dm clone: Fix UAF in clone_dtr()

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commit e4b5957c6f 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: 7431b7835f ("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>

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Luo Meng 2022-11-29 10:48:48 +08:00 • committed by Greg Kroah-Hartman

parent 9215b25f2e

commit 856edd0e92

1 changed files with 1 additions and 0 deletions

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drivers/md/dm-clone-target.c

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