diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2011-09-25 23:26:17 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-16 14:14:53 -0700 |
| commit | 25dd1546f84a5d5bf85686e36b6d5fb8a4cbcca3 (patch) | |
| tree | 6ac67a645d42fa2730eb6b8f8a71ea078c5c676c /net/lapb/lapb_timer.c | |
| parent | 7f3b5ef8184a929f56293d6c7a88f426c7b74558 (diff) | |
dm table: avoid crash if integrity profile changes
commit 876fbba1db4a377f050a2bb49b474c7527b2995d upstream.
Commit a63a5cf (dm: improve block integrity support) introduced a
two-phase initialization of a DM device's integrity profile. This
patch avoids dereferencing a NULL 'template_disk' pointer in
blk_integrity_register() if there is an integrity profile mismatch in
dm_table_set_integrity().
This can occur if the integrity profiles for stacked devices in a DM
table are changed between the call to dm_table_prealloc_integrity() and
dm_table_set_integrity().
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions