diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2018-08-16 12:23:19 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-08-16 13:43:01 -0400 |
| commit | 1e1132ea21da6d7be92a72195204379c819cb70b (patch) | |
| tree | b983945975d697c37ac0193d18ca022cca4c3fb0 /drivers/devfreq/governor_powersave.c | |
| parent | bc9e9cf0401f18e33b78d4c8a518661b8346baf7 (diff) | |
| download | linux-1e1132ea21da6d7be92a72195204379c819cb70b.tar.gz | |
dm writecache: fix a crash due to reading past end of dirty_bitmap
wc->dirty_bitmap_size is in bytes so must multiply it by 8, not by
BITS_PER_LONG, to get number of bitmap_bits.
Fixes crash in find_next_bit() that was reported:
https://bugzilla.kernel.org/show_bug.cgi?id=200819
Reported-by: edo.rus@gmail.com
Fixes: 48debafe4f2f ("dm: add writecache target")
Cc: stable@vger.kernel.org # 4.18
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/devfreq/governor_powersave.c')
0 files changed, 0 insertions, 0 deletions