Wentao_Liang 5d8325fd15 drivers:md:fix a potential use-after-free bug
[ Upstream commit 104212471b1c1817b311771d817fb692af983173 ]

In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and
may cause sh to be released. However, sh is subsequently used in lines
2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an
use-after-free bug.

It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of
the function.

Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-25 11:38:17 +02:00
..
2019-11-12 19:12:07 -07:00
2021-01-27 11:54:57 +01:00
2022-01-16 09:14:21 +01:00
2022-08-21 15:15:25 +02:00