You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
gdb/SOURCES/libiberty-rhbz-2132600-prev...

28 lines
956 B

From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lu=C3=ADs=20Ferreira?= <contact@lsferreira.net>
Date: Thu, 23 Sep 2021 11:33:47 -0400
Subject: libiberty-rhbz-2132600-prevent-buffer-overflow.patch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
;; Backport libiberty: prevent buffer overflow when decoding user input
;; (Luís Ferreira, RHBZ2132600)
libiberty/
* d-demangle.c (dlang_symbol_backref): Ensure strlen of
string is less than length computed by dlang_number.
diff --git a/libiberty/d-demangle.c b/libiberty/d-demangle.c
--- a/libiberty/d-demangle.c
+++ b/libiberty/d-demangle.c
@@ -380,7 +380,7 @@ dlang_symbol_backref (string *decl, const char *mangled,
/* Must point to a simple identifier. */
backref = dlang_number (backref, &len);
- if (backref == NULL)
+ if (backref == NULL || strlen (backref) < len)
return NULL;
backref = dlang_lname (decl, backref, len);