This series, for dm and bcache parts, replaces atomic_t reference counters with the new refcount_t type and API (see include/linux/refcount.h). By doing this we prevent intentional or accidental underflows or overflows that can led to use-after-free vulnerabilities.
The patches are fully independent and can be cherry-picked separately. Patches are based on top of linux-next as of yesterday. If there are no objections to the patches, please merge them via respective trees Elena Reshetova (4): bcache: convert cached_dev.count from atomic_t to refcount_t dm cache: convert dm_cache_metadata.ref_count from atomic_t to refcount_t dm: convert dm_dev_internal.count from atomic_t to refcount_t dm: convert table_device.count from atomic_t to refcount_t drivers/md/bcache/bcache.h | 7 ++++--- drivers/md/bcache/super.c | 6 +++--- drivers/md/bcache/writeback.h | 2 +- drivers/md/dm-cache-metadata.c | 9 +++++---- drivers/md/dm-table.c | 6 +++--- drivers/md/dm.c | 12 +++++++----- drivers/md/dm.h | 3 ++- 7 files changed, 25 insertions(+), 20 deletions(-) -- 2.7.4