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| author | Mikulas Patocka <mpatocka@redhat.com> | 2021-01-20 14:02:31 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2021-01-21 22:41:43 +0300 |
| commit | 2d06dfecb132a1cc2e374a44eae83b5c4356b8b4 (patch) | |
| tree | 1b237ec09b83baec1bff7c3d46b5bd9fb741be19 /drivers/md/dm-integrity.c | |
| parent | 19c329f6808995b142b3966301f217c831e7cf31 (diff) | |
| download | linux-2d06dfecb132a1cc2e374a44eae83b5c4356b8b4.tar.xz | |
dm integrity: fix a crash if "recalculate" used without "internal_hash"
Recalculate can only be specified with internal_hash.
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-integrity.c')
| -rw-r--r-- | drivers/md/dm-integrity.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 81df019ab284..cce203adcf77 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -4235,6 +4235,12 @@ try_smaller_buffer: r = -ENOMEM; goto bad; } + } else { + if (ic->sb->flags & cpu_to_le32(SB_FLAG_RECALCULATING)) { + ti->error = "Recalculate can only be specified with internal_hash"; + r = -EINVAL; + goto bad; + } } ic->bufio = dm_bufio_client_create(ic->meta_dev ? ic->meta_dev->bdev : ic->dev->bdev, |