Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Jan Kara 5f62b21b7c block: fix bio_clone_blkg_association() to associate with proper blkcg_gq ... commit 22b106e5355d6e7a9c3b5cb5ed4ef22ae585ea94 upstream. Commit d92c370a16cb ("block: really clone the block cgroup in bio_clone_blkg_association") changed bio_clone_blkg_association() to just clone bio->bi_blkg reference from source to destination bio. This is however wrong if the source and destination bios are against different block devices because struct blkcg_gq is different for each bdev-blkcg pair. This will result in IOs being accounted (and throttled as a result) multiple times against the same device (src bdev) while throttling of the other device (dst bdev) is ignored. In case of BFQ the inconsistency can even result in crashes in bfq_bic_update_cgroup(). Fix the problem by looking up correct blkcg_gq for the cloned bio. Reported-by: Logan Gunthorpe <logang@deltatee.com> Reported-and-tested-by: Donald Buczek <buczek@molgen.mpg.de> Fixes: d92c370a16cb ("block: really clone the block cgroup in bio_clone_blkg_association") CC: stable@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220602081242.7731-1-jack@suse.cz Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-14 18:11:50 +02:00
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partitions
badblocks.c
bfq-cgroup.c	bfq: Make sure bfqg for which we are queueing requests is online	2022-06-14 18:11:50 +02:00
bfq-iosched.c	bfq: Get rid of __bio_blkcg() usage	2022-06-14 18:11:50 +02:00
bfq-iosched.h	bfq: Get rid of __bio_blkcg() usage	2022-06-14 18:11:50 +02:00
bfq-wf2q.c	bfq: fix blkio cgroup leakage v4	2020-09-03 11:26:54 +02:00
bio-integrity.c	block: bio-integrity: Advance seed correctly for larger interval sizes	2022-02-08 18:24:28 +01:00
bio.c	block: fix bio_clone_blkg_association() to associate with proper blkcg_gq	2022-06-14 18:11:50 +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	block: Fix fsync always failed if once failed	2022-03-08 19:07:47 +01:00
blk-integrity.c
blk-ioc.c	block: Fix use-after-free issue accessing struct io_cq	2020-04-17 10:50:04 +02:00
blk-iocost.c	blk-iocost: ioc_pd_free() shouldn't assume irq disabled	2020-09-09 19:12:35 +02:00
blk-iolatency.c	blk-iolatency: Fix inflight count imbalances and IO hangs on offline	2022-06-14 18:11:49 +02:00
blk-lib.c
blk-map.c
blk-merge.c	block: return ELEVATOR_DISCARD_MERGE if possible	2022-05-25 09:14:38 +02:00
blk-mq-cpumap.c
blk-mq-debugfs-zoned.c
blk-mq-debugfs.c	blk-mq-debugfs: update blk_queue_flag_name[] accordingly for new flags	2020-07-22 09:32:52 +02:00
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	block: only call sched requeue_request() for scheduled requests	2020-09-23 12:40:37 +02:00
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	block: don't delete queue kobject before its children	2022-04-15 14:18:05 +02:00
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	block/compat_ioctl: fix range check in BLKGETSIZE	2022-04-27 13:50:50 +02:00
elevator.c	block: return ELEVATOR_DISCARD_MERGE if possible	2022-05-25 09:14:38 +02:00
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
Kconfig
Kconfig.iosched
kyber-iosched.c	kyber: fix out of bounds access when preempted	2021-05-19 10:08:30 +02:00
Makefile
mq-deadline.c	block: return ELEVATOR_DISCARD_MERGE if possible	2022-05-25 09:14:38 +02:00
opal_proto.h
partition-generic.c
scsi_ioctl.c
sed-opal.c
t10-pi.c