From: Lecopzer Chen <[email protected]> commit 5dabd1712cd056814f9ab15f1d68157ceb04e741 upstream.
kasan_remove_zero_shadow() shall use original virtual address, start and size, instead of shadow address. Link: https://lkml.kernel.org/r/[email protected] Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen <[email protected]> Reviewed-by: Andrey Konovalov <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Dan Williams <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Alexander Potapenko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- mm/kasan/kasan_init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/kasan/kasan_init.c +++ b/mm/kasan/kasan_init.c @@ -487,7 +487,6 @@ int kasan_add_zero_shadow(void *start, u ret = kasan_populate_zero_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; }
