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| author | Mikulas Patocka <mpatocka@redhat.com> | 2013-11-22 19:52:06 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2013-12-10 16:34:27 -0500 |
| commit | 5b2d06576c5410c10d95adfd5c4d8b24de861d87 (patch) | |
| tree | 252b895b66b63a84a166af0142472cdf3a1c3640 /drivers/md/dm-log-userspace-base.c | |
| parent | 230c83afdd9cd384348475bea1e14b80b3b6b1b8 (diff) | |
| download | blackbird-op-linux-5b2d06576c5410c10d95adfd5c4d8b24de861d87.tar.gz blackbird-op-linux-5b2d06576c5410c10d95adfd5c4d8b24de861d87.zip | |
dm table: fail dm_table_create on dm_round_up overflow
The dm_round_up function may overflow to zero. In this case,
dm_table_create() must fail rather than go on to allocate an empty array
with alloc_targets().
This fixes a possible memory corruption that could be caused by passing
too large a number in "param->target_count".
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/md/dm-log-userspace-base.c')
0 files changed, 0 insertions, 0 deletions
