diff options
| author | Eric Biggers <ebiggers@kernel.org> | 2025-12-19 11:29:08 -0800 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:21:04 -0500 |
| commit | b154a868a3856fb5216c4f82981d8a503832e095 (patch) | |
| tree | 594dca9e020b7e85c12b517612764ee7fcd67be0 /drivers/md | |
| parent | 2cec13cd55bcb008c29883152f3eda7b56826e63 (diff) | |
dm-verity: correctly handle dm_bufio_client_create() failure
[ Upstream commit 119f4f04186fa4f33ee6bd39af145cdaff1ff17f ]
If either of the calls to dm_bufio_client_create() in verity_fec_ctr()
fails, then dm_bufio_client_destroy() is later called with an ERR_PTR()
argument. That causes a crash. Fix this.
Fixes: a739ff3f543a ("dm verity: add support for forward error correction")
Cc: stable@vger.kernel.org
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm-verity-fec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c index c79de517afee..0ac98a620f3a 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -534,9 +534,9 @@ void verity_fec_dtr(struct dm_verity *v) mempool_exit(&f->output_pool); kmem_cache_destroy(f->cache); - if (f->data_bufio) + if (!IS_ERR_OR_NULL(f->data_bufio)) dm_bufio_client_destroy(f->data_bufio); - if (f->bufio) + if (!IS_ERR_OR_NULL(f->bufio)) dm_bufio_client_destroy(f->bufio); if (f->dev) |