCCESS)
/* If the canonical name cannot be determined, use the passed
string. */
s = (char *) name;
@@ -771,7 +780,7 @@ get_nss_addresses (const char *name, const struct addrinfo *req,
if ((req->ai_flags & AI_CANONNAME) != 0
&& res->canon == NULL)
{
- char *canonbuf = getcanonname (nip, res->at, name);
+ char *canonbuf = getcanonname (nip, res->h_name, name);
if (canonbuf == NULL)
{
__resolv_context_put (res_ctx);

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SOURCES/glibc-RHEL-2426-14.patch
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commit 57e349b1b0df1aee2dcd19dae1f324bde25ff8f0
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Dec 8 07:02:27 2021 -0800
Disable DT_RUNPATH on NSS tests [BZ #28455]
The glibc internal NSS functions should always load NSS modules from
the system. For testing purpose, disable DT_RUNPATH on NSS tests so
that the glibc internal NSS functions can load testing NSS modules
via DT_RPATH.
This partially fixes BZ #28455.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Conflicts:
nss/Makefile
(different test backport order)
diff --git a/nss/Makefile b/nss/Makefile
index 64b29745131d3cf5..9af46fb3a8195809 100644
--- a/nss/Makefile
+++ b/nss/Makefile
@@ -215,3 +215,13 @@ endif
$(objpfx)tst-nss-files-alias-leak.out: $(objpfx)/libnss_files.so
$(objpfx)tst-nss-files-alias-truncated.out: $(objpfx)/libnss_files.so
+
+# Disable DT_RUNPATH on NSS tests so that the glibc internal NSS
+# functions can load testing NSS modules via DT_RPATH.
+LDFLAGS-tst-nss-test1 = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test2 = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test3 = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test4 = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test5 = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test_errno = -Wl,--disable-new-dtags
+LDFLAGS-tst-nss-test_gai_hv2_canonname = -Wl,--disable-new-dtags

84
SOURCES/glibc-RHEL-2426-15.patch
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commit ec6b95c3303c700eb89eebeda2d7264cc184a796
Author: Romain Geissler <romain.geissler@amadeus.com>
Date: Mon Sep 25 01:21:51 2023 +0100
Fix leak in getaddrinfo introduced by the fix for CVE-2023-4806 [BZ #30843]
This patch fixes a very recently added leak in getaddrinfo.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
diff --git a/nss/Makefile b/nss/Makefile
index 9af46fb3a8195809..62a68880198c243c 100644
--- a/nss/Makefile
+++ b/nss/Makefile
@@ -148,6 +148,15 @@ endif
extra-test-objs += nss_test1.os nss_test2.os nss_test_errno.os \
nss_test_gai_hv2_canonname.os
+ifeq ($(run-built-tests),yes)
+ifneq (no,$(PERL))
+tests-special += $(objpfx)mtrace-tst-nss-gai-hv2-canonname.out
+endif
+endif
+
+generated += mtrace-tst-nss-gai-hv2-canonname.out \
+ tst-nss-gai-hv2-canonname.mtrace
+
include ../Rules
ifeq (yes,$(have-selinux))
@@ -216,6 +225,17 @@ endif
$(objpfx)tst-nss-files-alias-leak.out: $(objpfx)/libnss_files.so
$(objpfx)tst-nss-files-alias-truncated.out: $(objpfx)/libnss_files.so
+tst-nss-gai-hv2-canonname-ENV = \
+ MALLOC_TRACE=$(objpfx)tst-nss-gai-hv2-canonname.mtrace \
+ LD_PRELOAD=$(common-objpfx)/malloc/libc_malloc_debug.so
+$(objpfx)mtrace-tst-nss-gai-hv2-canonname.out: \
+ $(objpfx)tst-nss-gai-hv2-canonname.out
+ { test -r $(objpfx)tst-nss-gai-hv2-canonname.mtrace \
+ || ( echo "tst-nss-gai-hv2-canonname.mtrace does not exist"; exit 77; ) \
+ && $(common-objpfx)malloc/mtrace \
+ $(objpfx)tst-nss-gai-hv2-canonname.mtrace; } > $@; \
+ $(evaluate-test)
+
# Disable DT_RUNPATH on NSS tests so that the glibc internal NSS
# functions can load testing NSS modules via DT_RPATH.
LDFLAGS-tst-nss-test1 = -Wl,--disable-new-dtags
diff --git a/nss/tst-nss-gai-hv2-canonname.c b/nss/tst-nss-gai-hv2-canonname.c
index d5f10c07d6a90773..7db53cf09da8dcb6 100644
--- a/nss/tst-nss-gai-hv2-canonname.c
+++ b/nss/tst-nss-gai-hv2-canonname.c
@@ -21,6 +21,7 @@
#include <netdb.h>
#include <stdlib.h>
#include <string.h>
+#include <mcheck.h>
#include <support/check.h>
#include <support/xstdio.h>
#include "nss/tst-nss-gai-hv2-canonname.h"
@@ -41,6 +42,8 @@ static void do_prepare (int a, char **av)
static int
do_test (void)
{
+ mtrace ();
+
__nss_configure_lookup ("hosts", "test_gai_hv2_canonname");
struct addrinfo hints = {};
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 10dc63542f337693..d6046a707f1d742a 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -1196,9 +1196,7 @@ free_and_return:
if (malloc_name)
free ((char *) name);
free (addrmem);
- if (res.free_at)
- free (res.at);
- free (res.canon);
+ gaih_result_reset (&res);
return result;
}

248
SOURCES/glibc-RHEL-2426-2.patch
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@ -0,0 +1,248 @@
commit b195fd86c616b147dad3a63498b79e0dedb4662b
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 22:17:36 2022 +0530
gaih_inet: Simplify canon name resolution
Simplify logic for allocation of canon to remove the canonbuf variable;
canon now always points to an allocated block. Also pull the canon name
set into a separate function.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit d01411f6bc61429fc027c38827bf3103b48eef2e)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 702d8a50e0c218d2..5c0d873e1d766099 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -285,7 +285,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
\
if (localcanon != NULL && canon == NULL) \
{ \
- canonbuf = __strdup (localcanon); \
+ char *canonbuf = __strdup (localcanon); \
if (canonbuf == NULL) \
{ \
__resolv_context_put (res_ctx); \
@@ -323,6 +323,41 @@ getcanonname (nss_action_list nip, struct gaih_addrtuple *at, const char *name)
return __strdup (name);
}
+/* Process looked up canonical name and if necessary, decode to IDNA. Result
+ is a new string written to CANONP and the earlier string is freed. */
+
+static int
+process_canonname (const struct addrinfo *req, const char *orig_name,
+ char **canonp)
+{
+ char *canon = *canonp;
+
+ if ((req->ai_flags & AI_CANONNAME) != 0)
+ {
+ bool do_idn = req->ai_flags & AI_CANONIDN;
+ if (do_idn)
+ {
+ char *out;
+ int rc = __idna_from_dns_encoding (canon ?: orig_name, &out);
+ if (rc == 0)
+ {
+ free (canon);
+ canon = out;
+ }
+ else if (rc == EAI_IDN_ENCODE)
+ /* Use the punycode name as a fallback. */
+ do_idn = false;
+ else
+ return -rc;
+ }
+ if (!do_idn && canon == NULL && (canon = __strdup (orig_name)) == NULL)
+ return -EAI_MEMORY;
+ }
+
+ *canonp = canon;
+ return 0;
+}
+
static int
gaih_inet (const char *name, const struct gaih_service *service,
const struct addrinfo *req, struct addrinfo **pai,
@@ -332,7 +367,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct gaih_servtuple *st = (struct gaih_servtuple *) &nullserv;
struct gaih_addrtuple *at = NULL;
bool got_ipv6 = false;
- const char *canon = NULL;
+ char *canon = NULL;
const char *orig_name = name;
/* Reserve stack memory for the scratch buffer in the getaddrinfo
@@ -453,7 +488,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
bool malloc_name = false;
struct gaih_addrtuple *addrmem = NULL;
- char *canonbuf = NULL;
int result = 0;
if (name != NULL)
@@ -495,7 +529,15 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
if (req->ai_flags & AI_CANONNAME)
- canon = name;
+ {
+ char *canonbuf = __strdup (name);
+ if (canonbuf == NULL)
+ {
+ result = -EAI_MEMORY;
+ goto free_and_return;
+ }
+ canon = canonbuf;
+ }
goto process_list;
}
@@ -545,7 +587,15 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
if (req->ai_flags & AI_CANONNAME)
- canon = name;
+ {
+ char *canonbuf = __strdup (name);
+ if (canonbuf == NULL)
+ {
+ result = -EAI_MEMORY;
+ goto free_and_return;
+ }
+ canon = canonbuf;
+ }
goto process_list;
}
@@ -676,9 +726,9 @@ gaih_inet (const char *name, const struct gaih_service *service,
(*pat)->next = NULL;
if (added_canon || air->canon == NULL)
(*pat)->name = NULL;
- else if (canonbuf == NULL)
+ else if (canon == NULL)
{
- canonbuf = __strdup (air->canon);
+ char *canonbuf = __strdup (air->canon);
if (canonbuf == NULL)
{
result = -EAI_MEMORY;
@@ -748,9 +798,9 @@ gaih_inet (const char *name, const struct gaih_service *service,
/* Always start afresh; continue should discard previous results
and the hosts database does not support merge. */
at = NULL;
- free (canonbuf);
+ free (canon);
free (addrmem);
- canon = canonbuf = NULL;
+ canon = NULL;
addrmem = NULL;
got_ipv6 = false;
@@ -805,7 +855,16 @@ gaih_inet (const char *name, const struct gaih_service *service,
no_data = 1;
if ((req->ai_flags & AI_CANONNAME) != 0 && canon == NULL)
- canon = at->name;
+ {
+ char *canonbuf = __strdup (at->name);
+ if (canonbuf == NULL)
+ {
+ __resolv_context_put (res_ctx);
+ result = -EAI_MEMORY;
+ goto free_and_return;
+ }
+ canon = canonbuf;
+ }
struct gaih_addrtuple **pat = &at;
@@ -893,7 +952,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
if ((req->ai_flags & AI_CANONNAME) != 0
&& canon == NULL)
{
- canonbuf = getcanonname (nip, at, name);
+ char *canonbuf = getcanonname (nip, at, name);
if (canonbuf == NULL)
{
__resolv_context_put (res_ctx);
@@ -1004,6 +1063,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
{
+ /* Set up the canonical name if we need it. */
+ if ((result = process_canonname (req, orig_name, &canon)) != 0)
+ goto free_and_return;
+
struct gaih_servtuple *st2;
struct gaih_addrtuple *at2 = at;
size_t socklen;
@@ -1014,48 +1077,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
*/
while (at2 != NULL)
{
- /* Only the first entry gets the canonical name. */
- if (at2 == at && (req->ai_flags & AI_CANONNAME) != 0)
- {
- if (canon == NULL)
- /* If the canonical name cannot be determined, use
- the passed in string. */
- canon = orig_name;
-
- bool do_idn = req->ai_flags & AI_CANONIDN;
- if (do_idn)
- {
- char *out;
- int rc = __idna_from_dns_encoding (canon, &out);
- if (rc == 0)
- canon = out;
- else if (rc == EAI_IDN_ENCODE)
- /* Use the punycode name as a fallback. */
- do_idn = false;
- else
- {
- result = -rc;
- goto free_and_return;
- }
- }
- if (!do_idn)
- {
- if (canonbuf != NULL)
- /* We already allocated the string using malloc, but
- the buffer is now owned by canon. */
- canonbuf = NULL;
- else
- {
- canon = __strdup (canon);
- if (canon == NULL)
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- }
- }
- }
-
family = at2->family;
if (family == AF_INET6)
{
@@ -1078,7 +1099,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
if (ai == NULL)
{
- free ((char *) canon);
result = -EAI_MEMORY;
goto free_and_return;
}
@@ -1138,7 +1158,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (malloc_name)
free ((char *) name);
free (addrmem);
- free (canonbuf);
+ free (canon);
return result;
}

86
SOURCES/glibc-RHEL-2426-3.patch
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@ -0,0 +1,86 @@
commit f7efb43738f255db32cfa4e84a491c09f6da66e2
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Thu Mar 3 23:07:42 2022 +0530
getaddrinfo: Fix leak with AI_ALL [BZ #28852]
Use realloc in convert_hostent_to_gaih_addrtuple and fix up pointers in
the result list so that a single block is maintained for
hostbyname3_r/hostbyname2_r and freed in gaih_inet. This result is
never merged with any other results, since the hosts database does not
permit merging.
Resolves BZ #28852.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit 300460460706ce3ffe29a7df8966e68323ec5bf1)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 5c0d873e1d766099..ed70e6cb3944d219 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -189,19 +189,16 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
return 0;
}
-/* Convert struct hostent to a list of struct gaih_addrtuple objects.
- h_name is not copied, and the struct hostent object must not be
- deallocated prematurely. *RESULT must be NULL or a pointer to a
- linked-list. The new addresses are appended at the end. */
+/* Convert struct hostent to a list of struct gaih_addrtuple objects. h_name
+ is not copied, and the struct hostent object must not be deallocated
+ prematurely. The new addresses are appended to the tuple array in
+ RESULT. */
static bool
convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
int family,
struct hostent *h,
struct gaih_addrtuple **result)
{
- while (*result)
- result = &(*result)->next;
-
/* Count the number of addresses in h->h_addr_list. */
size_t count = 0;
for (char **p = h->h_addr_list; *p != NULL; ++p)
@@ -212,10 +209,30 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
if (count == 0 || h->h_length > sizeof (((struct gaih_addrtuple) {}).addr))
return true;
- struct gaih_addrtuple *array = calloc (count, sizeof (*array));
+ struct gaih_addrtuple *array = *result;
+ size_t old = 0;
+
+ while (array != NULL)
+ {
+ old++;
+ array = array->next;
+ }
+
+ array = realloc (*result, (old + count) * sizeof (*array));
+
if (array == NULL)
return false;
+ *result = array;
+
+ /* Update the next pointers on reallocation. */
+ for (size_t i = 0; i < old; i++)
+ array[i].next = array + i + 1;
+
+ array += old;
+
+ memset (array, 0, count * sizeof (*array));
+
for (size_t i = 0; i < count; ++i)
{
if (family == AF_INET && req->ai_family == AF_INET6)
@@ -235,7 +252,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
array[0].name = h->h_name;
array[count - 1].next = NULL;
- *result = array;
return true;
}

285
SOURCES/glibc-RHEL-2426-4.patch
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commit e05e5889b8a307fe4be55b03bcbd7a1c62fc2f2d
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Thu Feb 10 13:27:11 2022 +0530
gaih_inet: Simplify service resolution
Refactor the code to split out the service resolution code into a
separate function. Allocate the service tuples array just once to the
size of the typeproto array, thus avoiding the unnecessary pointer
chasing and stack allocations.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit 8d6cf99f2fb81a097f9334c125e5c23604af1a98)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index ed70e6cb3944d219..8c78ef9570fe0f58 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -100,14 +100,12 @@ struct gaih_service
struct gaih_servtuple
{
- struct gaih_servtuple *next;
int socktype;
int protocol;
int port;
+ bool set;
};
-static const struct gaih_servtuple nullserv;
-
struct gaih_typeproto
{
@@ -180,11 +178,11 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
}
while (r);
- st->next = NULL;
st->socktype = tp->socktype;
st->protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
? req->ai_protocol : tp->protocol);
st->port = s->s_port;
+ st->set = true;
return 0;
}
@@ -375,20 +373,11 @@ process_canonname (const struct addrinfo *req, const char *orig_name,
}
static int
-gaih_inet (const char *name, const struct gaih_service *service,
- const struct addrinfo *req, struct addrinfo **pai,
- unsigned int *naddrs, struct scratch_buffer *tmpbuf)
+get_servtuples (const struct gaih_service *service, const struct addrinfo *req,
+ struct gaih_servtuple *st, struct scratch_buffer *tmpbuf)
{
+ int i;
const struct gaih_typeproto *tp = gaih_inet_typeproto;
- struct gaih_servtuple *st = (struct gaih_servtuple *) &nullserv;
- struct gaih_addrtuple *at = NULL;
- bool got_ipv6 = false;
- char *canon = NULL;
- const char *orig_name = name;
-
- /* Reserve stack memory for the scratch buffer in the getaddrinfo
- function. */
- size_t alloca_used = sizeof (struct scratch_buffer);
if (req->ai_protocol || req->ai_socktype)
{
@@ -410,98 +399,88 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
}
- int port = 0;
- if (service != NULL)
+ if (service != NULL && (tp->protoflag & GAI_PROTO_NOSERVICE) != 0)
+ return -EAI_SERVICE;
+
+ if (service == NULL || service->num >= 0)
{
- if ((tp->protoflag & GAI_PROTO_NOSERVICE) != 0)
- return -EAI_SERVICE;
+ int port = service != NULL ? htons (service->num) : 0;
- if (service->num < 0)
+ if (req->ai_socktype || req->ai_protocol)
{
- if (tp->name[0])
- {
- st = (struct gaih_servtuple *)
- alloca_account (sizeof (struct gaih_servtuple), alloca_used);
-
- int rc = gaih_inet_serv (service->name, tp, req, st, tmpbuf);
- if (__glibc_unlikely (rc != 0))
- return rc;
- }
- else
- {
- struct gaih_servtuple **pst = &st;
- for (tp++; tp->name[0]; tp++)
- {
- struct gaih_servtuple *newp;
+ st[0].socktype = tp->socktype;
+ st[0].protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
+ ? req->ai_protocol : tp->protocol);
+ st[0].port = port;
+ st[0].set = true;
- if ((tp->protoflag & GAI_PROTO_NOSERVICE) != 0)
- continue;
+ return 0;
+ }
- if (req->ai_socktype != 0
- && req->ai_socktype != tp->socktype)
- continue;
- if (req->ai_protocol != 0
- && !(tp->protoflag & GAI_PROTO_PROTOANY)
- && req->ai_protocol != tp->protocol)
- continue;
+ /* Neither socket type nor protocol is set. Return all socket types
+ we know about. */
+ for (i = 0, ++tp; tp->name[0]; ++tp)
+ if (tp->defaultflag)
+ {
+ st[i].socktype = tp->socktype;
+ st[i].protocol = tp->protocol;
+ st[i].port = port;
+ st[i++].set = true;
+ }
- newp = (struct gaih_servtuple *)
- alloca_account (sizeof (struct gaih_servtuple),
- alloca_used);
+ return 0;
+ }
- if (gaih_inet_serv (service->name,
- tp, req, newp, tmpbuf) != 0)
- continue;
+ if (tp->name[0])
+ return gaih_inet_serv (service->name, tp, req, st, tmpbuf);
- *pst = newp;
- pst = &(newp->next);
- }
- if (st == (struct gaih_servtuple *) &nullserv)
- return -EAI_SERVICE;
- }
- }
- else
- {
- port = htons (service->num);
- goto got_port;
- }
- }
- else
+ for (i = 0, tp++; tp->name[0]; tp++)
{
- got_port:
+ if ((tp->protoflag & GAI_PROTO_NOSERVICE) != 0)
+ continue;
- if (req->ai_socktype || req->ai_protocol)
- {
- st = alloca_account (sizeof (struct gaih_servtuple), alloca_used);
- st->next = NULL;
- st->socktype = tp->socktype;
- st->protocol = ((tp->protoflag & GAI_PROTO_PROTOANY)
- ? req->ai_protocol : tp->protocol);
- st->port = port;
- }
- else
- {
- /* Neither socket type nor protocol is set. Return all socket types
- we know about. */
- struct gaih_servtuple **lastp = &st;
- for (++tp; tp->name[0]; ++tp)
- if (tp->defaultflag)
- {
- struct gaih_servtuple *newp;
+ if (req->ai_socktype != 0
+ && req->ai_socktype != tp->socktype)
+ continue;
+ if (req->ai_protocol != 0
+ && !(tp->protoflag & GAI_PROTO_PROTOANY)
+ && req->ai_protocol != tp->protocol)
+ continue;
- newp = alloca_account (sizeof (struct gaih_servtuple),
- alloca_used);
- newp->next = NULL;
- newp->socktype = tp->socktype;
- newp->protocol = tp->protocol;
- newp->port = port;
+ if (gaih_inet_serv (service->name,
+ tp, req, &st[i], tmpbuf) != 0)
+ continue;
- *lastp = newp;
- lastp = &newp->next;
- }
- }
+ i++;
}
+ if (!st[0].set)
+ return -EAI_SERVICE;
+
+ return 0;
+}
+
+static int
+gaih_inet (const char *name, const struct gaih_service *service,
+ const struct addrinfo *req, struct addrinfo **pai,
+ unsigned int *naddrs, struct scratch_buffer *tmpbuf)
+{
+ struct gaih_servtuple st[sizeof (gaih_inet_typeproto)
+ / sizeof (struct gaih_typeproto)] = {0};
+
+ struct gaih_addrtuple *at = NULL;
+ bool got_ipv6 = false;
+ char *canon = NULL;
+ const char *orig_name = name;
+
+ /* Reserve stack memory for the scratch buffer in the getaddrinfo
+ function. */
+ size_t alloca_used = sizeof (struct scratch_buffer);
+
+ int rc;
+ if ((rc = get_servtuples (service, req, st, tmpbuf)) != 0)
+ return rc;
+
bool malloc_name = false;
struct gaih_addrtuple *addrmem = NULL;
int result = 0;
@@ -1083,7 +1062,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
if ((result = process_canonname (req, orig_name, &canon)) != 0)
goto free_and_return;
- struct gaih_servtuple *st2;
struct gaih_addrtuple *at2 = at;
size_t socklen;
sa_family_t family;
@@ -1109,7 +1087,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
else
socklen = sizeof (struct sockaddr_in);
- for (st2 = st; st2 != NULL; st2 = st2->next)
+ for (int i = 0; st[i].set; i++)
{
struct addrinfo *ai;
ai = *pai = malloc (sizeof (struct addrinfo) + socklen);
@@ -1121,8 +1099,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
ai->ai_flags = req->ai_flags;
ai->ai_family = family;
- ai->ai_socktype = st2->socktype;
- ai->ai_protocol = st2->protocol;
+ ai->ai_socktype = st[i].socktype;
+ ai->ai_protocol = st[i].protocol;
ai->ai_addrlen = socklen;
ai->ai_addr = (void *) (ai + 1);
@@ -1144,7 +1122,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct sockaddr_in6 *sin6p =
(struct sockaddr_in6 *) ai->ai_addr;
- sin6p->sin6_port = st2->port;
+ sin6p->sin6_port = st[i].port;
sin6p->sin6_flowinfo = 0;
memcpy (&sin6p->sin6_addr,
at2->addr, sizeof (struct in6_addr));
@@ -1154,7 +1132,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
{
struct sockaddr_in *sinp =
(struct sockaddr_in *) ai->ai_addr;
- sinp->sin_port = st2->port;
+ sinp->sin_port = st[i].port;
memcpy (&sinp->sin_addr,
at2->addr, sizeof (struct in_addr));
memset (sinp->sin_zero, '\0', sizeof (sinp->sin_zero));

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@ -0,0 +1,179 @@
commit 3b5a3e5009088a029525277f36228eeb95032358
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Fri Mar 4 14:57:12 2022 +0530
gaih_inet: Split simple gethostbyname into its own function
Add a free_at flag in gaih_result to indicate if res.at needs to be
freed by the caller.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit b44389cb7fa28a59804571dac09cc32ebfac03d1)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 57b6834c8bb3887c..3870b2dc2edc89cd 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -120,6 +120,7 @@ struct gaih_result
{
struct gaih_addrtuple *at;
char *canon;
+ bool free_at;
};
/* Values for `protoflag'. */
@@ -565,6 +566,62 @@ out:
return result;
}
+/* If possible, call the simple, old functions, which do not support IPv6 scope
+ ids, nor retrieving the canonical name. */
+
+static int
+try_simple_gethostbyname (const char *name, const struct addrinfo *req,
+ struct scratch_buffer *tmpbuf,
+ struct gaih_result *res)
+{
+ res->at = NULL;
+
+ if (req->ai_family != AF_INET || (req->ai_flags & AI_CANONNAME) != 0)
+ return 0;
+
+ int rc;
+ struct hostent th;
+ struct hostent *h;
+
+ while (1)
+ {
+ rc = __gethostbyname2_r (name, AF_INET, &th, tmpbuf->data,
+ tmpbuf->length, &h, &h_errno);
+ if (rc != ERANGE || h_errno != NETDB_INTERNAL)
+ break;
+ if (!scratch_buffer_grow (tmpbuf))
+ return -EAI_MEMORY;
+ }
+
+ if (rc == 0)
+ {
+ if (h != NULL)
+ {
+ /* We found data, convert it. RES->AT from the conversion will
+ either be an allocated block or NULL, both of which are safe to
+ pass to free (). */
+ if (!convert_hostent_to_gaih_addrtuple (req, AF_INET, h, &res->at))
+ return -EAI_MEMORY;
+
+ res->free_at = true;
+ return 0;
+ }
+ if (h_errno == NO_DATA)
+ return -EAI_NODATA;
+
+ return -EAI_NONAME;
+ }
+
+ if (h_errno == NETDB_INTERNAL)
+ return -EAI_SYSTEM;
+ if (h_errno == TRY_AGAIN)
+ return -EAI_AGAIN;
+
+ /* We made requests but they turned out no data.
+ The name is known, though. */
+ return -EAI_NODATA;
+}
+
static int
gaih_inet (const char *name, const struct gaih_service *service,
const struct addrinfo *req, struct addrinfo **pai,
@@ -610,6 +667,11 @@ gaih_inet (const char *name, const struct gaih_service *service,
else if (res.at != NULL)
goto process_list;
+ if ((result = try_simple_gethostbyname (name, req, tmpbuf, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
+
int no_data = 0;
int no_inet6_data = 0;
nss_action_list nip;
@@ -619,69 +681,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct resolv_context *res_ctx = NULL;
bool do_merge = false;
- /* If we do not have to look for IPv6 addresses or the canonical
- name, use the simple, old functions, which do not support
- IPv6 scope ids, nor retrieving the canonical name. */
- if (req->ai_family == AF_INET
- && (req->ai_flags & AI_CANONNAME) == 0)
- {
- int rc;
- struct hostent th;
- struct hostent *h;
-
- while (1)
- {
- rc = __gethostbyname2_r (name, AF_INET, &th,
- tmpbuf->data, tmpbuf->length,
- &h, &h_errno);
- if (rc != ERANGE || h_errno != NETDB_INTERNAL)
- break;
- if (!scratch_buffer_grow (tmpbuf))
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- }
-
- if (rc == 0)
- {
- if (h != NULL)
- {
- /* We found data, convert it. */
- if (!convert_hostent_to_gaih_addrtuple
- (req, AF_INET, h, &addrmem))
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- res.at = addrmem;
- }
- else
- {
- if (h_errno == NO_DATA)
- result = -EAI_NODATA;
- else
- result = -EAI_NONAME;
- goto free_and_return;
- }
- }
- else
- {
- if (h_errno == NETDB_INTERNAL)
- result = -EAI_SYSTEM;
- else if (h_errno == TRY_AGAIN)
- result = -EAI_AGAIN;
- else
- /* We made requests but they turned out no data.
- The name is known, though. */
- result = -EAI_NODATA;
-
- goto free_and_return;
- }
-
- goto process_list;
- }
-
#ifdef USE_NSCD
if (__nss_not_use_nscd_hosts > 0
&& ++__nss_not_use_nscd_hosts > NSS_NSCD_RETRY)
@@ -1165,6 +1164,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (malloc_name)
free ((char *) name);
free (addrmem);
+ if (res.free_at)
+ free (res.at);
free (res.canon);
return result;

328
SOURCES/glibc-RHEL-2426-7.patch
Unescape View File

@ -0,0 +1,328 @@
commit 5914a1d55b468ccf0fb6d997a7a4e378339df735
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 15:53:45 2022 +0530
gaih_inet: Split nscd lookup code into its own function.
Add a new member got_ipv6 to indicate if the results have an IPv6
result and use it instead of the local got_ipv6.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit e7e5315b7fa065a9c8bf525ca9a32f46fa4837e5)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 3870b2dc2edc89cd..7c497a88f8b5b9f8 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -121,6 +121,7 @@ struct gaih_result
struct gaih_addrtuple *at;
char *canon;
bool free_at;
+ bool got_ipv6;
};
/* Values for `protoflag'. */
@@ -316,7 +317,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
res.canon = canonbuf; \
} \
if (_family == AF_INET6 && *pat != NULL) \
- got_ipv6 = true; \
+ res.got_ipv6 = true; \
} \
}
@@ -467,6 +468,128 @@ get_servtuples (const struct gaih_service *service, const struct addrinfo *req,
return 0;
}
+#ifdef USE_NSCD
+/* Query addresses from nscd cache, returning a non-zero value on error.
+ RES members have the lookup result; RES->AT is NULL if there were no errors
+ but also no results. */
+
+static int
+get_nscd_addresses (const char *name, const struct addrinfo *req,
+ struct gaih_result *res)
+{
+ if (__nss_not_use_nscd_hosts > 0
+ && ++__nss_not_use_nscd_hosts > NSS_NSCD_RETRY)
+ __nss_not_use_nscd_hosts = 0;
+
+ res->at = NULL;
+
+ if (__nss_not_use_nscd_hosts || __nss_database_custom[NSS_DBSIDX_hosts])
+ return 0;
+
+ /* Try to use nscd. */
+ struct nscd_ai_result *air = NULL;
+ int err = __nscd_getai (name, &air, &h_errno);
+
+ if (__glibc_unlikely (air == NULL))
+ {
+ /* The database contains a negative entry. */
+ if (err == 0)
+ return -EAI_NONAME;
+ if (__nss_not_use_nscd_hosts == 0)
+ {
+ if (h_errno == NETDB_INTERNAL && errno == ENOMEM)
+ return -EAI_MEMORY;
+ if (h_errno == TRY_AGAIN)
+ return -EAI_AGAIN;
+ return -EAI_SYSTEM;
+ }
+ return 0;
+ }
+
+ /* Transform into gaih_addrtuple list. */
+ int result = 0;
+ char *addrs = air->addrs;
+
+ struct gaih_addrtuple *addrfree = calloc (air->naddrs, sizeof (*addrfree));
+ struct gaih_addrtuple *at = calloc (air->naddrs, sizeof (*at));
+ if (at == NULL)
+ {
+ result = -EAI_MEMORY;
+ goto out;
+ }
+
+ res->free_at = true;
+
+ int count = 0;
+ for (int i = 0; i < air->naddrs; ++i)
+ {
+ socklen_t size = (air->family[i] == AF_INET
+ ? INADDRSZ : IN6ADDRSZ);
+
+ if (!((air->family[i] == AF_INET
+ && req->ai_family == AF_INET6
+ && (req->ai_flags & AI_V4MAPPED) != 0)
+ || req->ai_family == AF_UNSPEC
+ || air->family[i] == req->ai_family))
+ {
+ /* Skip over non-matching result. */
+ addrs += size;
+ continue;
+ }
+
+ if (air->family[i] == AF_INET && req->ai_family == AF_INET6
+ && (req->ai_flags & AI_V4MAPPED))
+ {
+ at[count].family = AF_INET6;
+ at[count].addr[3] = *(uint32_t *) addrs;
+ at[count].addr[2] = htonl (0xffff);
+ }
+ else if (req->ai_family == AF_UNSPEC
+ || air->family[count] == req->ai_family)
+ {
+ at[count].family = air->family[count];
+ memcpy (at[count].addr, addrs, size);
+ if (air->family[count] == AF_INET6)
+ res->got_ipv6 = true;
+ }
+ at[count].next = at + count + 1;
+ count++;
+ addrs += size;
+ }
+
+ if ((req->ai_flags & AI_CANONNAME) && air->canon != NULL)
+ {
+ char *canonbuf = __strdup (air->canon);
+ if (canonbuf == NULL)
+ {
+ result = -EAI_MEMORY;
+ goto out;
+ }
+ res->canon = canonbuf;
+ }
+
+ if (count == 0)
+ {
+ result = -EAI_NONAME;
+ goto out;
+ }
+
+ at[count - 1].next = NULL;
+
+ res->at = at;
+
+out:
+ free (air);
+ if (result != 0)
+ {
+ free (at);
+ res->free_at = false;
+ }
+
+ return result;
+}
+#endif
+
/* Convert numeric addresses to binary into RES. On failure, RES->AT is set to
NULL and an error code is returned. If AI_NUMERIC_HOST is not requested and
the function cannot determine a result, RES->AT is set to NULL and 0
@@ -630,7 +753,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct gaih_servtuple st[sizeof (gaih_inet_typeproto)
/ sizeof (struct gaih_typeproto)] = {0};
- bool got_ipv6 = false;
const char *orig_name = name;
/* Reserve stack memory for the scratch buffer in the getaddrinfo
@@ -672,6 +794,13 @@ gaih_inet (const char *name, const struct gaih_service *service,
else if (res.at != NULL)
goto process_list;
+#ifdef USE_NSCD
+ if ((result = get_nscd_addresses (name, req, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
+#endif
+
int no_data = 0;
int no_inet6_data = 0;
nss_action_list nip;
@@ -681,115 +810,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
struct resolv_context *res_ctx = NULL;
bool do_merge = false;
-#ifdef USE_NSCD
- if (__nss_not_use_nscd_hosts > 0
- && ++__nss_not_use_nscd_hosts > NSS_NSCD_RETRY)
- __nss_not_use_nscd_hosts = 0;
-
- if (!__nss_not_use_nscd_hosts
- && !__nss_database_custom[NSS_DBSIDX_hosts])
- {
- /* Try to use nscd. */
- struct nscd_ai_result *air = NULL;
- int err = __nscd_getai (name, &air, &h_errno);
- if (air != NULL)
- {
- /* Transform into gaih_addrtuple list. */
- bool added_canon = (req->ai_flags & AI_CANONNAME) == 0;
- char *addrs = air->addrs;
-
- addrmem = calloc (air->naddrs, sizeof (*addrmem));
- if (addrmem == NULL)
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
-
- struct gaih_addrtuple *addrfree = addrmem;
- struct gaih_addrtuple **pat = &res.at;
-
- for (int i = 0; i < air->naddrs; ++i)
- {
- socklen_t size = (air->family[i] == AF_INET
- ? INADDRSZ : IN6ADDRSZ);
-
- if (!((air->family[i] == AF_INET
- && req->ai_family == AF_INET6
- && (req->ai_flags & AI_V4MAPPED) != 0)
- || req->ai_family == AF_UNSPEC
- || air->family[i] == req->ai_family))
- {
- /* Skip over non-matching result. */
- addrs += size;
- continue;
- }
-
- if (*pat == NULL)
- {
- *pat = addrfree++;
- (*pat)->scopeid = 0;
- }
- uint32_t *pataddr = (*pat)->addr;
- (*pat)->next = NULL;
- if (added_canon || air->canon == NULL)
- (*pat)->name = NULL;
- else if (res.canon == NULL)
- {
- char *canonbuf = __strdup (air->canon);
- if (canonbuf == NULL)
- {
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- res.canon = (*pat)->name = canonbuf;
- }
-
- if (air->family[i] == AF_INET
- && req->ai_family == AF_INET6
- && (req->ai_flags & AI_V4MAPPED))
- {
- (*pat)->family = AF_INET6;
- pataddr[3] = *(uint32_t *) addrs;
- pataddr[2] = htonl (0xffff);
- pataddr[1] = 0;
- pataddr[0] = 0;
- pat = &((*pat)->next);
- added_canon = true;
- }
- else if (req->ai_family == AF_UNSPEC
- || air->family[i] == req->ai_family)
- {
- (*pat)->family = air->family[i];
- memcpy (pataddr, addrs, size);
- pat = &((*pat)->next);
- added_canon = true;
- if (air->family[i] == AF_INET6)
- got_ipv6 = true;
- }
- addrs += size;
- }
-
- free (air);
-
- goto process_list;
- }
- else if (err == 0)
- /* The database contains a negative entry. */
- goto free_and_return;
- else if (__nss_not_use_nscd_hosts == 0)
- {
- if (h_errno == NETDB_INTERNAL && errno == ENOMEM)
- result = -EAI_MEMORY;
- else if (h_errno == TRY_AGAIN)
- result = -EAI_AGAIN;
- else
- result = -EAI_SYSTEM;
-
- goto free_and_return;
- }
- }
-#endif
-
no_more = !__nss_database_get (nss_database_hosts, &nip);
/* If we are looking for both IPv4 and IPv6 address we don't
@@ -897,7 +917,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
no_data = 0;
if (req->ai_family == AF_INET6)
- got_ipv6 = true;
+ res.got_ipv6 = true;
}
else
*pat = ((*pat)->next);
@@ -940,7 +960,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
&& (req->ai_flags & AI_V4MAPPED)
/* Avoid generating the mapped addresses if we
know we are not going to need them. */
- && ((req->ai_flags & AI_ALL) || !got_ipv6)))
+ && ((req->ai_flags & AI_ALL) || !res.got_ipv6)))
{
gethosts (AF_INET);
@@ -1091,7 +1111,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
/* If we looked up IPv4 mapped address discard them here if
the caller isn't interested in all address and we have
found at least one IPv6 address. */
- if (got_ipv6
+ if (res.got_ipv6
&& (req->ai_flags & (AI_V4MAPPED|AI_ALL)) == AI_V4MAPPED
&& IN6_IS_ADDR_V4MAPPED (at2->addr))
goto ignore;

673
SOURCES/glibc-RHEL-2426-8.patch
Unescape View File

@ -0,0 +1,673 @@
commit ec71cb961121760f81e55af5489e658dc89e96e6
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 15:56:22 2022 +0530
gaih_inet: separate nss lookup loop into its own function
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit 906cecbe0889e601c91d9aba738049c73ebe4dd2)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 7c497a88f8b5b9f8..145ea6fa381ad14b 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -159,6 +159,14 @@ static const struct addrinfo default_hints =
.ai_next = NULL
};
+static void
+gaih_result_reset (struct gaih_result *res)
+{
+ if (res->free_at)
+ free (res->at);
+ free (res->canon);
+ memset (res, 0, sizeof (*res));
+}
static int
gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
@@ -197,13 +205,10 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
/* Convert struct hostent to a list of struct gaih_addrtuple objects. h_name
is not copied, and the struct hostent object must not be deallocated
- prematurely. The new addresses are appended to the tuple array in
- RESULT. */
+ prematurely. The new addresses are appended to the tuple array in RES. */
static bool
-convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
- int family,
- struct hostent *h,
- struct gaih_addrtuple **result)
+convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family,
+ struct hostent *h, struct gaih_result *res)
{
/* Count the number of addresses in h->h_addr_list. */
size_t count = 0;
@@ -215,7 +220,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
if (count == 0 || h->h_length > sizeof (((struct gaih_addrtuple) {}).addr))
return true;
- struct gaih_addrtuple *array = *result;
+ struct gaih_addrtuple *array = res->at;
size_t old = 0;
while (array != NULL)
@@ -224,12 +229,14 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
array = array->next;
}
- array = realloc (*result, (old + count) * sizeof (*array));
+ array = realloc (res->at, (old + count) * sizeof (*array));
if (array == NULL)
return false;
- *result = array;
+ res->got_ipv6 = family == AF_INET6;
+ res->at = array;
+ res->free_at = true;
/* Update the next pointers on reallocation. */
for (size_t i = 0; i < old; i++)
@@ -278,7 +285,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
{ \
__resolv_context_put (res_ctx); \
result = -EAI_MEMORY; \
- goto free_and_return; \
+ goto out; \
} \
} \
if (status == NSS_STATUS_NOTFOUND \
@@ -288,7 +295,7 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
{ \
__resolv_context_put (res_ctx); \
result = -EAI_SYSTEM; \
- goto free_and_return; \
+ goto out; \
} \
if (h_errno == TRY_AGAIN) \
no_data = EAI_AGAIN; \
@@ -297,27 +304,24 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
} \
else if (status == NSS_STATUS_SUCCESS) \
{ \
- if (!convert_hostent_to_gaih_addrtuple (req, _family, &th, &addrmem)) \
+ if (!convert_hostent_to_gaih_addrtuple (req, _family, &th, res)) \
{ \
__resolv_context_put (res_ctx); \
result = -EAI_SYSTEM; \
- goto free_and_return; \
+ goto out; \
} \
- *pat = addrmem; \
\
- if (localcanon != NULL && res.canon == NULL) \
+ if (localcanon != NULL && res->canon == NULL) \
{ \
char *canonbuf = __strdup (localcanon); \
if (canonbuf == NULL) \
{ \
__resolv_context_put (res_ctx); \
result = -EAI_SYSTEM; \
- goto free_and_return; \
+ goto out; \
} \
- res.canon = canonbuf; \
+ res->canon = canonbuf; \
} \
- if (_family == AF_INET6 && *pat != NULL) \
- res.got_ipv6 = true; \
} \
}
@@ -590,6 +594,260 @@ out:
}
#endif
+static int
+get_nss_addresses (const char *name, const struct addrinfo *req,
+ struct scratch_buffer *tmpbuf, struct gaih_result *res)
+{
+ int no_data = 0;
+ int no_inet6_data = 0;
+ nss_action_list nip;
+ enum nss_status inet6_status = NSS_STATUS_UNAVAIL;
+ enum nss_status status = NSS_STATUS_UNAVAIL;
+ int no_more;
+ struct resolv_context *res_ctx = NULL;
+ bool do_merge = false;
+ int result = 0;
+
+ no_more = !__nss_database_get (nss_database_hosts, &nip);
+
+ /* If we are looking for both IPv4 and IPv6 address we don't
+ want the lookup functions to automatically promote IPv4
+ addresses to IPv6 addresses, so we use the no_inet6
+ function variant. */
+ res_ctx = __resolv_context_get ();
+ if (res_ctx == NULL)
+ no_more = 1;
+
+ while (!no_more)
+ {
+ /* Always start afresh; continue should discard previous results
+ and the hosts database does not support merge. */
+ gaih_result_reset (res);
+
+ if (do_merge)
+ {
+ __set_h_errno (NETDB_INTERNAL);
+ __set_errno (EBUSY);
+ break;
+ }
+
+ no_data = 0;
+ nss_gethostbyname4_r *fct4 = NULL;
+
+ /* gethostbyname4_r sends out parallel A and AAAA queries and
+ is thus only suitable for PF_UNSPEC. */
+ if (req->ai_family == PF_UNSPEC)
+ fct4 = __nss_lookup_function (nip, "gethostbyname4_r");
+
+ if (fct4 != NULL)
+ {
+ while (1)
+ {
+ status = DL_CALL_FCT (fct4, (name, &res->at,
+ tmpbuf->data, tmpbuf->length,
+ &errno, &h_errno,
+ NULL));
+ if (status == NSS_STATUS_SUCCESS)
+ break;
+ /* gethostbyname4_r may write into AT, so reset it. */
+ res->at = NULL;
+ if (status != NSS_STATUS_TRYAGAIN
+ || errno != ERANGE || h_errno != NETDB_INTERNAL)
+ {
+ if (h_errno == TRY_AGAIN)
+ no_data = EAI_AGAIN;
+ else
+ no_data = h_errno == NO_DATA;
+ break;
+ }
+
+ if (!scratch_buffer_grow (tmpbuf))
+ {
+ __resolv_context_put (res_ctx);
+ result = -EAI_MEMORY;
+ goto out;
+ }
+ }
+
+ if (status == NSS_STATUS_SUCCESS)
+ {
+ assert (!no_data);
+ no_data = 1;
+
+ if ((req->ai_flags & AI_CANONNAME) != 0 && res->canon == NULL)
+ {
+ char *canonbuf = __strdup (res->at->name);
+ if (canonbuf == NULL)
+ {
+ __resolv_context_put (res_ctx);
+ result = -EAI_MEMORY;
+ goto out;
+ }
+ res->canon = canonbuf;
+ }
+
+ struct gaih_addrtuple **pat = &res->at;
+
+ while (*pat != NULL)
+ {
+ if ((*pat)->family == AF_INET
+ && req->ai_family == AF_INET6
+ && (req->ai_flags & AI_V4MAPPED) != 0)
+ {
+ uint32_t *pataddr = (*pat)->addr;
+ (*pat)->family = AF_INET6;
+ pataddr[3] = pataddr[0];
+ pataddr[2] = htonl (0xffff);
+ pataddr[1] = 0;
+ pataddr[0] = 0;
+ pat = &((*pat)->next);
+ no_data = 0;
+ }
+ else if (req->ai_family == AF_UNSPEC
+ || (*pat)->family == req->ai_family)
+ {
+ pat = &((*pat)->next);
+
+ no_data = 0;
+ if (req->ai_family == AF_INET6)
+ res->got_ipv6 = true;
+ }
+ else
+ *pat = ((*pat)->next);
+ }
+ }
+
+ no_inet6_data = no_data;
+ }
+ else
+ {
+ nss_gethostbyname3_r *fct = NULL;
+ if (req->ai_flags & AI_CANONNAME)
+ /* No need to use this function if we do not look for
+ the canonical name. The function does not exist in
+ all NSS modules and therefore the lookup would
+ often fail. */
+ fct = __nss_lookup_function (nip, "gethostbyname3_r");
+ if (fct == NULL)
+ /* We are cheating here. The gethostbyname2_r
+ function does not have the same interface as
+ gethostbyname3_r but the extra arguments the
+ latter takes are added at the end. So the
+ gethostbyname2_r code will just ignore them. */
+ fct = __nss_lookup_function (nip, "gethostbyname2_r");
+
+ if (fct != NULL)
+ {
+ if (req->ai_family == AF_INET6
+ || req->ai_family == AF_UNSPEC)
+ {
+ gethosts (AF_INET6);
+ no_inet6_data = no_data;
+ inet6_status = status;
+ }
+ if (req->ai_family == AF_INET
+ || req->ai_family == AF_UNSPEC
+ || (req->ai_family == AF_INET6
+ && (req->ai_flags & AI_V4MAPPED)
+ /* Avoid generating the mapped addresses if we
+ know we are not going to need them. */
+ && ((req->ai_flags & AI_ALL) || !res->got_ipv6)))
+ {
+ gethosts (AF_INET);
+
+ if (req->ai_family == AF_INET)
+ {
+ no_inet6_data = no_data;
+ inet6_status = status;
+ }
+ }
+
+ /* If we found one address for AF_INET or AF_INET6,
+ don't continue the search. */
+ if (inet6_status == NSS_STATUS_SUCCESS
+ || status == NSS_STATUS_SUCCESS)
+ {
+ if ((req->ai_flags & AI_CANONNAME) != 0
+ && res->canon == NULL)
+ {
+ char *canonbuf = getcanonname (nip, res->at, name);
+ if (canonbuf == NULL)
+ {
+ __resolv_context_put (res_ctx);
+ result = -EAI_MEMORY;
+ goto out;
+ }
+ res->canon = canonbuf;
+ }
+ status = NSS_STATUS_SUCCESS;
+ }
+ else
+ {
+ /* We can have different states for AF_INET and
+ AF_INET6. Try to find a useful one for both. */
+ if (inet6_status == NSS_STATUS_TRYAGAIN)
+ status = NSS_STATUS_TRYAGAIN;
+ else if (status == NSS_STATUS_UNAVAIL
+ && inet6_status != NSS_STATUS_UNAVAIL)
+ status = inet6_status;
+ }
+ }
+ else
+ {
+ /* Could not locate any of the lookup functions.
+ The NSS lookup code does not consistently set
+ errno, so we need to supply our own error
+ code here. The root cause could either be a
+ resource allocation failure, or a missing
+ service function in the DSO (so it should not
+ be listed in /etc/nsswitch.conf). Assume the
+ former, and return EBUSY. */
+ status = NSS_STATUS_UNAVAIL;
+ __set_h_errno (NETDB_INTERNAL);
+ __set_errno (EBUSY);
+ }
+ }
+
+ if (nss_next_action (nip, status) == NSS_ACTION_RETURN)
+ break;
+
+ /* The hosts database does not support MERGE. */
+ if (nss_next_action (nip, status) == NSS_ACTION_MERGE)
+ do_merge = true;
+
+ nip++;
+ if (nip->module == NULL)
+ no_more = -1;
+ }
+
+ __resolv_context_put (res_ctx);
+
+ /* If we have a failure which sets errno, report it using
+ EAI_SYSTEM. */
+ if ((status == NSS_STATUS_TRYAGAIN || status == NSS_STATUS_UNAVAIL)
+ && h_errno == NETDB_INTERNAL)
+ {
+ result = -EAI_SYSTEM;
+ goto out;
+ }
+
+ if (no_data != 0 && no_inet6_data != 0)
+ {
+ /* If both requests timed out report this. */
+ if (no_data == EAI_AGAIN && no_inet6_data == EAI_AGAIN)
+ result = -EAI_AGAIN;
+ else
+ /* We made requests but they turned out no data. The name
+ is known, though. */
+ result = -EAI_NODATA;
+ }
+
+out:
+ if (result != 0)
+ gaih_result_reset (res);
+ return result;
+}
+
/* Convert numeric addresses to binary into RES. On failure, RES->AT is set to
NULL and an error code is returned. If AI_NUMERIC_HOST is not requested and
the function cannot determine a result, RES->AT is set to NULL and 0
@@ -723,7 +981,7 @@ try_simple_gethostbyname (const char *name, const struct addrinfo *req,
/* We found data, convert it. RES->AT from the conversion will
either be an allocated block or NULL, both of which are safe to
pass to free (). */
- if (!convert_hostent_to_gaih_addrtuple (req, AF_INET, h, &res->at))
+ if (!convert_hostent_to_gaih_addrtuple (req, AF_INET, h, res))
return -EAI_MEMORY;
res->free_at = true;
@@ -801,264 +1059,14 @@ gaih_inet (const char *name, const struct gaih_service *service,
goto process_list;
#endif
- int no_data = 0;
- int no_inet6_data = 0;
- nss_action_list nip;
- enum nss_status inet6_status = NSS_STATUS_UNAVAIL;
- enum nss_status status = NSS_STATUS_UNAVAIL;
- int no_more;
- struct resolv_context *res_ctx = NULL;
- bool do_merge = false;
-
- no_more = !__nss_database_get (nss_database_hosts, &nip);
-
- /* If we are looking for both IPv4 and IPv6 address we don't
- want the lookup functions to automatically promote IPv4
- addresses to IPv6 addresses, so we use the no_inet6
- function variant. */
- res_ctx = __resolv_context_get ();
- if (res_ctx == NULL)
- no_more = 1;
-
- while (!no_more)
- {
- /* Always start afresh; continue should discard previous results
- and the hosts database does not support merge. */
- res.at = NULL;
- free (res.canon);
- free (addrmem);
- res.canon = NULL;
- addrmem = NULL;
- got_ipv6 = false;
-
- if (do_merge)
- {
- __set_h_errno (NETDB_INTERNAL);
- __set_errno (EBUSY);
- break;
- }
-
- no_data = 0;
- nss_gethostbyname4_r *fct4 = NULL;
-
- /* gethostbyname4_r sends out parallel A and AAAA queries and
- is thus only suitable for PF_UNSPEC. */
- if (req->ai_family == PF_UNSPEC)
- fct4 = __nss_lookup_function (nip, "gethostbyname4_r");
-
- if (fct4 != NULL)
- {
- while (1)
- {
- status = DL_CALL_FCT (fct4, (name, &res.at,
- tmpbuf->data, tmpbuf->length,
- &errno, &h_errno,
- NULL));
- if (status == NSS_STATUS_SUCCESS)
- break;
- /* gethostbyname4_r may write into AT, so reset it. */
- res.at = NULL;
- if (status != NSS_STATUS_TRYAGAIN
- || errno != ERANGE || h_errno != NETDB_INTERNAL)
- {
- if (h_errno == TRY_AGAIN)
- no_data = EAI_AGAIN;
- else
- no_data = h_errno == NO_DATA;
- break;
- }
-
- if (!scratch_buffer_grow (tmpbuf))
- {
- __resolv_context_put (res_ctx);
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- }
-
- if (status == NSS_STATUS_SUCCESS)
- {
- assert (!no_data);
- no_data = 1;
-
- if ((req->ai_flags & AI_CANONNAME) != 0 && res.canon == NULL)
- {
- char *canonbuf = __strdup (res.at->name);
- if (canonbuf == NULL)
- {
- __resolv_context_put (res_ctx);
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- res.canon = canonbuf;
- }
-
- struct gaih_addrtuple **pat = &res.at;
-
- while (*pat != NULL)
- {
- if ((*pat)->family == AF_INET
- && req->ai_family == AF_INET6
- && (req->ai_flags & AI_V4MAPPED) != 0)
- {
- uint32_t *pataddr = (*pat)->addr;
- (*pat)->family = AF_INET6;
- pataddr[3] = pataddr[0];
- pataddr[2] = htonl (0xffff);
- pataddr[1] = 0;
- pataddr[0] = 0;
- pat = &((*pat)->next);
- no_data = 0;
- }
- else if (req->ai_family == AF_UNSPEC
- || (*pat)->family == req->ai_family)
- {
- pat = &((*pat)->next);
-
- no_data = 0;
- if (req->ai_family == AF_INET6)
- res.got_ipv6 = true;
- }
- else
- *pat = ((*pat)->next);
- }
- }
-
- no_inet6_data = no_data;
- }
- else
- {
- nss_gethostbyname3_r *fct = NULL;
- if (req->ai_flags & AI_CANONNAME)
- /* No need to use this function if we do not look for
- the canonical name. The function does not exist in
- all NSS modules and therefore the lookup would
- often fail. */
- fct = __nss_lookup_function (nip, "gethostbyname3_r");
- if (fct == NULL)
- /* We are cheating here. The gethostbyname2_r
- function does not have the same interface as
- gethostbyname3_r but the extra arguments the
- latter takes are added at the end. So the
- gethostbyname2_r code will just ignore them. */
- fct = __nss_lookup_function (nip, "gethostbyname2_r");
-
- if (fct != NULL)
- {
- struct gaih_addrtuple **pat = &res.at;
-
- if (req->ai_family == AF_INET6
- || req->ai_family == AF_UNSPEC)
- {
- gethosts (AF_INET6);
- no_inet6_data = no_data;
- inet6_status = status;
- }
- if (req->ai_family == AF_INET
- || req->ai_family == AF_UNSPEC
- || (req->ai_family == AF_INET6
- && (req->ai_flags & AI_V4MAPPED)
- /* Avoid generating the mapped addresses if we
- know we are not going to need them. */
- && ((req->ai_flags & AI_ALL) || !res.got_ipv6)))
- {
- gethosts (AF_INET);
-
- if (req->ai_family == AF_INET)
- {
- no_inet6_data = no_data;
- inet6_status = status;
- }
- }
-
- /* If we found one address for AF_INET or AF_INET6,
- don't continue the search. */
- if (inet6_status == NSS_STATUS_SUCCESS
- || status == NSS_STATUS_SUCCESS)
- {
- if ((req->ai_flags & AI_CANONNAME) != 0
- && res.canon == NULL)
- {
- char *canonbuf = getcanonname (nip, res.at, name);
- if (canonbuf == NULL)
- {
- __resolv_context_put (res_ctx);
- result = -EAI_MEMORY;
- goto free_and_return;
- }
- res.canon = canonbuf;
- }
- status = NSS_STATUS_SUCCESS;
- }
- else
- {
- /* We can have different states for AF_INET and
- AF_INET6. Try to find a useful one for both. */
- if (inet6_status == NSS_STATUS_TRYAGAIN)
- status = NSS_STATUS_TRYAGAIN;
- else if (status == NSS_STATUS_UNAVAIL
- && inet6_status != NSS_STATUS_UNAVAIL)
- status = inet6_status;
- }
- }
- else
- {
- /* Could not locate any of the lookup functions.
- The NSS lookup code does not consistently set
- errno, so we need to supply our own error
- code here. The root cause could either be a
- resource allocation failure, or a missing
- service function in the DSO (so it should not
- be listed in /etc/nsswitch.conf). Assume the
- former, and return EBUSY. */
- status = NSS_STATUS_UNAVAIL;
- __set_h_errno (NETDB_INTERNAL);
- __set_errno (EBUSY);
- }
- }
-
- if (nss_next_action (nip, status) == NSS_ACTION_RETURN)
- break;
-
- /* The hosts database does not support MERGE. */
- if (nss_next_action (nip, status) == NSS_ACTION_MERGE)
- do_merge = true;
-
- nip++;
- if (nip->module == NULL)
- no_more = -1;
- }
-
- __resolv_context_put (res_ctx);
-
- /* If we have a failure which sets errno, report it using
- EAI_SYSTEM. */
- if ((status == NSS_STATUS_TRYAGAIN || status == NSS_STATUS_UNAVAIL)
- && h_errno == NETDB_INTERNAL)
- {
- result = -EAI_SYSTEM;
- goto free_and_return;
- }
-
- if (no_data != 0 && no_inet6_data != 0)
- {
- /* If both requests timed out report this. */
- if (no_data == EAI_AGAIN && no_inet6_data == EAI_AGAIN)
- result = -EAI_AGAIN;
- else
- /* We made requests but they turned out no data. The name
- is known, though. */
- result = -EAI_NODATA;
-
- goto free_and_return;
- }
+ if ((result = get_nss_addresses (name, req, tmpbuf, &res)) != 0)
+ goto free_and_return;
+ else if (res.at != NULL)
+ goto process_list;
- process_list:
- if (res.at == NULL)
- {
- result = -EAI_NONAME;
- goto free_and_return;
- }
+ /* None of the lookups worked, so name not found. */
+ result = -EAI_NONAME;
+ goto free_and_return;
}
else
{
@@ -1089,6 +1097,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
}
+process_list:
{
/* Set up the canonical name if we need it. */
if ((result = process_canonname (req, orig_name, &res)) != 0)

156
SOURCES/glibc-RHEL-2426-9.patch
Unescape View File

@ -0,0 +1,156 @@
commit 4d59769087f2143f619b4b38bf93590a86f5c806
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Mon Mar 7 19:48:48 2022 +0530
gaih_inet: make gethosts into a function
The macro is quite a pain to debug, so make gethosts into a function to
make it easier to maintain.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
(cherry picked from commit cfa3bd48cb19a70e4367a9978dbba09d9df27a72)
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 145ea6fa381ad14b..6be109d07f7fcce0 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -268,63 +268,54 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req, int family,
return true;
}
-#define gethosts(_family) \
- { \
- struct hostent th; \
- char *localcanon = NULL; \
- no_data = 0; \
- while (1) \
- { \
- status = DL_CALL_FCT (fct, (name, _family, &th, \
- tmpbuf->data, tmpbuf->length, \
- &errno, &h_errno, NULL, &localcanon)); \
- if (status != NSS_STATUS_TRYAGAIN || h_errno != NETDB_INTERNAL \
- || errno != ERANGE) \
- break; \
- if (!scratch_buffer_grow (tmpbuf)) \
- { \
- __resolv_context_put (res_ctx); \
- result = -EAI_MEMORY; \
- goto out; \
- } \
- } \
- if (status == NSS_STATUS_NOTFOUND \
- || status == NSS_STATUS_TRYAGAIN || status == NSS_STATUS_UNAVAIL) \
- { \
- if (h_errno == NETDB_INTERNAL) \
- { \
- __resolv_context_put (res_ctx); \
- result = -EAI_SYSTEM; \
- goto out; \
- } \
- if (h_errno == TRY_AGAIN) \
- no_data = EAI_AGAIN; \
- else \
- no_data = h_errno == NO_DATA; \
- } \
- else if (status == NSS_STATUS_SUCCESS) \
- { \
- if (!convert_hostent_to_gaih_addrtuple (req, _family, &th, res)) \
- { \
- __resolv_context_put (res_ctx); \
- result = -EAI_SYSTEM; \
- goto out; \
- } \
- \
- if (localcanon != NULL && res->canon == NULL) \
- { \
- char *canonbuf = __strdup (localcanon); \
- if (canonbuf == NULL) \
- { \
- __resolv_context_put (res_ctx); \
- result = -EAI_SYSTEM; \
- goto out; \
- } \
- res->canon = canonbuf; \
- } \
- } \
- }
+static int
+gethosts (nss_gethostbyname3_r fct, int family, const char *name,
+ const struct addrinfo *req, struct scratch_buffer *tmpbuf,
+ struct gaih_result *res, enum nss_status *statusp, int *no_datap)
+{
+ struct hostent th;
+ char *localcanon = NULL;
+ enum nss_status status;
+
+ *no_datap = 0;
+ while (1)
+ {
+ *statusp = status = DL_CALL_FCT (fct, (name, family, &th,
+ tmpbuf->data, tmpbuf->length,
+ &errno, &h_errno, NULL,
+ &localcanon));
+ if (status != NSS_STATUS_TRYAGAIN || h_errno != NETDB_INTERNAL
+ || errno != ERANGE)
+ break;
+ if (!scratch_buffer_grow (tmpbuf))
+ return -EAI_MEMORY;
+ }
+ if (status == NSS_STATUS_NOTFOUND
+ || status == NSS_STATUS_TRYAGAIN || status == NSS_STATUS_UNAVAIL)
+ {
+ if (h_errno == NETDB_INTERNAL)
+ return -EAI_SYSTEM;
+ if (h_errno == TRY_AGAIN)
+ *no_datap = EAI_AGAIN;
+ else
+ *no_datap = h_errno == NO_DATA;
+ }
+ else if (status == NSS_STATUS_SUCCESS)
+ {
+ if (!convert_hostent_to_gaih_addrtuple (req, family, &th, res))
+ return -EAI_SYSTEM;
+
+ if (localcanon != NULL && res->canon == NULL)
+ {
+ char *canonbuf = __strdup (localcanon);
+ if (canonbuf == NULL)
+ return -EAI_SYSTEM;
+ res->canon = canonbuf;
+ }
+ }
+ return 0;
+}
/* This function is called if a canonical name is requested, but if
the service function did not provide it. It tries to obtain the
@@ -741,7 +732,12 @@ get_nss_addresses (const char *name, const struct addrinfo *req,
if (req->ai_family == AF_INET6
|| req->ai_family == AF_UNSPEC)
{
- gethosts (AF_INET6);
+ if ((result = gethosts (fct, AF_INET6, name, req, tmpbuf,
+ res, &status, &no_data)) != 0)
+ {
+ __resolv_context_put (res_ctx);
+ goto out;
+ }
no_inet6_data = no_data;
inet6_status = status;
}
@@ -753,7 +749,12 @@ get_nss_addresses (const char *name, const struct addrinfo *req,
know we are not going to need them. */
&& ((req->ai_flags & AI_ALL) || !res->got_ipv6)))
{
- gethosts (AF_INET);
+ if ((result = gethosts (fct, AF_INET, name, req, tmpbuf,
+ res, &status, &no_data)) != 0)
+ {
+ __resolv_context_put (res_ctx);
+ goto out;
+ }
if (req->ai_family == AF_INET)
{

973
SOURCES/glibc-RHEL-2438.patch
Unescape View File

@ -0,0 +1,973 @@
commit 1c37b8022e8763fedbb3f79c02e05c6acfe5a215
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Thu Mar 17 11:44:34 2022 +0530
Simplify allocations and fix merge and continue actions [BZ #28931]
Allocations for address tuples is currently a bit confusing because of
the pointer chasing through PAT, making it hard to observe the sequence
in which allocations have been made. Narrow scope of the pointer
chasing through PAT so that it is only used where necessary.
This also tightens actions behaviour with the hosts database in
getaddrinfo to comply with the manual text. The "continue" action
discards previous results and the "merge" action results in an immedate
lookup failure. Consequently, chaining of allocations across modules is
no longer necessary, thus opening up cleanup opportunities.
A test has been added that checks some combinations to ensure that they
work correctly.
Resolves: BZ #28931
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
Conflicts:
nss/Makefile
(Tests applied in different order from upstream)
diff --git a/nss/Makefile b/nss/Makefile
index f01674a16e720b88..333edb1588ede881 100644
--- a/nss/Makefile
+++ b/nss/Makefile
@@ -77,6 +77,7 @@ tests-container := \
tst-nss-db-endpwent \
tst-nss-files-hosts-long \
tst-nss-files-hosts-v4mapped \
+ tst-nss-gai-actions \
tst-nss-test3 \
tst-reload1 \
tst-reload2 \
diff --git a/nss/tst-nss-gai-actions.c b/nss/tst-nss-gai-actions.c
new file mode 100644
index 0000000000000000..efca6cd1837a172a
--- /dev/null
+++ b/nss/tst-nss-gai-actions.c
@@ -0,0 +1,149 @@
+/* Test continue and merge NSS actions for getaddrinfo.
+ Copyright The GNU Toolchain Authors.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <dlfcn.h>
+#include <gnu/lib-names.h>
+#include <nss.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <support/check.h>
+#include <support/format_nss.h>
+#include <support/support.h>
+#include <support/xstdio.h>
+#include <support/xunistd.h>
+
+enum
+{
+ ACTION_MERGE = 0,
+ ACTION_CONTINUE,
+};
+
+static const char *
+family_str (int family)
+{
+ switch (family)
+ {
+ case AF_UNSPEC:
+ return "AF_UNSPEC";
+ case AF_INET:
+ return "AF_INET";
+ default:
+ __builtin_unreachable ();
+ }
+}
+
+static const char *
+action_str (int action)
+{
+ switch (action)
+ {
+ case ACTION_MERGE:
+ return "merge";
+ case ACTION_CONTINUE:
+ return "continue";
+ default:
+ __builtin_unreachable ();
+ }
+}
+
+static void
+do_one_test (int action, int family, bool canon)
+{
+ struct addrinfo hints =
+ {
+ .ai_family = family,
+ };
+
+ struct addrinfo *ai;
+
+ if (canon)
+ hints.ai_flags = AI_CANONNAME;
+
+ printf ("***** Testing \"files [SUCCESS=%s] files\" for family %s, %s\n",
+ action_str (action), family_str (family),
+ canon ? "AI_CANONNAME" : "");
+
+ int ret = getaddrinfo ("example.org", "80", &hints, &ai);
+
+ switch (action)
+ {
+ case ACTION_MERGE:
+ if (ret == 0)
+ {
+ char *formatted = support_format_addrinfo (ai, ret);
+
+ printf ("merge unexpectedly succeeded:\n %s\n", formatted);
+ support_record_failure ();
+ free (formatted);
+ }
+ else
+ return;
+ case ACTION_CONTINUE:
+ {
+ char *formatted = support_format_addrinfo (ai, ret);
+
+ /* Verify that the result appears exactly once. */
+ const char *expected = "address: STREAM/TCP 192.0.0.1 80\n"
+ "address: DGRAM/UDP 192.0.0.1 80\n"
+ "address: RAW/IP 192.0.0.1 80\n";
+
+ const char *contains = strstr (formatted, expected);
+ const char *contains2 = NULL;
+
+ if (contains != NULL)
+ contains2 = strstr (contains + strlen (expected), expected);
+
+ if (contains == NULL || contains2 != NULL)
+ {
+ printf ("continue failed:\n%s\n", formatted);
+ support_record_failure ();
+ }
+
+ free (formatted);
+ break;
+ }
+ default:
+ __builtin_unreachable ();
+ }
+}
+
+static void
+do_one_test_set (int action)
+{
+ char buf[32];
+
+ snprintf (buf, sizeof (buf), "files [SUCCESS=%s] files",
+ action_str (action));
+ __nss_configure_lookup ("hosts", buf);
+
+ do_one_test (action, AF_UNSPEC, false);
+ do_one_test (action, AF_INET, false);
+ do_one_test (action, AF_INET, true);
+}
+
+static int
+do_test (void)
+{
+ do_one_test_set (ACTION_CONTINUE);
+ do_one_test_set (ACTION_MERGE);
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/nss/tst-nss-gai-actions.root/etc/host.conf b/nss/tst-nss-gai-actions.root/etc/host.conf
new file mode 100644
index 0000000000000000..d1a59f73a90f2993
--- /dev/null
+++ b/nss/tst-nss-gai-actions.root/etc/host.conf
@@ -0,0 +1 @@
+multi on
diff --git a/nss/tst-nss-gai-actions.root/etc/hosts b/nss/tst-nss-gai-actions.root/etc/hosts
new file mode 100644
index 0000000000000000..50ce9774dc2c21d9
--- /dev/null
+++ b/nss/tst-nss-gai-actions.root/etc/hosts
@@ -0,0 +1,508 @@
+192.0.0.1 example.org
+192.0.0.2 example.org
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diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 43dfc6739e350a58..f391dc0a59849aab 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -458,11 +458,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (name != NULL)
{
- at = alloca_account (sizeof (struct gaih_addrtuple), alloca_used);
- at->family = AF_UNSPEC;
- at->scopeid = 0;
- at->next = NULL;
-
if (req->ai_flags & AI_IDN)
{
char *out;
@@ -473,13 +468,21 @@ gaih_inet (const char *name, const struct gaih_service *service,
malloc_name = true;
}
- if (__inet_aton_exact (name, (struct in_addr *) at->addr) != 0)
+ uint32_t addr[4];
+ if (__inet_aton_exact (name, (struct in_addr *) addr) != 0)
{
+ at = alloca_account (sizeof (struct gaih_addrtuple), alloca_used);
+ at->scopeid = 0;
+ at->next = NULL;
+
if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET)
- at->family = AF_INET;
+ {
+ memcpy (at->addr, addr, sizeof (at->addr));
+ at->family = AF_INET;
+ }
else if (req->ai_family == AF_INET6 && (req->ai_flags & AI_V4MAPPED))
{
- at->addr[3] = at->addr[0];
+ at->addr[3] = addr[0];
at->addr[2] = htonl (0xffff);
at->addr[1] = 0;
at->addr[0] = 0;
@@ -493,49 +496,62 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (req->ai_flags & AI_CANONNAME)
canon = name;
+
+ goto process_list;
}
- else if (at->family == AF_UNSPEC)
+
+ char *scope_delim = strchr (name, SCOPE_DELIMITER);
+ int e;
+
+ if (scope_delim == NULL)
+ e = inet_pton (AF_INET6, name, addr);
+ else
+ e = __inet_pton_length (AF_INET6, name, scope_delim - name, addr);
+
+ if (e > 0)
{
- char *scope_delim = strchr (name, SCOPE_DELIMITER);
- int e;
- if (scope_delim == NULL)
- e = inet_pton (AF_INET6, name, at->addr);
+ at = alloca_account (sizeof (struct gaih_addrtuple),
+ alloca_used);
+ at->scopeid = 0;
+ at->next = NULL;
+
+ if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6)
+ {
+ memcpy (at->addr, addr, sizeof (at->addr));
+ at->family = AF_INET6;
+ }
+ else if (req->ai_family == AF_INET
+ && IN6_IS_ADDR_V4MAPPED (addr))
+ {
+ at->addr[0] = addr[3];
+ at->addr[1] = addr[1];
+ at->addr[2] = addr[2];
+ at->addr[3] = addr[3];
+ at->family = AF_INET;
+ }
else
- e = __inet_pton_length (AF_INET6, name, scope_delim - name,
- at->addr);
- if (e > 0)
{
- if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6)
- at->family = AF_INET6;
- else if (req->ai_family == AF_INET
- && IN6_IS_ADDR_V4MAPPED (at->addr))
- {
- at->addr[0] = at->addr[3];
- at->family = AF_INET;
- }
- else
- {
- result = -EAI_ADDRFAMILY;
- goto free_and_return;
- }
-
- if (scope_delim != NULL
- && __inet6_scopeid_pton ((struct in6_addr *) at->addr,
- scope_delim + 1,
- &at->scopeid) != 0)
- {
- result = -EAI_NONAME;
- goto free_and_return;
- }
+ result = -EAI_ADDRFAMILY;
+ goto free_and_return;
+ }
- if (req->ai_flags & AI_CANONNAME)
- canon = name;
+ if (scope_delim != NULL
+ && __inet6_scopeid_pton ((struct in6_addr *) at->addr,
+ scope_delim + 1,
+ &at->scopeid) != 0)
+ {
+ result = -EAI_NONAME;
+ goto free_and_return;
}
+
+ if (req->ai_flags & AI_CANONNAME)
+ canon = name;
+
+ goto process_list;
}
- if (at->family == AF_UNSPEC && (req->ai_flags & AI_NUMERICHOST) == 0)
+ if ((req->ai_flags & AI_NUMERICHOST) == 0)
{
- struct gaih_addrtuple **pat = &at;
int no_data = 0;
int no_inet6_data = 0;
nss_action_list nip;
@@ -543,6 +559,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
enum nss_status status = NSS_STATUS_UNAVAIL;
int no_more;
struct resolv_context *res_ctx = NULL;
+ bool do_merge = false;
/* If we do not have to look for IPv6 addresses or the canonical
name, use the simple, old functions, which do not support
@@ -579,7 +596,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
result = -EAI_MEMORY;
goto free_and_return;
}
- *pat = addrmem;
+ at = addrmem;
}
else
{
@@ -632,6 +649,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
struct gaih_addrtuple *addrfree = addrmem;
+ struct gaih_addrtuple **pat = &at;
+
for (int i = 0; i < air->naddrs; ++i)
{
socklen_t size = (air->family[i] == AF_INET
@@ -695,12 +714,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
free (air);
- if (at->family == AF_UNSPEC)
- {
- result = -EAI_NONAME;
- goto free_and_return;
- }
-
goto process_list;
}
else if (err == 0)
@@ -732,6 +745,22 @@ gaih_inet (const char *name, const struct gaih_service *service,
while (!no_more)
{
+ /* Always start afresh; continue should discard previous results
+ and the hosts database does not support merge. */
+ at = NULL;
+ free (canonbuf);
+ free (addrmem);
+ canon = canonbuf = NULL;
+ addrmem = NULL;
+ got_ipv6 = false;
+
+ if (do_merge)
+ {
+ __set_h_errno (NETDB_INTERNAL);
+ __set_errno (EBUSY);
+ break;
+ }
+
no_data = 0;
nss_gethostbyname4_r *fct4 = NULL;
@@ -744,12 +773,14 @@ gaih_inet (const char *name, const struct gaih_service *service,
{
while (1)
{
- status = DL_CALL_FCT (fct4, (name, pat,
+ status = DL_CALL_FCT (fct4, (name, &at,
tmpbuf->data, tmpbuf->length,
&errno, &h_errno,
NULL));
if (status == NSS_STATUS_SUCCESS)
break;
+ /* gethostbyname4_r may write into AT, so reset it. */
+ at = NULL;
if (status != NSS_STATUS_TRYAGAIN
|| errno != ERANGE || h_errno != NETDB_INTERNAL)
{
@@ -774,7 +805,9 @@ gaih_inet (const char *name, const struct gaih_service *service,
no_data = 1;
if ((req->ai_flags & AI_CANONNAME) != 0 && canon == NULL)
- canon = (*pat)->name;
+ canon = at->name;
+
+ struct gaih_addrtuple **pat = &at;
while (*pat != NULL)
{
@@ -826,6 +859,8 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (fct != NULL)
{
+ struct gaih_addrtuple **pat = &at;
+
if (req->ai_family == AF_INET6
|| req->ai_family == AF_UNSPEC)
{
@@ -899,6 +934,10 @@ gaih_inet (const char *name, const struct gaih_service *service,
if (nss_next_action (nip, status) == NSS_ACTION_RETURN)
break;
+ /* The hosts database does not support MERGE. */
+ if (nss_next_action (nip, status) == NSS_ACTION_MERGE)
+ do_merge = true;
+
nip++;
if (nip->module == NULL)
no_more = -1;
@@ -930,7 +969,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
}
process_list:
- if (at->family == AF_UNSPEC)
+ if (at == NULL)
{
result = -EAI_NONAME;
goto free_and_return;

112
SOURCES/glibc-RHEL-2491.patch
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@ -0,0 +1,112 @@
commit 849274d48fc59bfa6db3c713c8ced8026b20f3b7
Author: Florian Weimer <fweimer@redhat.com>
Date: Thu Nov 16 19:55:35 2023 +0100
elf: Fix force_first handling in dlclose (bug 30981)
The force_first parameter was ineffective because the dlclose'd
object was not necessarily the first in the maps array. Also
enable force_first handling unconditionally, regardless of namespace.
The initial object in a namespace should be destructed first, too.
The _dl_sort_maps_dfs function had early returns for relocation
dependency processing which broke force_first handling, too, and
this is fixed in this change as well.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 95a03c9616c6a786..9d158c25498fd8ae 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -182,6 +182,16 @@ _dl_close_worker (struct link_map *map, bool force)
}
assert (idx == nloaded);
+ /* Put the dlclose'd map first, so that its destructor runs first.
+ The map variable is NULL after a retry. */
+ if (map != NULL)
+ {
+ maps[map->l_idx] = maps[0];
+ maps[map->l_idx]->l_idx = map->l_idx;
+ maps[0] = map;
+ maps[0]->l_idx = 0;
+ }
+
/* Keep track of the lowest index link map we have covered already. */
int done_index = -1;
while (++done_index < nloaded)
@@ -255,9 +265,10 @@ _dl_close_worker (struct link_map *map, bool force)
}
}
- /* Sort the entries. We can skip looking for the binary itself which is
- at the front of the search list for the main namespace. */
- _dl_sort_maps (maps, nloaded, (nsid == LM_ID_BASE), true);
+ /* Sort the entries. Unless retrying, the maps[0] object (the
+ original argument to dlclose) needs to remain first, so that its
+ destructor runs first. */
+ _dl_sort_maps (maps, nloaded, /* force_first */ map != NULL, true);
/* Call all termination functions at once. */
bool unload_any = false;
@@ -768,7 +779,11 @@ _dl_close_worker (struct link_map *map, bool force)
/* Recheck if we need to retry, release the lock. */
out:
if (dl_close_state == rerun)
- goto retry;
+ {
+ /* The map may have been deallocated. */
+ map = NULL;
+ goto retry;
+ }
dl_close_state = not_pending;
}
diff --git a/elf/dl-sort-maps.c b/elf/dl-sort-maps.c
index e8ef5e8b3588ab53..937feb6e7008bc62 100644
--- a/elf/dl-sort-maps.c
+++ b/elf/dl-sort-maps.c
@@ -260,13 +260,12 @@ _dl_sort_maps_dfs (struct link_map **maps, unsigned int nmaps,
The below memcpy is not needed in the do_reldeps case here,
since we wrote back to maps[] during DFS traversal. */
if (maps_head == maps)
- return;
+ break;
}
assert (maps_head == maps);
- return;
}
-
- memcpy (maps, rpo, sizeof (struct link_map *) * nmaps);
+ else
+ memcpy (maps, rpo, sizeof (struct link_map *) * nmaps);
/* Skipping the first object at maps[0] is not valid in general,
since traversing along object dependency-links may "find" that
diff --git a/elf/dso-sort-tests-1.def b/elf/dso-sort-tests-1.def
index 4bf9052db16fb352..cf6453e9eb85ac65 100644
--- a/elf/dso-sort-tests-1.def
+++ b/elf/dso-sort-tests-1.def
@@ -56,14 +56,16 @@ output: b>a>{}<a<b
# relocation(dynamic) dependencies. While this is technically unspecified, the
# presumed reasonable practical behavior is for the destructor order to respect
# the static DT_NEEDED links (here this means the a->b->c->d order).
-# The older dynamic_sort=1 algorithm does not achieve this, while the DFS-based
-# dynamic_sort=2 algorithm does, although it is still arguable whether going
-# beyond spec to do this is the right thing to do.
+# The older dynamic_sort=1 algorithm originally did not achieve this,
+# but this was a bug in the way _dl_sort_maps was called from _dl_close_worker,
+# effectively disabling proper force_first handling.
+# The new dynamic_sort=2 algorithm shows the effect of the simpler force_first
+# handling: the a object is simply moved to the front.
# The below expected outputs are what the two algorithms currently produce
# respectively, for regression testing purposes.
tst-bz15311: {+a;+e;+f;+g;+d;%d;-d;-g;-f;-e;-a};a->b->c->d;d=>[ba];c=>a;b=>e=>a;c=>f=>b;d=>g=>c
-output(glibc.rtld.dynamic_sort=1): {+a[d>c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[<a<c<d<g<f<b<e];}
-output(glibc.rtld.dynamic_sort=2): {+a[d>c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[<g<f<a<b<c<d<e];}
+output(glibc.rtld.dynamic_sort=1): {+a[d>c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[<a<b<c<d<g<f<e];}
+output(glibc.rtld.dynamic_sort=2): {+a[d>c>b>a>];+e[e>];+f[f>];+g[g>];+d[];%d(b(e(a()))a()g(c(a()f(b(e(a()))))));-d[];-g[];-f[];-e[];-a[<a<g<f<b<c<d<e];}
# Test that even in the presence of dependency loops involving dlopen'ed
# object, that object is initialized last (and not unloaded prematurely).

164
SOURCES/glibc-RHEL-3000.patch
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@ -0,0 +1,164 @@
This patch was developed under embargo and cannot reference an upstream
commit. To find the associated commit please review the upstream git
log for CVE-2023-4911 to identify the relevant commits.
Author: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Tue Sep 19 11:52:44 2023 -0400
tunables: Terminate if end of input is reached (CVE-2023-4911)
The string parsing routine may end up writing beyond bounds of tunestr
if the input tunable string is malformed, of the form name=name=val.
This gets processed twice, first as name=name=val and next as name=val,
resulting in tunestr being name=name=val:name=val, thus overflowing
tunestr.
Terminate the parsing loop at the first instance itself so that tunestr
does not overflow.
This also fixes up tst-env-setuid-tunables to actually handle failures
correct and add new tests to validate the fix for this CVE.
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
---
Tested on x86_64.
NEWS | 5 +++++
elf/dl-tunables.c | 17 ++++++++++-------
elf/tst-env-setuid-tunables.c | 36 +++++++++++++++++++++++++++--------
3 files changed, 43 insertions(+), 15 deletions(-)
Conflicts:
NEWS
(Dropped)
elf/tst-env-setuid-tunables.c
(Trivial HAVE_TUNABLES conflict)
diff --git a/elf/dl-tunables.c b/elf/dl-tunables.c
index 8009e54ee5db32be..837474b5044cb5d7 100644
--- a/elf/dl-tunables.c
+++ b/elf/dl-tunables.c
@@ -188,11 +188,7 @@ parse_tunables (char *tunestr, char *valstring)
/* If we reach the end of the string before getting a valid name-value
pair, bail out. */
if (p[len] == '\0')
- {
- if (__libc_enable_secure)
- tunestr[off] = '\0';
- return;
- }
+ break;
/* We did not find a valid name-value pair before encountering the
colon. */
@@ -252,9 +248,16 @@ parse_tunables (char *tunestr, char *valstring)
}
}
- if (p[len] != '\0')
- p += len + 1;
+ /* We reached the end while processing the tunable string. */
+ if (p[len] == '\0')
+ break;
+
+ p += len + 1;
}
+
+ /* Terminate tunestr before we leave. */
+ if (__libc_enable_secure)
+ tunestr[off] = '\0';
}
#endif
diff --git a/elf/tst-env-setuid-tunables.c b/elf/tst-env-setuid-tunables.c
index 05619c9adc8b2698..cd4e84364074c613 100644
--- a/elf/tst-env-setuid-tunables.c
+++ b/elf/tst-env-setuid-tunables.c
@@ -52,6 +52,8 @@ const char *teststrings[] =
"glibc.malloc.perturb=0x800:not_valid.malloc.check=2:glibc.malloc.mmap_threshold=4096",
"glibc.not_valid.check=2:glibc.malloc.mmap_threshold=4096",
"not_valid.malloc.check=2:glibc.malloc.mmap_threshold=4096",
+ "glibc.malloc.mmap_threshold=glibc.malloc.mmap_threshold=4096",
+ "glibc.malloc.check=2",
"glibc.malloc.garbage=2:glibc.maoc.mmap_threshold=4096:glibc.malloc.check=2",
"glibc.malloc.check=4:glibc.malloc.garbage=2:glibc.maoc.mmap_threshold=4096",
":glibc.malloc.garbage=2:glibc.malloc.check=1",
@@ -70,6 +72,8 @@ const char *resultstrings[] =
"glibc.malloc.perturb=0x800:glibc.malloc.mmap_threshold=4096",
"glibc.malloc.mmap_threshold=4096",
"glibc.malloc.mmap_threshold=4096",
+ "glibc.malloc.mmap_threshold=glibc.malloc.mmap_threshold=4096",
+ "",
"",
"",
"",
@@ -84,11 +88,18 @@ test_child (int off)
const char *val = getenv ("GLIBC_TUNABLES");
#if HAVE_TUNABLES
+ printf (" [%d] GLIBC_TUNABLES is %s\n", off, val);
+ fflush (stdout);
if (val != NULL && strcmp (val, resultstrings[off]) == 0)
return 0;
if (val != NULL)
- printf ("[%d] Unexpected GLIBC_TUNABLES VALUE %s\n", off, val);
+ printf (" [%d] Unexpected GLIBC_TUNABLES VALUE %s, expected %s\n",
+ off, val, resultstrings[off]);
+ else
+ printf (" [%d] GLIBC_TUNABLES environment variable absent\n", off);
+
+ fflush (stdout);
return 1;
#else
@@ -117,21 +128,26 @@ do_test (int argc, char **argv)
if (ret != 0)
exit (1);
- exit (EXIT_SUCCESS);
+ /* Special return code to make sure that the child executed all the way
+ through. */
+ exit (42);
}
else
{
- int ret = 0;
-
/* Spawn tests. */
for (int i = 0; i < array_length (teststrings); i++)
{
char buf[INT_BUFSIZE_BOUND (int)];
- printf ("Spawned test for %s (%d)\n", teststrings[i], i);
+ printf ("[%d] Spawned test for %s\n", i, teststrings[i]);
snprintf (buf, sizeof (buf), "%d\n", i);
+ fflush (stdout);
if (setenv ("GLIBC_TUNABLES", teststrings[i], 1) != 0)
- exit (1);
+ {
+ printf (" [%d] Failed to set GLIBC_TUNABLES: %m", i);
+ support_record_failure ();
+ continue;
+ }
int status = support_capture_subprogram_self_sgid (buf);
@@ -139,9 +155,14 @@ do_test (int argc, char **argv)
if (WEXITSTATUS (status) == EXIT_UNSUPPORTED)
return EXIT_UNSUPPORTED;
- ret |= status;
+ if (WEXITSTATUS (status) != 42)
+ {
+ printf (" [%d] child failed with status %d\n", i,
+ WEXITSTATUS (status));
+ support_record_failure ();
+ }
}
- return ret;
+ return 0;
}
}

83
SOURCES/glibc-RHEL-3397.patch
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@ -0,0 +1,83 @@
commit c00b984fcd53f679ca2dafcd1aee2c89836e6e73
Author: Florian Weimer <fweimer@redhat.com>
Date: Tue Aug 29 08:28:31 2023 +0200
nscd: Skip unusable entries in first pass in prune_cache (bug 30800)
Previously, if an entry was marked unusable for any reason, but had
not timed out yet, the assert would trigger.
One way to get into such state is if a data change is detected during
re-validation of an entry. This causes the entry to be marked as not
usable. If exits nscd soon after that, then the clock jumps
backwards, and nscd restarted, the cache re-validation run after
startup triggers the removed assert.
The change is more complicated than just the removal of the assert
because entries marked as not usable should be garbage-collected in
the second pass. To make this happen, it is necessary to update some
book-keeping data.
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/nscd/cache.c b/nscd/cache.c
index 78b2269788699e6f..ac5902ae10b791bb 100644
--- a/nscd/cache.c
+++ b/nscd/cache.c
@@ -371,8 +371,11 @@ prune_cache (struct database_dyn *table, time_t now, int fd)
serv2str[runp->type], str, dh->timeout);
}
- /* Check whether the entry timed out. */
- if (dh->timeout < now)
+ /* Check whether the entry timed out. Timed out entries
+ will be revalidated. For unusable records, it is still
+ necessary to record that the bucket needs to be scanned
+ again below. */
+ if (dh->timeout < now || !dh->usable)
{
/* This hash bucket could contain entries which need to
be looked at. */
@@ -384,7 +387,7 @@ prune_cache (struct database_dyn *table, time_t now, int fd)
/* We only have to look at the data of the first entries
since the count information is kept in the data part
which is shared. */
- if (runp->first)
+ if (runp->first && dh->usable)
{
/* At this point there are two choices: we reload the
@@ -400,9 +403,6 @@ prune_cache (struct database_dyn *table, time_t now, int fd)
{
/* Remove the value. */
dh->usable = false;
-
- /* We definitely have some garbage entries now. */
- any = true;
}
else
{
@@ -414,18 +414,15 @@ prune_cache (struct database_dyn *table, time_t now, int fd)
time_t timeout = readdfcts[runp->type] (table, runp, dh);
next_timeout = MIN (next_timeout, timeout);
-
- /* If the entry has been replaced, we might need
- cleanup. */
- any |= !dh->usable;
}
}
+
+ /* If the entry has been replaced, we might need cleanup. */
+ any |= !dh->usable;
}
else
- {
- assert (dh->usable);
- next_timeout = MIN (next_timeout, dh->timeout);
- }
+ /* Entry has not timed out and is usable. */
+ next_timeout = MIN (next_timeout, dh->timeout);
run = runp->next;
}

187
SOURCES/glibc-rh2234716.patch
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@ -0,0 +1,187 @@
commit bd77dd7e73e3530203be1c52c8a29d08270cb25d
Author: Florian Weimer <fweimer@redhat.com>
Date: Wed Sep 13 14:10:56 2023 +0200
CVE-2023-4527: Stack read overflow with large TCP responses in no-aaaa mode
Without passing alt_dns_packet_buffer, __res_context_search can only
store 2048 bytes (what fits into dns_packet_buffer). However,
the function returns the total packet size, and the subsequent
DNS parsing code in _nss_dns_gethostbyname4_r reads beyond the end
of the stack-allocated buffer.
Fixes commit f282cdbe7f436c75864e5640a4 ("resolv: Implement no-aaaa
stub resolver option") and bug 30842.
Conflits:
resolv/Makefile
(missing tests)
diff --git a/resolv/Makefile b/resolv/Makefile
index ea1518ec2da860c1..2c43d52122ef4343 100644
--- a/resolv/Makefile
+++ b/resolv/Makefile
@@ -102,6 +102,7 @@ tests += \
tst-resolv-invalid-cname \
tst-resolv-network \
tst-resolv-noaaaa \
+ tst-resolv-noaaaa-vc \
tst-resolv-nondecimal \
tst-resolv-res_init-multi \
tst-resolv-search \
@@ -280,6 +281,7 @@ $(objpfx)tst-resolv-res_init-multi: $(objpfx)libresolv.so \
$(objpfx)tst-resolv-res_init-thread: $(objpfx)libresolv.so \
$(shared-thread-library)
$(objpfx)tst-resolv-noaaaa: $(objpfx)libresolv.so $(shared-thread-library)
+$(objpfx)tst-resolv-noaaaa-vc: $(objpfx)libresolv.so $(shared-thread-library)
$(objpfx)tst-resolv-invalid-cname: $(objpfx)libresolv.so \
$(shared-thread-library)
$(objpfx)tst-resolv-nondecimal: $(objpfx)libresolv.so $(shared-thread-library)
diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 36789965c06757d0..3d261b6810bba5c9 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -428,7 +428,7 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat,
{
n = __res_context_search (ctx, name, C_IN, T_A,
dns_packet_buffer, sizeof (dns_packet_buffer),
- NULL, NULL, NULL, NULL, NULL);
+ &alt_dns_packet_buffer, NULL, NULL, NULL, NULL);
if (n >= 0)
status = gaih_getanswer_noaaaa (alt_dns_packet_buffer, n,
&abuf, pat, errnop, herrnop, ttlp);
diff --git a/resolv/tst-resolv-noaaaa-vc.c b/resolv/tst-resolv-noaaaa-vc.c
new file mode 100644
index 0000000000000000..9f5aebd99f2d74a2
--- /dev/null
+++ b/resolv/tst-resolv-noaaaa-vc.c
@@ -0,0 +1,129 @@
+/* Test the RES_NOAAAA resolver option with a large response.
+ Copyright (C) 2022-2023 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <support/check.h>
+#include <support/check_nss.h>
+#include <support/resolv_test.h>
+#include <support/support.h>
+#include <support/xmemstream.h>
+
+/* Used to keep track of the number of queries. */
+static volatile unsigned int queries;
+
+/* If true, add a large TXT record at the start of the answer section. */
+static volatile bool stuff_txt;
+
+static void
+response (const struct resolv_response_context *ctx,
+ struct resolv_response_builder *b,
+ const char *qname, uint16_t qclass, uint16_t qtype)
+{
+ /* If not using TCP, just force its use. */
+ if (!ctx->tcp)
+ {
+ struct resolv_response_flags flags = {.tc = true};
+ resolv_response_init (b, flags);
+ resolv_response_add_question (b, qname, qclass, qtype);
+ return;
+ }
+
+ /* The test needs to send four queries, the first three are used to
+ grow the NSS buffer via the ERANGE handshake. */
+ ++queries;
+ TEST_VERIFY (queries <= 4);
+
+ /* AAAA queries are supposed to be disabled. */
+ TEST_COMPARE (qtype, T_A);
+ TEST_COMPARE (qclass, C_IN);
+ TEST_COMPARE_STRING (qname, "example.com");
+
+ struct resolv_response_flags flags = {};
+ resolv_response_init (b, flags);
+ resolv_response_add_question (b, qname, qclass, qtype);
+
+ resolv_response_section (b, ns_s_an);
+
+ if (stuff_txt)
+ {
+ resolv_response_open_record (b, qname, qclass, T_TXT, 60);
+ int zero = 0;
+ for (int i = 0; i <= 15000; ++i)
+ resolv_response_add_data (b, &zero, sizeof (zero));
+ resolv_response_close_record (b);
+ }
+
+ for (int i = 0; i < 200; ++i)
+ {
+ resolv_response_open_record (b, qname, qclass, qtype, 60);
+ char ipv4[4] = {192, 0, 2, i + 1};
+ resolv_response_add_data (b, &ipv4, sizeof (ipv4));
+ resolv_response_close_record (b);
+ }
+}
+
+static int
+do_test (void)
+{
+ struct resolv_test *obj = resolv_test_start
+ ((struct resolv_redirect_config)
+ {
+ .response_callback = response
+ });
+
+ _res.options |= RES_NOAAAA;
+
+ for (int do_stuff_txt = 0; do_stuff_txt < 2; ++do_stuff_txt)
+ {
+ queries = 0;
+ stuff_txt = do_stuff_txt;
+
+ struct addrinfo *ai = NULL;
+ int ret;
+ ret = getaddrinfo ("example.com", "80",
+ &(struct addrinfo)
+ {
+ .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ }, &ai);
+
+ char *expected_result;
+ {
+ struct xmemstream mem;
+ xopen_memstream (&mem);
+ for (int i = 0; i < 200; ++i)
+ fprintf (mem.out, "address: STREAM/TCP 192.0.2.%d 80\n", i + 1);
+ xfclose_memstream (&mem);
+ expected_result = mem.buffer;
+ }
+
+ check_addrinfo ("example.com", ai, ret, expected_result);
+
+ free (expected_result);
+ freeaddrinfo (ai);
+ }
+
+ resolv_test_end (obj);
+ return 0;
+}
+
+#include <support/test-driver.c>

95
SOURCES/glibc-rhel-17157.patch
Unescape View File

@ -0,0 +1,95 @@
commit 472894d2cfee5751b44c0aaa71ed87df81c8e62e
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Oct 11 13:43:56 2023 -0300
malloc: Use __get_nprocs on arena_get2 (BZ 30945)
This restore the 2.33 semantic for arena_get2. It was changed by
11a02b035b46 to avoid arena_get2 call malloc (back when __get_nproc
was refactored to use an scratch_buffer - 903bc7dcc2acafc). The
__get_nproc was refactored over then and now it also avoid to call
malloc.
The 11a02b035b46 did not take in consideration any performance
implication, which should have been discussed properly. The
__get_nprocs_sched is still used as a fallback mechanism if procfs
and sysfs is not acessible.
Checked on x86_64-linux-gnu.
Reviewed-by: DJ Delorie <dj@redhat.com>
diff --git a/include/sys/sysinfo.h b/include/sys/sysinfo.h
index c490561581..65742b1036 100644
--- a/include/sys/sysinfo.h
+++ b/include/sys/sysinfo.h
@@ -14,10 +14,6 @@ libc_hidden_proto (__get_nprocs_conf)
extern int __get_nprocs (void);
libc_hidden_proto (__get_nprocs)
-/* Return the number of available processors which the process can
- be scheduled. */
-extern int __get_nprocs_sched (void) attribute_hidden;
-
/* Return number of physical pages of memory in the system. */
extern long int __get_phys_pages (void);
libc_hidden_proto (__get_phys_pages)
diff --git a/malloc/arena.c b/malloc/arena.c
index d1e214ac2e..a1a75e5a2b 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -824,7 +824,7 @@ arena_get2 (size_t size, mstate avoid_arena)
narenas_limit = mp_.arena_max;
else if (narenas > mp_.arena_test)
{
- int n = __get_nprocs_sched ();
+ int n = __get_nprocs ();
if (n >= 1)
narenas_limit = NARENAS_FROM_NCORES (n);
diff --git a/misc/getsysstats.c b/misc/getsysstats.c
index 5f36adc0e8..23cc112074 100644
--- a/misc/getsysstats.c
+++ b/misc/getsysstats.c
@@ -44,12 +44,6 @@ weak_alias (__get_nprocs, get_nprocs)
link_warning (get_nprocs, "warning: get_nprocs will always return 1")
-int
-__get_nprocs_sched (void)
-{
- return 1;
-}
-
long int
__get_phys_pages (void)
{
diff --git a/sysdeps/mach/getsysstats.c b/sysdeps/mach/getsysstats.c
index 5184e5eee1..d3834f3b69 100644
--- a/sysdeps/mach/getsysstats.c
+++ b/sysdeps/mach/getsysstats.c
@@ -62,12 +62,6 @@ __get_nprocs (void)
libc_hidden_def (__get_nprocs)
weak_alias (__get_nprocs, get_nprocs)
-int
-__get_nprocs_sched (void)
-{
- return __get_nprocs ();
-}
-
/* Return the number of physical pages on the system. */
long int
__get_phys_pages (void)
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c
index b0b6c154ac..1ea7f1f01f 100644
--- a/sysdeps/unix/sysv/linux/getsysstats.c
+++ b/sysdeps/unix/sysv/linux/getsysstats.c
@@ -29,7 +29,7 @@
#include <sys/sysinfo.h>
#include <sysdep.h>
-int
+static int
__get_nprocs_sched (void)
{
enum

140
SPECS/glibc.spec
Unescape View File

@ -155,7 +155,7 @@ end \
Summary: The GNU libc libraries Summary: The GNU libc libraries
Name: glibc Name: glibc
Version: %{glibcversion} Version: %{glibcversion}
Release: 82%{?dist} Release: 100%{?dist}
# In general, GPLv2+ is used by programs, LGPLv2+ is used for # In general, GPLv2+ is used by programs, LGPLv2+ is used for
# libraries. # libraries.
@ -747,6 +747,67 @@ Patch506: glibc-rh2166710-2.patch
Patch507: glibc-rh2166710-3.patch Patch507: glibc-rh2166710-3.patch
Patch508: glibc-rh2222188-6.patch Patch508: glibc-rh2222188-6.patch
Patch509: glibc-rh2213907-7.patch Patch509: glibc-rh2213907-7.patch
Patch510: glibc-RHEL-1017-1.patch
Patch511: glibc-RHEL-1017-2.patch
Patch512: glibc-RHEL-1017-3.patch
Patch513: glibc-RHEL-1017-4.patch
# (Reverted fixes for RHEL-2491 were here.)
Patch519: glibc-rh2234716.patch
Patch520: glibc-RHEL-2438.patch
Patch521: glibc-RHEL-2426-1.patch
Patch522: glibc-RHEL-2426-2.patch
Patch523: glibc-RHEL-2426-3.patch
Patch524: glibc-RHEL-2426-4.patch
Patch525: glibc-RHEL-2426-5.patch
Patch526: glibc-RHEL-2426-6.patch
Patch527: glibc-RHEL-2426-7.patch
Patch528: glibc-RHEL-2426-8.patch
Patch529: glibc-RHEL-2426-9.patch
Patch530: glibc-RHEL-2426-10.patch
Patch531: glibc-RHEL-2426-11.patch
Patch532: glibc-RHEL-2426-12.patch
Patch533: glibc-RHEL-2426-13.patch
Patch534: glibc-RHEL-3000.patch
Patch535: glibc-RHEL-2426-14.patch
Patch536: glibc-RHEL-2426-15.patch
Patch537: glibc-RHEL-1191.patch
Patch538: glibc-RHEL-3397.patch
Patch539: glibc-RHEL-2123.patch
Patch540: glibc-RHEL-16275.patch
Patch541: glibc-RHEL-2491.patch
Patch542: glibc-RHEL-14383-1.patch
Patch543: glibc-RHEL-14383-2.patch
Patch544: glibc-RHEL-2338-1.patch
Patch545: glibc-RHEL-2338-2.patch
Patch546: glibc-RHEL-2338-3.patch
Patch547: glibc-RHEL-2338-4.patch
Patch548: glibc-RHEL-15343-1.patch
Patch549: glibc-RHEL-15343-2.patch
Patch550: glibc-RHEL-15343-3.patch
Patch551: glibc-RHEL-15343-4.patch
Patch552: glibc-rhel-17157.patch
Patch553: glibc-RHEL-16016-1.patch
Patch554: glibc-RHEL-16016-2.patch
Patch555: glibc-RHEL-16016-3.patch
Patch556: glibc-RHEL-16016-4.patch
Patch557: glibc-RHEL-16016-5.patch
Patch558: glibc-RHEL-16016-6.patch
Patch559: glibc-RHEL-16016-7.patch
Patch560: glibc-RHEL-17319-1.patch
Patch561: glibc-RHEL-17319-2.patch
Patch562: glibc-RHEL-17319-3.patch
Patch563: glibc-RHEL-17319-4.patch
Patch564: glibc-RHEL-17465-1.patch
Patch565: glibc-RHEL-17465-2.patch
Patch566: glibc-RHEL-19862.patch
Patch567: glibc-RHEL-16643-1.patch
Patch568: glibc-RHEL-16643-2.patch
Patch569: glibc-RHEL-16643-3.patch
Patch570: glibc-RHEL-16643-4.patch
Patch571: glibc-RHEL-16643-5.patch
Patch572: glibc-RHEL-16643-6.patch
Patch573: glibc-RHEL-19444.patch
Patch574: glibc-RHEL-21556.patch
############################################################################## ##############################################################################
# Continued list of core "glibc" package information: # Continued list of core "glibc" package information:
@ -1914,6 +1975,7 @@ gzip -9nvf %{glibc_sysroot}%{_infodir}/libc*
# Copy the debugger interface documentation over to the right location # Copy the debugger interface documentation over to the right location
mkdir -p %{glibc_sysroot}%{_docdir}/glibc mkdir -p %{glibc_sysroot}%{_docdir}/glibc
cp elf/rtld-debugger-interface.txt %{glibc_sysroot}%{_docdir}/glibc cp elf/rtld-debugger-interface.txt %{glibc_sysroot}%{_docdir}/glibc
cp posix/gai.conf %{glibc_sysroot}%{_docdir}/glibc
%else %else
rm -f %{glibc_sysroot}%{_infodir}/dir rm -f %{glibc_sysroot}%{_infodir}/dir
rm -f %{glibc_sysroot}%{_infodir}/libc.info* rm -f %{glibc_sysroot}%{_infodir}/libc.info*
@ -2904,6 +2966,82 @@ update_gconv_modules_cache ()
%endif %endif
%changelog %changelog
* Wed Jan 24 2024 Patsy Griffin <patsy@redhat.com> - 2.34-100
- manual: fix order of arguments of memalign and aligned_alloc (RHEL-21556)
* Tue Jan 09 2024 Arjun Shankar <arjun@redhat.com> - 2.34-99
- getaddrinfo: Return correct error EAI_MEMORY when out-of-memory (RHEL-19444)
* Mon Jan 8 2024 Arjun Shankar <arjun@redhat.com> - 2.34-98
- getaddrinfo: Fix occasionally empty result due to nscd cache order (RHEL-16643)
* Tue Jan 2 2024 Florian Weimer <fweimer@redhat.com> - 2.34-97
- Re-enable output buffering for wide stdio streams (RHEL-19862)
* Thu Dec 21 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-96
- Fix TLS corruption during dlopen()/dlclose() sequences (RHEL-17465)
* Fri Dec 8 2023 Florian Weimer <fweimer@redhat.com> - 2.34-95
- Improve compatibility between underlinking and IFUNC resolvers (RHEL-17319)
* Thu Dec 7 2023 Patsy Griffin <patsy@redhat.com> - 2.34-94
- Update syscall-names.list for Linux 6.6. (RHEL-16016)
* Wed Dec 6 2023 Patsy Griffin <patsy@redhat.com> - 2.34-93
- malloc: Use __get_nprocs on arena_get2. (RHEL-17157)
* Fri Dec 1 2023 Patsy Griffin <patsy@redhat.com> - 2.34-92
- Improve test coverage for wcsdup, strdup and strndup. (RHEL-15343)
* Fri Nov 24 2023 Florian Weimer <fweimer@redhat.com> - 2.34-91
- fstat performance enhancement (RHEL-2338)
* Tue Nov 21 2023 Florian Weimer <fweimer@redhat.com> - 2.34-90
- ldconfig should skip temporary files created by RPM (RHEL-14383)
* Mon Nov 20 2023 Florian Weimer <fweimer@redhat.com> - 2.34-89
- Fix force-first handling in dlclose (RHEL-2491)
* Wed Nov 15 2023 Arjun Shankar <arjun@redhat.com> - 2.34-88
- nscd: Refer to /run instead of /var/run in systemd socket file
(RHEL-16275)
* Fri Nov 10 2023 Florian Weimer <fweimer@redhat.com> - 2.34-87
- Fix slow tls access after dlopen (RHEL-2123)
* Tue Oct 24 2023 Arjun Shankar <arjun@redhat.com> - 2.34-86
- Add /usr/share/doc/glibc/gai.conf to glibc-doc (RHEL-14545)
* Fri Oct 20 2023 Florian Weimer <fweimer@redhat.com> - 2.34-85
- nscd: Skip unusable entries in first pass in prune_cache (RHEL-3397)
* Mon Oct 9 2023 Florian Weimer <fweimer@redhat.com> - 2.34-84
- x86-64: Report non-zero cache sizes under TDX hypervisors (RHEL-1191)
* Mon Sep 25 2023 Florian Weimer <fweimer@redhat.com> - 2.34-83.7
- Fix memory leak regression in getaddrinfo (RHEL-2426)
* Tue Sep 19 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-83.6
- CVE-2023-4911 glibc: buffer overflow in ld.so leading to privilege escalation (RHEL-3000)
* Tue Sep 19 2023 Florian Weimer <fweimer@redhat.com> - 2.34-83.5
- Revert: Always call destructors in reverse constructor order (RHEL-2491)
* Mon Sep 18 2023 Siddhesh Poyarekar <siddhesh@redhat.com> - 2.34-83.4
- CVE-2023-4806 glibc: potential use-after-free in getaddrinfo (RHEL-2426)
* Fri Sep 15 2023 Siddhesh Poyarekar <siddhesh@redhat.com> - 2.34-83.3
- CVE-2023-4813: potential use-after-free in gaih_inet (RHEL-2438)
* Fri Sep 15 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-83.2
- CVE-2023-4527: Stack read overflow in getaddrinfo in no-aaaa mode (#2234716)
* Thu Sep 14 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-83.1
- Always call destructors in reverse constructor order (RHEL-2491)
* Wed Sep 13 2023 DJ Delorie <dj@redhat.com> - 2.34-83
- Add support for ppc64le hwcaps tunables (RHEL-1017)
* Tue Aug 15 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-82 * Tue Aug 15 2023 Carlos O'Donell <carlos@redhat.com> - 2.34-82
- Fix string and memory function tuning on small systems (#2213907) - Fix string and memory function tuning on small systems (#2213907)

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