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(parent: 856edd0) | 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>
Thu, 12 Jan 2023 10:58:53 +0000 (11:58 +0100)
commitd2a0b298ebf83ab6236f66788a3541e91ce75a70
treeb81eb2f91cbe6ec0916e262f520e665aa0978794tree | snapshot
parent856edd0e92f3fe89606b704c86a93daedddfe6eccommit | 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: c6b4fcbad044e ("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
Domain: System / Kernel;