mirror of
https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9.git
synced 2026-09-09 12:05:30 +08:00
Chris von Recklinghausen
bd017dbbf0
JIRA: https://issues.redhat.com/browse/RHEL-1848 commit 78a498c3a227f2ac773a8234b2ce092a4403f2c3 Author: Alexander Potapenko <glider@google.com> Date: Mon Oct 24 23:21:44 2022 +0200 x86: fortify: kmsan: fix KMSAN fortify builds Ensure that KMSAN builds replace memset/memcpy/memmove calls with the respective __msan_XXX functions, and that none of the macros are redefined twice. This should allow building kernel with both CONFIG_KMSAN and CONFIG_FORTIFY_SOURCE. Link: https://lkml.kernel.org/r/20221024212144.2852069-5-glider@google.com Link: https://github.com/google/kmsan/issues/89 Signed-off-by: Alexander Potapenko <glider@google.com> Reported-by: Tamas K Lengyel <tamas.lengyel@zentific.com> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris von Recklinghausen <crecklin@redhat.com>
22 lines
681 B
C
22 lines
681 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* KMSAN string functions API used in other headers.
|
|
*
|
|
* Copyright (C) 2022 Google LLC
|
|
* Author: Alexander Potapenko <glider@google.com>
|
|
*
|
|
*/
|
|
#ifndef _LINUX_KMSAN_STRING_H
|
|
#define _LINUX_KMSAN_STRING_H
|
|
|
|
/*
|
|
* KMSAN overrides the default memcpy/memset/memmove implementations in the
|
|
* kernel, which requires having __msan_XXX function prototypes in several other
|
|
* headers. Keep them in one place instead of open-coding.
|
|
*/
|
|
void *__msan_memcpy(void *dst, const void *src, size_t size);
|
|
void *__msan_memset(void *s, int c, size_t n);
|
|
void *__msan_memmove(void *dest, const void *src, size_t len);
|
|
|
|
#endif /* _LINUX_KMSAN_STRING_H */
|