From: Lecopzer Chen <lecopzer@gmail.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
kasan-dev@googlegroups.com
Cc: dan.j.williams@intel.com, aryabinin@virtuozzo.com,
glider@google.com, dvyukov@google.com, akpm@linux-foundation.org,
linux-mediatek@lists.infradead.org, yj.chiang@mediatek.com,
Lecopzer Chen <lecopzer@gmail.com>,
Lecopzer Chen <lecopzer.chen@mediatek.com>
Subject: [PATCH] kasan: fix incorrect arguments passing in kasan_add_zero_shadow
Date: Sun, 3 Jan 2021 14:38:47 +0800 [thread overview]
Message-ID: <20210103063847.5963-1-lecopzer@gmail.com> (raw)
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@mediatek.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
next reply other threads:[~2021-01-03 6:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-03 6:38 Lecopzer Chen [this message]
2021-01-08 18:25 ` Andrey Konovalov
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