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authorLecopzer Chen <lecopzer@gmail.com>2021-01-23 21:01:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-01-24 10:34:52 -0800
commit5dabd1712cd056814f9ab15f1d68157ceb04e741 (patch)
treeb9aac80e0847c59635c499080a1efb29c1eaa489 /mm/kasan/init.c
parenta11a496ee6e2ab6ed850233c96b94caf042af0b9 (diff)
kasan: fix incorrect arguments passing in kasan_add_zero_shadow
kasan_remove_zero_shadow() shall use original virtual address, start and size, instead of shadow address. Link: https://lkml.kernel.org/r/20210103063847.5963-1-lecopzer@gmail.com Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com> Reviewed-by: Andrey Konovalov <andreyknvl@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Alexander Potapenko <glider@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan/init.c')
-rw-r--r--mm/kasan/init.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/mm/kasan/init.c b/mm/kasan/init.c
index 91049c1b8994..c4605ac9837b 100644
--- a/mm/kasan/init.c
+++ b/mm/kasan/init.c
@@ -486,7 +486,6 @@ int kasan_add_zero_shadow(void *start, unsigned long size)
ret = kasan_populate_early_shadow(shadow_start, shadow_end);
if (ret)
- kasan_remove_zero_shadow(shadow_start,
- size >> KASAN_SHADOW_SCALE_SHIFT);
+ kasan_remove_zero_shadow(start, size);
return ret;
}