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(parent: 0cb9704) | patch
dm clone: Fix UAF in clone_dtr()
authorLuo Meng <luomeng12@huawei.com>
Tue, 29 Nov 2022 02:48:48 +0000 (10:48 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Jan 2023 10:41:47 +0000 (11:41 +0100)
commit512ac803e64e46af54994c79c07fd9bbd74369cd
treec16c3eb32f34ad7bdfed8f22e633cc4d39735510tree | snapshot
parent0cb970417fd9190da862f1b53e90615b309dc340commit | diff
dm clone: Fix UAF in clone_dtr()

commit 0f55bc7266ad248a2f388c3ee27d20c4d187df62 upstream.

Dm_clone also has the same UAF problem when dm_resume()
and dm_destroy() are concurrent.

Therefore, cancelling timer again in clone_dtr().

Cc: stable@vger.kernel.org
Fixes: 926c5639707c0 ("dm: add clone target")
Signed-off-by: Luo Meng <luomeng12@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/md/dm-clone-target.c diff | blob | history
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