Davidlohr Bueso 727858a98a block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2) ... commit e6a59aac8a8713f335a37d762db0dbe80e7f6d38 upstream. do_each_pid_thread(PIDTYPE_PGID) can race with a concurrent change_pid(PIDTYPE_PGID) that can move the task from one hlist to another while iterating. Serialize ioprio_get to take the tasklist_lock in this case, just like it's set counterpart. Fixes: d69b78ba1d (ioprio: grab rcu_read_lock in sys_ioprio_{set,get}()) Acked-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Link: https://lore.kernel.org/r/20211210182058.43417-1-dave@stgolabs.net Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-14 14:49:02 +01:00
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partitions	…
Kconfig	…
Kconfig.iosched	…
Makefile	…
badblocks.c	…
bfq-cgroup.c	…
bfq-iosched.c	Revert "block, bfq: honor already-setup queue merges"	2021-10-06 15:42:34 +02:00
bfq-iosched.h	…
bfq-wf2q.c	…
bio-integrity.c	…
bio.c	block: only update parent bi_status when bio fail	2021-04-16 11:46:38 +02:00
blk-cgroup.c	blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd	2021-09-30 10:09:25 +02:00
blk-core.c	Revert "Revert "block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT""	2021-02-07 15:35:47 +01:00
blk-exec.c	…
blk-flush.c	…
blk-integrity.c	…
blk-ioc.c	…
blk-iocost.c	…
blk-iolatency.c	blk-iolatency: error out if blk_get_queue() failed in iolatency_set_limit()	2021-08-12 13:20:58 +02:00
blk-lib.c	…
blk-map.c	…
blk-merge.c	block: fix discard request merge	2021-07-14 16:53:19 +02:00
blk-mq-cpumap.c	…
blk-mq-debugfs-zoned.c	…
blk-mq-debugfs.c	…
blk-mq-debugfs.h	…
blk-mq-pci.c	…
blk-mq-rdma.c	…
blk-mq-sched.c	kyber: fix out of bounds access when preempted	2021-05-19 10:08:30 +02:00
blk-mq-sched.h	…
blk-mq-sysfs.c	blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue	2020-10-29 09:57:34 +01:00
blk-mq-tag.c	…
blk-mq-tag.h	…
blk-mq-virtio.c	…
blk-mq.c	block: remove inaccurate requeue check	2021-11-17 09:48:31 +01:00
blk-mq.h	…
blk-pm.c	scsi: block: Fix a race in the runtime power management code	2021-01-06 14:48:37 +01:00
blk-pm.h	…
blk-rq-qos.c	rq-qos: fix missed wake-ups in rq_qos_throttle try two	2021-07-19 08:53:16 +02:00
blk-rq-qos.h	block: fix race between adding/removing rq qos and normal IO	2021-07-14 16:53:18 +02:00
blk-settings.c	blk-settings: align max_sectors on "logical_block_size" boundary	2021-03-04 10:26:40 +01:00
blk-softirq.c	…
blk-stat.c	…
blk-stat.h	…
blk-sysfs.c	blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue	2020-10-29 09:57:34 +01:00
blk-throttle.c	blk-throttle: fix UAF by deleteing timer in blk_throtl_exit()	2021-09-26 14:07:13 +02:00
blk-timeout.c	…
blk-wbt.c	blk-wbt: make sure throttle is enabled properly	2021-07-14 16:53:25 +02:00
blk-wbt.h	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()	2021-07-14 16:53:25 +02:00
blk-zoned.c	blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN	2021-09-22 12:26:19 +02:00
blk.h	…
bounce.c	…
bsg-lib.c	…
bsg.c	scsi: bsg: Remove support for SCSI_IOCTL_SEND_COMMAND	2021-09-22 12:26:23 +02:00
cmdline-parser.c	…
compat_ioctl.c	…
elevator.c	…
genhd.c	block: Suppress uevent for hidden device when removed	2021-03-30 14:35:23 +02:00
ioctl.c	…
ioprio.c	block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)	2021-12-14 14:49:02 +01:00
kyber-iosched.c	kyber: fix out of bounds access when preempted	2021-05-19 10:08:30 +02:00
mq-deadline.c	kyber: fix out of bounds access when preempted	2021-05-19 10:08:30 +02:00
opal_proto.h	…
partition-generic.c	…
scsi_ioctl.c	…
sed-opal.c	…
t10-pi.c	…