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Bart Van Assche e869b5462f blk-mq: Unregister debugfs attributes earlier 
We currently call blk_mq_free_queue() from blk_cleanup_queue()
before we unregister the debugfs attributes for that queue in
blk_release_queue(). This leaves a window open during which
accessing most of the mq debugfs attributes would cause a
use-after-free. Additionally, the "state" attribute allows
running the queue, which we should not do after the queue has
entered the "dead" state. Fix both cases by unregistering the
debugfs attributes before freeing queue resources starts.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-04-26 15:09:04 -06:00
..
partitions partitions/efi: Fix integer overflow in GPT size calculation 2017-01-17 09:02:31 -07:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bfq-cgroup.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bfq-iosched.c block, bfq: don't dereference bic before null checking it 2017-04-20 08:19:23 -06:00
bfq-iosched.h bfq: fix compile error if CONFIG_CGROUPS=n 2017-04-20 09:39:12 -06:00
bfq-wf2q.c block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: trace completion of all bios. 2017-04-07 09:40:52 -06:00
blk-cgroup.c blkcg: allocate struct blkcg_gq outside request queue spinlock 2017-03-29 11:27:19 -06:00
blk-core.c blk-mq: Unregister debugfs attributes earlier 2017-04-26 15:09:04 -06:00
blk-exec.c block: remove the errors field from struct request 2017-04-20 12:16:10 -06:00
blk-flush.c block: make __blk_end_bidi_request private 2017-04-19 10:19:47 -06:00
blk-integrity.c block: fix blk_integrity_register to use template's interval_exp if not 0 2017-04-23 12:59:56 -06:00
blk-ioc.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-03-03 10:53:35 -08:00
blk-lib.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
blk-map.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
blk-merge.c block: implement splitting of REQ_OP_WRITE_ZEROES bios 2017-04-08 11:25:38 -06:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-debugfs.c blk-mq-debugfs: Rename functions for registering and unregistering the mq directory 2017-04-26 15:09:04 -06:00
blk-mq-pci.c blk-mq-pci: Fix two spelling mistakes 2017-03-29 11:09:51 -06:00
blk-mq-sched.c blk-mq: Remove blk_mq_sched_move_to_dispatch() 2017-04-20 17:28:30 -06:00
blk-mq-sched.h blk-mq: Remove blk_mq_sched_move_to_dispatch() 2017-04-20 17:28:30 -06:00
blk-mq-sysfs.c blk-mq: Only unregister hctxs for which registration succeeded 2017-04-26 15:09:04 -06:00
blk-mq-tag.c blk-mq: add shallow depth option for blk_mq_get_tag() 2017-04-14 14:06:54 -06:00
blk-mq-tag.h blk-mq-sched: Allocate sched reserved tags as specified in the original queue tagset 2017-03-02 08:56:04 -07:00
blk-mq-virtio.c blk-mq: provide a default queue mapping for virtio device 2017-02-27 20:54:05 +02:00
blk-mq.c blk-mq: Fix preempt count imbalance 2017-04-21 12:00:40 -06:00
blk-mq.h blk-mq-debugfs: Rename functions for registering and unregistering the mq directory 2017-04-26 15:09:04 -06:00
blk-settings.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
blk-softirq.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/topology.h> 2017-03-02 08:42:26 +01:00
blk-stat.c blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-stat.h blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-sysfs.c blk-mq: Register <dev>/queue/mq after having registered <dev>/queue 2017-04-26 15:09:04 -06:00
blk-tag.c blk-mq-sched: add framework for MQ capable IO schedulers 2017-01-17 10:04:20 -07:00
blk-throttle.c blk-throttle: fix unused variable warning with BLK_DEV_THROTTLING_LOW=n 2017-04-20 09:41:36 -06:00
blk-timeout.c block: remove the errors field from struct request 2017-04-20 12:16:10 -06:00
blk-wbt.c blk-stat: kill blk_stat_rq_ddir() 2017-04-21 07:56:23 -06:00
blk-wbt.h block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h block: Export blk_init_request_from_bio() 2017-04-19 17:38:30 -06:00
bounce.c Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2015-09-19 18:57:09 -07:00
bsg-lib.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
bsg.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
cfq-iosched.c cfq: Disable writeback throttling by default 2017-04-05 08:15:08 -06:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
deadline-iosched.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
elevator.c block: Make writeback throttling defaults consistent for SQ devices 2017-04-19 08:49:03 -06:00
genhd.c block: Fix oops scsi_disk_get() 2017-03-22 20:11:37 -06:00
ioctl.c block: remove the discard_zeroes_data flag 2017-04-08 11:25:38 -06:00
ioprio.c block: Optimize ioprio_best() 2017-04-19 17:38:36 -06:00
Kconfig blk-throttle: add configure option for new .low interface 2017-03-28 08:02:20 -06:00
Kconfig.iosched block, bfq: add full hierarchical scheduling and cgroups support 2017-04-19 08:30:26 -06:00
kyber-iosched.c blk-stat: convert blk-stat bucket callback to signed 2017-04-20 15:29:16 -06:00
Makefile block, bfq: split bfq-iosched.c into multiple source files 2017-04-19 08:48:24 -06:00
mq-deadline.c block: enumify ELEVATOR_*_MERGE 2017-02-08 13:43:06 -07:00
noop-iosched.c block: move existing elevator ops to union 2017-01-17 10:03:33 -07:00
opal_proto.h block/sed-opal: allocate struct opal_dev dynamically 2017-02-17 12:41:47 -07:00
partition-generic.c block: get rid of blk_integrity_revalidate() 2017-04-21 14:17:27 -06:00
scsi_ioctl.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
sed-opal.c block: sed-opal: Tone down all the pr_* to debugs 2017-04-07 14:24:16 -06:00
t10-pi.c block: constify struct blk_integrity_profile 2017-03-24 20:34:39 -06:00