The patch titled
Subject: kasan: fix incorrect arguments passing in kasan_add_zero_shadow
has been added to the -mm tree. Its filename is
kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Lecopzer Chen <lecopzer@xxxxxxxxx>
Subject: 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@xxxxxxxxx
Fixes: 0207df4fa1a86 ("kernel/memremap, kasan: make ZONE_DEVICE with work with KASAN")
Signed-off-by: Lecopzer Chen <lecopzer.chen@xxxxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kasan/init.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/mm/kasan/init.c~kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow
+++ a/mm/kasan/init.c
@@ -485,7 +485,6 @@ 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;
}
_
Patches currently in -mm which might be from lecopzer@xxxxxxxxx are
kasan-fix-unaligned-address-is-unhandled-in-kasan_remove_zero_shadow.patch
kasan-fix-incorrect-arguments-passing-in-kasan_add_zero_shadow.patch
