| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 168/199] kasan: fix incorrect arguments passing in kasan_add_zero_shadow | Date | Mon, 25 Jan 2021 19:39:50 +0100 |
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From: Lecopzer Chen <lecopzer@gmail.com>
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/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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- mm/kasan/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -492,7 +492,6 @@ int kasan_add_zero_shadow(void *start, u 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; }
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