Christoph Hellwig 692d062655 block: fix locking in bdev_del_partition ...

[ Upstream commit 08fc1ab6d7 ]

We need to hold the whole device bd_mutex to protect against
other thread concurrently deleting out partition before we get
to it, and thus causing a use after free.

Fixes: cddae808ae ("block: pass a hd_struct to delete_partition")
Reported-by: syzbot+6448f3c229bc52b82f69@syzkaller.appspotmail.com
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2020-09-09 19:14:20 +02:00

..

partitions

block: fix locking in bdev_del_partition

2020-09-09 19:14:20 +02:00

badblocks.c

block: switch all files cleared marked as GPLv2 to SPDX tags

2019-04-30 16:11:57 -06:00

bfq-cgroup.c

bfq: fix blkio cgroup leakage v4

2020-09-03 11:29:27 +02:00

bfq-iosched.c

blk-mq: remove the bio argument to ->prepare_request

2020-05-29 10:23:24 -06:00

bfq-iosched.h

bfq: fix blkio cgroup leakage v4

2020-09-03 11:29:27 +02:00

bfq-wf2q.c

bfq: fix blkio cgroup leakage v4

2020-09-03 11:29:27 +02:00

bio-integrity.c

block: make function __bio_integrity_free() static

2020-07-02 12:38:18 -06:00

bio.c

block: Fix page_is_mergeable() for compound pages

2020-09-03 11:29:27 +02:00

blk-cgroup-rwstat.c

blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT

2019-11-07 12:28:13 -07:00

blk-cgroup-rwstat.h

blk-cgroup: separate out blkg_rwstat under CONFIG_BLK_CGROUP_RWSTAT

2019-11-07 12:28:13 -07:00

blk-cgroup.c

blkcg: fix memleak for iolatency

2020-09-03 11:29:27 +02:00

blk-core.c

Merge tag 'for-5.8/block-2020-06-01' of git://git.kernel.dk/linux-block

2020-06-02 15:29:19 -07:00

blk-crypto-fallback.c

block: blk-crypto-fallback: remove redundant initialization of variable err

2020-05-27 05:41:59 -06:00

blk-crypto-internal.h

block: blk-crypto-fallback for Inline Encryption

2020-05-14 09:48:03 -06:00

blk-crypto.c

block: blk-crypto-fallback for Inline Encryption

2020-05-14 09:48:03 -06:00

blk-exec.c

block: add a blk_account_io_merge_bio helper

2020-05-27 05:21:23 -06:00

blk-flush.c

block: remove the disk and queue NULL checks in blkdev_issue_flush

2020-05-22 08:45:59 -06:00

blk-integrity.c

block: Make blk-integrity preclude hardware inline encryption

2020-05-14 09:48:03 -06:00

blk-ioc.c

block: Fix use-after-free issue accessing struct io_cq

2020-03-12 07:07:38 -06:00

blk-iocost.c

iocost: Fix check condition of iocg abs_vdebt

2020-08-19 08:26:11 +02:00

blk-iolatency.c

blkcg: s/RQ_QOS_CGROUP/RQ_QOS_LATENCY/

2019-08-28 21:17:08 -06:00

blk-lib.c

…

blk-map.c

block: Inline encryption support for blk-mq

2020-05-14 09:47:53 -06:00

blk-merge.c

block: fix get_max_io_size()

2020-09-03 11:29:38 +02:00

blk-mq-cpumap.c

blk-mq: balance mapping between present CPUs and queues

2019-08-04 21:43:12 -06:00

blk-mq-debugfs-zoned.c

block: Cleanup license notice

2019-01-17 21:21:40 -07:00

blk-mq-debugfs.c

blk-mq-debugfs: update blk_queue_flag_name[] accordingly for new flags

2020-06-29 07:45:09 -06:00

blk-mq-debugfs.h

blk-mq: no need to check return value of debugfs_create functions

2019-06-13 03:00:30 -06:00

blk-mq-pci.c

block: Fix blk_mq_*_map_queues() kernel-doc headers

2019-05-31 15:12:34 -06:00

blk-mq-rdma.c

block: Fix blk_mq_*_map_queues() kernel-doc headers

2019-05-31 15:12:34 -06:00

blk-mq-sched.c

blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART

2020-09-03 11:29:39 +02:00

blk-mq-sched.h

block: blk-mq: Remove blk_mq_sched_started_request and started_request

2019-07-23 07:25:09 -06:00

blk-mq-sysfs.c

blk-mq: make sure that line break can be printed

2019-11-04 07:14:10 -07:00

blk-mq-tag.c

blk-mq: Remove redundant 'return' statement

2020-06-15 08:34:43 -06:00

blk-mq-tag.h

blk-mq: split out a __blk_mq_get_driver_tag helper

2020-06-07 08:56:50 -06:00

blk-mq-virtio.c

blk-mq: Fix typo in comment

2020-03-17 20:55:21 +01:00

blk-mq.c

blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART

2020-09-03 11:29:39 +02:00

blk-mq.h

blk-mq: split out a __blk_mq_get_driver_tag helper

2020-06-07 08:56:50 -06:00

blk-pm.c

block: bypass blk_set_runtime_active for uninitialized q->dev

2019-09-12 07:11:56 -06:00

blk-pm.h

…

blk-rq-qos.c

blk-wbt: fix performance regression in wbt scale_up/scale_down

2019-10-06 09:26:41 -06:00

blk-rq-qos.h

blk-rq-qos: fix first node deletion of rq_qos_del()

2019-10-15 10:13:13 -06:00

blk-settings.c

block: Introduce REQ_OP_ZONE_APPEND

2020-05-12 20:36:28 -06:00

blk-softirq.c

block: Don't disable interrupts in trigger_softirq()

2019-11-18 07:29:22 -07:00

blk-stat.c

blk-stat: Optimise blk_stat_add()

2019-10-07 21:19:10 -06:00

blk-stat.h

…

blk-sysfs.c

block: Introduce REQ_OP_ZONE_APPEND

2020-05-12 20:36:28 -06:00

blk-throttle.c

blk-throttle: remove tg_drain_bios

2020-05-29 16:30:39 -06:00

blk-timeout.c

block: add SPDX tags to block layer files missing licensing information

2019-04-30 16:12:03 -06:00

blk-wbt.c

blk-wbt: rename __wbt_update_limits to wbt_update_limits

2020-05-29 16:30:39 -06:00

blk-wbt.h

blk-wbt: remove wbt_update_limits

2020-05-29 16:30:39 -06:00

blk-zoned.c

block: don't do revalidate zones on invalid devices

2020-08-19 08:26:14 +02:00

blk.h

block: nr_sects_write(): Disable preemption on seqcount write

2020-06-04 21:22:28 -06:00

bounce.c

block: Inline encryption support for blk-mq

2020-05-14 09:47:53 -06:00

bsg-lib.c

block: Fix the type of 'sts' in bsg_queue_rq()

2019-12-20 11:52:01 -07:00

bsg.c

compat_ioctl: bsg: add handler

2020-01-03 09:33:21 +01:00

cmdline-parser.c

…

elevator.c

Merge branch 'for-linus' into for-5.5/block

2019-11-07 12:27:19 -07:00

genhd.c

block: remove rcu_read_lock() from part_stat_lock()

2020-05-27 05:21:23 -06:00

ioctl.c

block: Fix type of first compat_put_{,u}long() argument

2020-05-19 09:40:29 -06:00

ioprio.c

docs: block: convert to ReST

2019-07-15 09:20:27 -03:00

Kconfig

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-14 01:57:21 +09:00

Kconfig.iosched

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-14 01:57:21 +09:00

keyslot-manager.c

block/keyslot-manager: use kvfree_sensitive()

2020-06-29 13:24:05 -06:00

kyber-iosched.c

blk-mq: remove the bio argument to ->prepare_request

2020-05-29 10:23:24 -06:00

Makefile

block: blk-crypto-fallback for Inline Encryption

2020-05-14 09:48:03 -06:00

mq-deadline.c

blk-mq: remove the bio argument to ->prepare_request

2020-05-29 10:23:24 -06:00

opal_proto.h

block: sed-opal: Change the check condition for regular session validity

2020-03-12 08:00:10 -06:00

scsi_ioctl.c

scsi: core: Allow non-root users to perform ZBC commands

2020-03-16 18:26:31 -04:00

sed-opal.c

block: sed-opal: Change the check condition for regular session validity

2020-03-12 08:00:10 -06:00

t10-pi.c

block: Allow t10-pi to be modular

2020-01-06 20:59:04 -07:00