diff options
| author | Eric Biggers <ebiggers@kernel.org> | 2025-12-19 22:29:08 +0300 |
|---|---|---|
| committer | Mikulas Patocka <mpatocka@redhat.com> | 2026-01-04 22:35:32 +0300 |
| commit | 119f4f04186fa4f33ee6bd39af145cdaff1ff17f (patch) | |
| tree | b41f6313337c0c97e75b5ba38605b085972db1d0 | |
| parent | 1a257c5fd33a5b641478a7dd851861f64529c7bb (diff) | |
| download | linux-119f4f04186fa4f33ee6bd39af145cdaff1ff17f.tar.xz | |
dm-verity: correctly handle dm_bufio_client_create() failure
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>
| -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 ef9970b889aa..7583607a8aa6 100644 --- a/drivers/md/dm-verity-fec.c +++ b/drivers/md/dm-verity-fec.c @@ -501,9 +501,9 @@ 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) |