| From | Ilya Leoshkevich <> | Subject | [PATCH v2 13/33] kmsan: Introduce memset_no_sanitize_memory() | Date | Tue, 21 Nov 2023 23:01:07 +0100 |
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Add a wrapper for memset() that prevents unpoisoning. This is useful for filling memory allocator redzones.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> --- include/linux/kmsan.h | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/include/linux/kmsan.h b/include/linux/kmsan.h index ff8fd95733fa..439df72c8dc6 100644 --- a/include/linux/kmsan.h +++ b/include/linux/kmsan.h @@ -345,4 +345,13 @@ static inline void *kmsan_get_metadata(void *addr, bool is_origin) #endif +/** + * memset_no_sanitize_memory() - memset() without the KMSAN instrumentation. + */ +__no_sanitize_memory +static inline void *memset_no_sanitize_memory(void *s, int c, size_t n) +{ + return memset(s, c, n); +} + #endif /* _LINUX_KMSAN_H */ -- 2.41.0
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