Yu Kuai 511c922c5b block, bfq: fix uaf for bfqq in bic_set_bfqq() ...

[ Upstream commit b600de2d7d ]

After commit 64dc8c732f ("block, bfq: fix possible uaf for 'bfqq->bic'"),
bic->bfqq will be accessed in bic_set_bfqq(), however, in some context
bic->bfqq will be freed, and bic_set_bfqq() is called with the freed
bic->bfqq.

Fix the problem by always freeing bfqq after bic_set_bfqq().

Fixes: 64dc8c732f ("block, bfq: fix possible uaf for 'bfqq->bic'")
Reported-and-tested-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230130014136.591038-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-02-09 11:26:36 +01:00

..

partitions

block: drop unused includes in <linux/genhd.h>

2022-03-16 14:23:46 +01:00

badblocks.c

…

bdev.c

block: simplify the block device syncing code

2022-04-27 14:38:50 +02:00

bfq-cgroup.c

block, bfq: fix uaf for bfqq in bic_set_bfqq()

2023-02-09 11:26:36 +01:00

bfq-iosched.c

block, bfq: fix uaf for bfqq in bic_set_bfqq()

2023-02-09 11:26:36 +01:00

bfq-iosched.h

bfq: Get rid of __bio_blkcg() usage

2022-06-09 10:23:19 +02:00

bfq-wf2q.c

block/bfq_wf2q: correct weight to ioprio

2022-04-08 14:23:55 +02:00

bio-integrity.c

block: bio-integrity: Advance seed correctly for larger interval sizes

2022-02-08 18:34:05 +01:00

bio.c

block: ensure iov_iter advances for added pages

2022-08-17 14:24:01 +02:00

blk-cgroup-rwstat.c

…

blk-cgroup-rwstat.h

…

blk-cgroup.c

blk-cgroup: fix missing pd_online_fn() while activating policy

2023-02-06 07:59:00 +01:00

blk-core.c

block: fix and cleanup bio_check_ro

2023-02-01 08:27:30 +01:00

blk-crypto-fallback.c

…

blk-crypto-internal.h

…

blk-crypto.c

…

blk-exec.c

…

blk-flush.c

block: Fix fsync always failed if once failed

2022-01-27 11:05:25 +01:00

blk-integrity.c

…

blk-ioc.c

block: fix default IO priority handling again

2022-08-11 13:07:50 +02:00

blk-iocost.c

block: don't allow the same type rq_qos add more than once

2022-08-17 14:24:24 +02:00

blk-iolatency.c

block: don't allow the same type rq_qos add more than once

2022-08-17 14:24:24 +02:00

blk-ioprio.c

…

blk-ioprio.h

…

blk-lib.c

…

blk-map.c

block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern

2022-03-08 19:12:31 +01:00

blk-merge.c

block: handle bio_split_to_limits() NULL return

2023-01-18 11:48:58 +01:00

blk-mq-cpumap.c

…

blk-mq-debugfs-zoned.c

…

blk-mq-debugfs.c

blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created

2022-08-17 14:23:12 +02:00

blk-mq-debugfs.h

…

blk-mq-pci.c

…

blk-mq-rdma.c

…

blk-mq-sched.c

block: limit request dispatch loop duration

2022-04-08 14:22:59 +02:00

blk-mq-sched.h

…

blk-mq-sysfs.c

blk-mq: fix possible memleak when register 'hctx' failed

2022-12-31 13:14:43 +01:00

blk-mq-tag.c

…

blk-mq-tag.h

…

blk-mq-virtio.c

…

blk-mq.c

block: handle bio_split_to_limits() NULL return

2023-01-18 11:48:58 +01:00

blk-mq.h

blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release()

2021-12-01 09:04:56 +01:00

blk-pm.c

scsi: block: pm: Always set request queue runtime active in blk_post_runtime_resume()

2022-01-27 11:04:15 +01:00

blk-pm.h

…

blk-rq-qos.c

…

blk-rq-qos.h

block: don't allow the same type rq_qos add more than once

2022-08-17 14:24:24 +02:00

blk-settings.c

…

blk-stat.c

…

blk-stat.h

…

blk-sysfs.c

block: don't delete queue kobject before its children

2022-04-08 14:23:07 +02:00

blk-throttle.c

blk-throttle: prevent overflow while calculating wait time

2022-10-26 12:35:47 +02:00

blk-timeout.c

…

blk-wbt.c

blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()

2022-10-26 12:35:54 +02:00

blk-wbt.h

…

blk-zoned.c

…

blk.h

…

bounce.c

…

bsg-lib.c

…

bsg.c

…

disk-events.c

…

elevator.c

block/wbt: fix negative inflight counter when remove scsi device

2022-02-23 12:03:15 +01:00

fops.c

…

genhd.c

block: clear ->slave_dir when dropping the main slave_dir reference

2022-12-31 13:14:10 +01:00

holder.c

block: drop unused includes in <linux/genhd.h>

2022-03-16 14:23:46 +01:00

ioctl.c

block/compat_ioctl: fix range check in BLKGETSIZE

2022-04-27 14:39:02 +02:00

ioprio.c

block: fix default IO priority handling again

2022-08-11 13:07:50 +02:00

Kconfig

…

Kconfig.iosched

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keyslot-manager.c

…

kyber-iosched.c

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Makefile

block: move CONFIG_BLOCK guard to top Makefile

2022-12-14 11:37:30 +01:00

mq-deadline.c

block: mq-deadline: Rename deadline_is_seq_writes()

2023-01-24 07:22:49 +01:00

opal_proto.h

…

sed-opal.c

block: sed-opal: kmalloc the cmd/resp buffers

2022-11-26 09:24:35 +01:00

t10-pi.c

…