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(parent: e4983ed) | 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)
commitb730bc27355ad3541e8a560f0311348bdb544bce
treec16c3eb32f34ad7bdfed8f22e633cc4d39735510tree | snapshot
parente4983ed60f615defc7f0751208643ce77bfca7e3commit | diff
dm clone: Fix UAF in clone_dtr()

commit e4b5957c6f749a501c464f92792f1c8e26b61a94 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: 4b962bc8693cb ("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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