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Al Viro a861b9212a sg_write()/bsg_write() is not fit to be called under KERNEL_DS 
[ Upstream commit 128394eff3 ]

Both damn things interpret userland pointers embedded into the payload;
worse, they are actually traversing those.  Leaving aside the bad
API design, this is very much _not_ safe to call with KERNEL_DS.
Bail out early if that happens.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
History 2017-01-15 09:49:53 -05:00
..
partitions block: Replace strnicmp with strncasecmp 2014-09-27 16:48:55 -06:00
bio-integrity.c block: fix regression where bio_integrity_process uses wrong bio_vec iterator 2014-12-02 08:15:21 -07:00
bio.c block: Do a full clone when splitting discard bios 2016-10-07 10:37:27 -04:00
blk-cgroup.c blkcg: fix gendisk reference leak in blkg_conf_prep() 2015-08-27 13:25:46 -04:00
blk-cgroup.h blkcg: remove blkcg->id 2014-09-08 09:55:37 -06:00
blk-core.c blk-mq: Fix a use-after-free 2015-01-16 06:59:48 -08:00
blk-exec.c blk-mq: avoid infinite recursion with the FUA flag 2014-09-22 11:55:19 -06:00
blk-flush.c blk-mq: support per-distpatch_queue flush machinery 2014-09-25 15:22:45 -06:00
blk-integrity.c block: Don't merge requests if integrity flags differ 2014-09-27 09:14:57 -06:00
blk-ioc.c block: Substitute rcu_access_pointer() for rcu_dereference_raw() 2014-02-18 12:21:26 -08:00
blk-iopoll.c Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 12:57:53 -07:00
blk-lib.c block/blk-lib.c: make __blkdev_issue_zeroout static 2014-05-26 17:39:09 -06:00
blk-map.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00
blk-merge.c Fix bug in blk_rq_merge_ok 2015-04-22 23:32:31 -04:00
blk-mq-cpu.c blk-mq: add file comments and update copyright notices 2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c blk-mq: use 'nr_cpu_ids' as highest CPU ID count for hwq <-> cpu map 2015-01-16 06:59:48 -08:00
blk-mq-sysfs.c blk-mq: fix buffer overflow when reading sysfs file of 'pending' 2015-10-07 10:03:25 -04:00
blk-mq-tag.c blk-mq: fix double-free in error path 2015-03-06 14:52:56 -08:00
blk-mq-tag.h blk-mq: bitmap tag: fix races on shared ::wake_index fields 2014-06-17 22:12:35 -07:00
blk-mq.c blk-mq: fix CPU hotplug handling 2015-08-06 14:49:50 -04:00
blk-mq.h block: introduce blk_init_flush and its pair 2014-09-25 15:22:35 -06:00
blk-settings.c sd: Fix maximum I/O size for BLOCK_PC requests 2015-09-17 01:30:44 -04:00
blk-softirq.c block: fix regression with block enabled tagging 2014-04-09 21:54:06 -06:00
blk-sysfs.c blk-mq: Fix a use-after-free 2015-01-16 06:59:48 -08:00
blk-tag.c block: don't assume last put of shared tags is for the host 2014-07-08 12:25:28 +02:00
blk-throttle.c blk-throttle: check stats_cpu before reading it from sysfs 2015-03-06 14:53:05 -08:00
blk-timeout.c block: fix blk_abort_request on blk-mq 2014-09-22 12:00:08 -06:00
blk.h blk-mq: support per-distpatch_queue flush machinery 2014-09-25 15:22:45 -06:00
bounce.c mm: convert some level-less printks to pr_* 2014-06-06 16:08:18 -07:00
bsg-lib.c bsg: Remove unused function bsg_goose_queue() 2012-12-06 14:33:02 +01:00
bsg.c sg_write()/bsg_write() is not fit to be called under KERNEL_DS 2017-01-15 09:49:53 -05:00
cfq-iosched.c cfq-iosched: fix incorrect filing of rt async cfqq 2015-03-06 14:52:59 -08:00
cmdline-parser.c block: remove unrelated header files and export symbol 2014-01-21 20:18:26 -08:00
compat_ioctl.c block, bdi: an active gendisk always has a request_queue associated with it 2014-09-08 10:00:35 -06:00
deadline-iosched.c block: Stop abusing csd.list for fifo_time 2014-02-24 14:46:32 -08:00
elevator.c block: fix wrong error return in elevator_init() 2014-10-23 12:35:42 -06:00
genhd.c block: fix use-after-free in seq file 2016-08-22 12:23:29 -04:00
ioctl.c block, bdi: an active gendisk always has a request_queue associated with it 2014-09-08 10:00:35 -06:00
ioprio.c block: fix use-after-free in sys_ioprio_get() 2016-07-19 18:20:21 -04:00
Kconfig block: Add T10 Protection Information functions 2014-09-27 09:14:59 -06:00
Kconfig.iosched blkcg: make CONFIG_BLK_CGROUP bool 2012-03-06 21:27:21 +01:00
Makefile block: Add T10 Protection Information functions 2014-09-27 09:14:59 -06:00
noop-iosched.c elevator: Fix a race in elevator switching 2013-07-03 13:25:24 +02:00
partition-generic.c block: Fix dev_t minor allocation lifetime 2014-09-03 15:01:02 -06:00
scsi_ioctl.c scsi: Fix more error handling in SCSI_IOCTL_SEND_COMMAND 2014-11-10 15:41:47 -07:00
t10-pi.c block: Add T10 Protection Information functions 2014-09-27 09:14:59 -06:00