linux/drivers/md/dm-clone-target.c
Luo Meng 9e113cd4f6 dm clone: Fix UAF in clone_dtr()
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>
2023-01-07 11:11:45 +01:00

2228 lines
54 KiB