Eric Wheeler f5b0d85307 bcache: fix cache_set_flush() NULL pointer dereference on OOM ...

commit f8b11260a445169989d01df75d35af0f56178f95 upstream.

When bch_cache_set_alloc() fails to kzalloc the cache_set, the
asyncronous closure handling tries to dereference a cache_set that
hadn't yet been allocated inside of cache_set_flush() which is called
by __cache_set_unregister() during cleanup.  This appears to happen only
during an OOM condition on bcache_register.

Signed-off-by: Eric Wheeler <bcache@linux.ewheeler.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>

2016-06-07 10:42:46 +02:00

..

alloc.c

bcache: Allocator cleanup/fixes

2013-04-30 19:14:40 -07:00

bcache.h

bcache: Fix a writeback performance regression

2013-10-05 07:13:09 -07:00

bset.c

bcache: Data corruption fix

2014-02-06 11:08:16 -08:00

bset.h

…

btree.c

bcache: Fix a shrinker deadlock

2013-10-05 07:13:09 -07:00

btree.h

…

closure.c

bcache: Fix a dumb race

2013-07-28 16:30:09 -07:00

closure.h

…

debug.c

bcache: Disable broken btree fuzz tester

2013-04-08 13:33:49 -07:00

debug.h

…

io.c

md: bcache: io.c: fix a potential NULL pointer dereference

2013-08-29 09:47:40 -07:00

journal.c

bcache: Fix a flush/fua performance bug

2013-10-05 07:13:09 -07:00

journal.h

…

Kconfig

bcache: drop "select CLOSURES"

2013-05-15 00:42:51 -07:00

Makefile

…

movinggc.c

…

request.c

bcache: Fixed incorrect order of arguments to bio_alloc_bioset()

2013-11-13 12:05:30 +09:00

request.h

…

stats.c

bcache: Fix error handling in init code

2013-05-15 00:48:14 -07:00

stats.h

…

super.c

bcache: fix cache_set_flush() NULL pointer dereference on OOM

2016-06-07 10:42:46 +02:00

sysfs.c

bcache: Strip endline when writing the label through sysfs

2013-10-05 07:13:09 -07:00

sysfs.h

…

trace.c

…

util.c

bcache: Fix a writeback performance regression

2013-10-05 07:13:09 -07:00

util.h

bcache: Fix a writeback performance regression

2013-10-05 07:13:09 -07:00

writeback.c

bcache: Fix a dumb CPU spinning bug in writeback

2013-10-05 07:13:09 -07:00