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62843c2e42
linux/drivers/block
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Omar Sandoval bdac616db9 loop: fix LOOP_GET_STATUS lock imbalance 
Commit 2d1d4c1e59 made loop_get_status() drop lo_ctx_mutex before
returning, but the loop_get_status_old(), loop_get_status64(), and
loop_get_status_compat() wrappers don't call loop_get_status() if the
passed argument is NULL. The callers expect that the lock is dropped, so
make sure we drop it in that case, too.

Reported-by: syzbot+31e8daa8b3fc129e75f2@syzkaller.appspotmail.com
Fixes: 2d1d4c1e59 ("loop: don't call into filesystem while holding lo_ctl_mutex")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-04-10 08:38:46 -06:00
..
aoe aoe: use ktime_t instead of timeval 2018-01-17 08:41:07 -07:00
drbd block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
mtip32xx mtip32xx: Use the blk_queue_flag_*() functions 2018-03-08 14:13:48 -07:00
paride cdrom: do not call check_disk_change() inside cdrom_open() 2018-03-09 08:06:35 -07:00
rsxx block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
xen-blkback Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
zram block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h> 2018-03-17 14:45:23 -06:00
amiflop.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
ataflop.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
brd.c block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h> 2018-03-17 14:45:23 -06:00
cryptoloop.c block: cryptoloop - Fix build warning 2017-09-26 07:41:22 -06:00
DAC960.c pci-v4.16-changes 2018-02-06 09:59:40 -08:00
DAC960.h block: DAC960: Replace PCI pool old API 2018-01-02 16:09:50 -06:00
floppy.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
Kconfig null_blk: remove explicit 'select FAULT_INJECTION' 2018-01-11 07:58:31 -07:00
loop.c loop: fix LOOP_GET_STATUS lock imbalance 2018-04-10 08:38:46 -06:00
loop.h block/loop: make loop cgroup aware 2017-09-26 07:41:22 -06:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nbd.c block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
null_blk.c block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h> 2018-03-17 14:45:23 -06:00
pktcdvd.c block: fix a typo 2018-03-01 08:41:27 -07:00
ps3disk.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
ps3vram.c block/ps3vram: Check return of ps3vram_cache_init 2017-08-17 23:03:44 +10:00
rbd_types.h rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
rbd.c block: Move SECTOR_SIZE and SECTOR_SHIFT definitions into <linux/blkdev.h> 2018-03-17 14:45:23 -06:00
skd_main.c block: Use blk_queue_flag_*() in drivers instead of queue_flag_*() 2018-03-08 14:13:48 -07:00
skd_s1120.h skd: Use __packed only when needed 2017-08-18 08:45:29 -06:00
sunvdc.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
swim3.c treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
swim_asm.S
swim.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00
sx8.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
umem.c block: Fix a race between the cgroup code and request queue initialization 2018-02-28 12:23:35 -07:00
umem.h
virtio_blk.c virtio, vhost: fixes, cleanups, features 2018-02-08 10:41:00 -08:00
xen-blkfront.c for-4.17/block-20180402 2018-04-05 14:27:02 -07:00
xsysace.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
z2ram.c genhd: Rename get_disk() to get_disk_and_module() 2018-02-26 09:48:42 -07:00