Jens Axboe be10336a90 bfq-iosched: ensure to clear bic/bfqq pointers when preparing request ... commit 72961c4e60 upstream. Even if we don't have an IO context attached to a request, we still need to clear the priv[0..1] pointers, as they could be pointing to previously used bic/bfqq structures. If we don't do so, we'll either corrupt memory on dispatching a request, or cause an imbalance in counters. Inspired by a fix from Kees. Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name> Reported-by: Kees Cook <keescook@chromium.org> Cc: stable@vger.kernel.org Fixes: aee69d78de ("block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler") Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-01 12:58:19 -07:00
..
partitions	partitions/msdos: Unable to mount UFS 44bsd partitions	2018-04-08 14:26:28 +02:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig.iosched	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
badblocks.c	badblocks: fix wrong return value in badblocks_set if badblocks are disabled	2017-12-20 10:10:26 +01:00
bfq-cgroup.c	block, bfq: put async queues for root bfq groups too	2018-04-12 12:32:19 +02:00
bfq-iosched.c	bfq-iosched: ensure to clear bic/bfqq pointers when preparing request	2018-05-01 12:58:19 -07:00
bfq-iosched.h	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
bfq-wf2q.c	block, bfq: guarantee update_next_in_service always returns an eligible entity	2017-08-31 08:20:31 -06:00
bio-integrity.c	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
bio.c	block: Set BIO_TRACE_COMPLETION on new bio during split	2018-04-26 11:02:10 +02:00
blk-cgroup.c	blkcg: avoid free blkcg_root when failed to alloc blkcg policy	2017-08-25 13:51:07 -06:00
blk-core.c	blk-mq: fix discard merge with scheduler attached	2018-04-26 11:02:15 +02:00
blk-exec.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
blk-flush.c	block: update comments to reflect REQ_FLUSH -> REQ_PREFLUSH rename	2017-08-25 10:36:54 -06:00
blk-integrity.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
blk-ioc.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-lib.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-map.c	blk_rq_map_user_iov: fix error override	2018-02-25 11:07:49 +01:00
blk-merge.c	blk-mq: fix discard merge with scheduler attached	2018-04-26 11:02:15 +02:00
blk-mq-cpumap.c	blk-mq: don't keep offline CPUs mapped to hctx 0	2018-04-19 08:56:20 +02:00
blk-mq-debugfs.c	blk-mq-debugfs: don't allow write on attributes with seq_operations set	2018-04-26 11:02:11 +02:00
blk-mq-debugfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-mq-pci.c	blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL	2017-08-18 08:08:14 -06:00
blk-mq-rdma.c	block: Add rdma affinity based queue mapping helper	2017-08-08 14:58:03 -04:00
blk-mq-sched.c	blk-mq-sched: dispatch from scheduler IFF progress is made in ->dispatch	2017-12-20 10:10:27 +01:00
blk-mq-sched.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-mq-sysfs.c	blk-mq: untangle debugfs and sysfs	2017-05-04 08:24:13 -06:00
blk-mq-tag.c	blk-mq: Make blk_mq_reinit_tagset() calls easier to read	2017-08-18 08:36:58 -06:00
blk-mq-tag.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
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: turn WARN_ON in __blk_mq_run_hw_queue into printk	2018-04-26 11:02:07 +02:00
blk-mq.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-settings.c	block: Warn if blk_queue_rq_timed_out() is called for a blk-mq queue	2017-08-23 12:02:30 -06:00
blk-softirq.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-stat.c	blk-stat: don't use this_cpu_ptr() in a preemptable section	2017-05-10 07:40:18 -06:00
blk-stat.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-sysfs.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-tag.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-throttle.c	block-throttle: avoid double charge	2017-12-29 17:53:47 +01:00
blk-timeout.c	block: Fix a race between blk_cleanup_queue() and timeout handling	2017-11-30 08:40:52 +00:00
blk-wbt.c	blk-wbt: account flush requests correctly	2018-02-22 15:42:29 +01:00
blk-wbt.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blk-zoned.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
blk.h	block: drain queue before waiting for q_usage_counter becoming zero	2018-03-03 10:24:35 +01:00
bounce.c	block: don't let passthrough IO go into .make_request_fn()	2018-01-02 20:31:05 +01:00
bsg-lib.c	bsg-lib: fix use-after-free under memory-pressure	2017-10-04 08:35:04 -06:00
bsg.c	bsg: remove #if 0'ed code	2017-08-29 10:50:30 -06:00
cfq-iosched.c	block/cfq: cache rightmost rb_node	2017-09-08 18:26:49 -07:00
cmdline-parser.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
compat_ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
deadline-iosched.c	block, scheduler: convert xxx_var_store to void	2017-08-28 10:01:08 -06:00
elevator.c	block: fix warning when I/O elevator is changed as request_queue is being removed	2017-08-28 10:52:44 -06:00
genhd.c	Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block	2017-09-07 11:59:42 -07:00
ioctl.c	block: remove the discard_zeroes_data flag	2017-04-08 11:25:38 -06:00
ioprio.c	block: Add fallthrough markers to switch statements	2017-06-21 11:46:07 -06:00
kyber-iosched.c	block: kyber: fix domain token leak during requeue	2018-03-08 22:41:05 -08:00
mq-deadline.c	mq-deadline: Enable auto-loading when built as module	2017-08-29 10:47:23 -06:00
noop-iosched.c	block: move existing elevator ops to union	2017-01-17 10:03:33 -07:00
opal_proto.h	block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled	2017-09-11 09:45:52 -06:00
partition-generic.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
scsi_ioctl.c	block: Change argument type of scsi_req_init()	2017-06-20 19:27:14 -06:00
sed-opal.c	block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled	2017-09-11 09:45:52 -06:00
t10-pi.c	t10-pi: Move opencoded contants to common header	2017-07-03 16:56:25 -06:00