| From | Ilya Leoshkevich <> | Subject | [PATCH v2 16/33] mm: slub: Let KMSAN access metadata | Date | Tue, 21 Nov 2023 23:01:10 +0100 |
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Building the kernel with CONFIG_SLUB_DEBUG and CONFIG_KMSAN causes KMSAN to complain about touching redzones in kfree().
Fix by extending the existing KASAN-related metadata_access_enable() and metadata_access_disable() functions to KMSAN.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> --- mm/slub.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/slub.c b/mm/slub.c index 169e5f645ea8..6e61c27951a4 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -700,10 +700,12 @@ static int disable_higher_order_debug; static inline void metadata_access_enable(void) { kasan_disable_current(); + kmsan_disable_current(); } static inline void metadata_access_disable(void) { + kmsan_enable_current(); kasan_enable_current(); } -- 2.41.0
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