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(parent: aa03a91) | patch
dm integrity: test for corrupted disk format during table load
authorMikulas Patocka <mpatocka@redhat.com>
Fri, 21 Jul 2017 15:58:38 +0000 (11:58 -0400)
committerMike Snitzer <snitzer@redhat.com>
Tue, 25 Jul 2017 14:11:14 +0000 (10:11 -0400)
commitbc86a41e96c5b6f07453c405e036d95acc673389
tree5476c50923b0377e7761f2eba6ff0198859c8df4tree | snapshot (tar.gz zip)
parentaa03a91ffaefcffb397cddf88b97215b3eff726dcommit | diff
dm integrity: test for corrupted disk format during table load

If the dm-integrity superblock was corrupted in such a way that the
journal_sections field was zero, the integrity target would deadlock
because it would wait forever for free space in the journal.

Detect this situation and refuse to activate the device.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 7eada909bfd7 ("dm: add integrity target")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-integrity.c diff | blob | blame | history