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Date: Sun, 3 Jan 2021 14:38:47 +0800 From: Lecopzer Chen <lecopzer@...il.com> To: linux-kernel@...r.kernel.org, linux-mm@...ck.org, kasan-dev@...glegroups.com Cc: dan.j.williams@...el.com, aryabinin@...tuozzo.com, glider@...gle.com, dvyukov@...gle.com, akpm@...ux-foundation.org, linux-mediatek@...ts.infradead.org, yj.chiang@...iatek.com, Lecopzer Chen <lecopzer@...il.com>, Lecopzer Chen <lecopzer.chen@...iatek.com> Subject: [PATCH] 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. Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN") Signed-off-by: Lecopzer Chen <lecopzer.chen@...iatek.com> --- mm/kasan/init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/kasan/init.c b/mm/kasan/init.c index bc0ad208b3a7..67051cfae41c 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -481,7 +481,6 @@ 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; } -- 2.25.1
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