Dm_integrity also has the same UAF problem when dm_resume() and dm_destroy() are concurrent.
Therefore, canceling timer again in dm_integrity_dtr(). Fixes: 7eada909bfd7a (dm: add integrity target) Signed-off-by: Luo Meng <[email protected]> --- drivers/md/dm-integrity.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index e97e9f97456d..1388ee35571e 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -4558,6 +4558,8 @@ static void dm_integrity_dtr(struct dm_target *ti) BUG_ON(!RB_EMPTY_ROOT(&ic->in_progress)); BUG_ON(!list_empty(&ic->wait_list)); + if (ic->mode == 'B') + cancel_delayed_work_sync(&ic->bitmap_flush_work); if (ic->metadata_wq) destroy_workqueue(ic->metadata_wq); if (ic->wait_wq) -- 2.31.1 -- dm-devel mailing list [email protected] https://listman.redhat.com/mailman/listinfo/dm-devel
