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(parent: b6c93cd) | 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>
Sat, 7 Jan 2023 10:11:45 +0000 (11:11 +0100)
commit9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff
tree89f06508dbc0ccb89563dc098d5bec1e3985de7ftree
parentb6c93cd61afab061d80cc842333abca97b289774commit | 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: 7431b7835f554 ("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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