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(parent: b730bc2) | patch
dm cache: Fix UAF in destroy()
authorLuo Meng <luomeng12@huawei.com>
Tue, 29 Nov 2022 02:48:49 +0000 (10:48 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Jan 2023 10:41:47 +0000 (11:41 +0100)
commitf89767a25ac7d096beb86325769eb60ff1805846
tree4cc06bbd879082eedcec9397fa425fbcc1e713c4tree | snapshot
parentb730bc27355ad3541e8a560f0311348bdb544bcecommit | diff
dm cache: Fix UAF in destroy()

commit 6a459d8edbdbe7b24db42a5a9f21e6aa9e00c2aa upstream.

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

Therefore, cancelling timer again in destroy().

Cc: stable@vger.kernel.org
Fixes: 583abdd06fb81 ("dm: add cache 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-cache-target.c diff | blob | history
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