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| author | Mike Snitzer <snitzer@redhat.com> | 2011-09-25 18:26:17 -0400 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2011-09-25 18:26:17 -0400 |
| commit | 876fbba1db4a377f050a2bb49b474c7527b2995d (patch) | |
| tree | df134b1c01cd6385afe7ff7171eb722063de6b4b /Documentation/ldm.txt | |
| parent | 68e58a294fb26f692697179e3f3ecf88dd8cb97c (diff) | |
dm table: avoid crash if integrity profile changes
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>
Cc: stable@kernel.org # 2.6.39
Diffstat (limited to 'Documentation/ldm.txt')
0 files changed, 0 insertions, 0 deletions