b88a2e4886
Upstream commit: 31da30f23cddd36db29d5b6a1c7619361b271fb4 - iconv: ISO-2022-CN-EXT: fix out-of-bound writes when writing escape sequence (CVE-2024-2961) Resolves: RHEL-31801 - x86_64: Exclude SSE, AVX and FMA4 variants in libm multiarch - Apply the Makefile sorting fix - powerpc: Fix ld.so address determination for PCREL mode (bug 31640) - x86-64: Simplify minimum ISA check ifdef conditional with if - x86-64: Don't use SSE resolvers for ISA level 3 or above - AArch64: Check kernel version for SVE ifuncs - aarch64: fix check for SVE support in assembler - aarch64/fpu: Sync libmvec routines from 2.39 and before with AOR - i386: Use generic memrchr in libc (bug 31316) Related: RHEL-35602 Fedora 40 commit: 1bea1361dc740cb07eff8eace4f58619cf8f4fe4
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
commit 31c7d69af59da0da80caa74b2ec6ae149013384d
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Fri Feb 16 07:40:37 2024 +0100
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i386: Use generic memrchr in libc (bug 31316)
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Before this change, we incorrectly used the SSE2 variant in the
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implementation, without checking that the system actually supports
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SSE2.
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Tested-by: Sam James <sam@gentoo.org>
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(cherry picked from commit 0d9166c2245cad4ac520b337dee40c9a583872b6)
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diff --git a/sysdeps/i386/i686/multiarch/memrchr-c.c b/sysdeps/i386/i686/multiarch/memrchr-c.c
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index ef7bbbe792afc78e..20bfdf3af35b66e4 100644
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--- a/sysdeps/i386/i686/multiarch/memrchr-c.c
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+++ b/sysdeps/i386/i686/multiarch/memrchr-c.c
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@@ -5,3 +5,4 @@ extern void *__memrchr_ia32 (const void *, int, size_t);
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#endif
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#include "string/memrchr.c"
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+strong_alias (__memrchr_ia32, __GI___memrchr)
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diff --git a/sysdeps/i386/i686/multiarch/memrchr-sse2.S b/sysdeps/i386/i686/multiarch/memrchr-sse2.S
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index d9dae04171bfedff..e123f87435b3c6a6 100644
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--- a/sysdeps/i386/i686/multiarch/memrchr-sse2.S
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+++ b/sysdeps/i386/i686/multiarch/memrchr-sse2.S
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@@ -720,5 +720,4 @@ L(ret_null):
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ret
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END (__memrchr_sse2)
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-strong_alias (__memrchr_sse2, __GI___memrchr)
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#endif
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