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glibc/SOURCES/glibc-upstream-2.34-375.patch

40 lines
1.3 KiB

commit d36f457870a807f6f29880a2f2bde5e9b761f00c
Author: Martin Sebor <msebor@redhat.com>
Date: Tue Jan 25 17:38:31 2022 -0700
intl: Avoid -Wuse-after-free [BZ #26779]
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 7845064d2d5a50e347ee9f4b78ec5e6316190154)
diff --git a/intl/localealias.c b/intl/localealias.c
index 375af2b03153acce..28041f2a48f643fa 100644
--- a/intl/localealias.c
+++ b/intl/localealias.c
@@ -318,7 +318,15 @@ read_alias_file (const char *fname, int fname_len)
if (string_space_act + alias_len + value_len > string_space_max)
{
- /* Increase size of memory pool. */
+#pragma GCC diagnostic push
+
+#if defined __GNUC__ && __GNUC__ >= 12
+ /* Suppress the valid GCC 12 warning until the code below is changed
+ to avoid using pointers to the reallocated block. */
+# pragma GCC diagnostic ignored "-Wuse-after-free"
+#endif
+
+ /* Increase size of memory pool. */
size_t new_size = (string_space_max
+ (alias_len + value_len > 1024
? alias_len + value_len : 1024));
@@ -351,6 +359,8 @@ read_alias_file (const char *fname, int fname_len)
value, value_len);
string_space_act += value_len;
+#pragma GCC diagnostic pop
+
++nmap;
++added;
}