Yu Kuai 7f77f3dab5 block, bfq: fix uaf for bfqq in bic_set_bfqq() ...

[ Upstream commit b600de2d7d3a16f9007fad1bdae82a3951a26af2 ]

After commit 64dc8c732f5c ("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: 64dc8c732f5c ("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>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-03-17 08:45:14 +01:00

..

partitions

block: unhash blkdev part inode when the part is deleted

2022-12-08 11:23:59 +01:00

badblocks.c

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bfq-cgroup.c

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

2023-03-17 08:45:14 +01:00

bfq-iosched.c

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

2023-03-17 08:45:14 +01:00

bfq-iosched.h

bfq: Get rid of __bio_blkcg() usage

2022-06-09 10:21:31 +02:00

bfq-wf2q.c

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bio-integrity.c

block: bio-integrity: Copy flags when bio_integrity_payload is cloned

2023-03-11 16:39:16 +01:00

bio.c

block: fix infinite loop for invalid zone append

2022-08-21 15:15:34 +02:00

blk-cgroup-rwstat.c

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blk-cgroup-rwstat.h

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blk-cgroup.c

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

2023-02-06 07:56:15 +01:00

blk-core.c

block: fix and cleanup bio_check_ro

2023-02-01 08:23:26 +01:00

blk-crypto-fallback.c

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blk-crypto-internal.h

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blk-crypto.c

blk-crypto: fix check for too-large dun_bytes

2021-09-15 09:50:30 +02:00

blk-exec.c

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blk-flush.c

block: Fix fsync always failed if once failed

2022-01-27 10:54:30 +01:00

blk-integrity.c

block: flush the integrity workqueue in blk_integrity_unregister

2021-09-30 10:11:06 +02:00

blk-ioc.c

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blk-iocost.c

blk-iocost: fix divide by 0 error in calc_lcoefs()

2023-03-11 16:39:48 +01:00

blk-iolatency.c

blk-iolatency: Fix inflight count imbalances and IO hangs on offline

2022-06-09 10:21:29 +02:00

blk-lib.c

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blk-map.c

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

2022-05-12 12:25:45 +02:00

blk-merge.c

block: remove the request_queue to argument request based tracepoints

2022-08-21 15:15:36 +02:00

blk-mq-cpumap.c

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blk-mq-debugfs-zoned.c

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blk-mq-debugfs.c

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

2022-08-21 15:15:35 +02:00

blk-mq-debugfs.h

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blk-mq-pci.c

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blk-mq-rdma.c

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blk-mq-sched.c

blk-mq: correct stale comment of .get_budget

2023-03-11 16:39:15 +01:00

blk-mq-sched.h

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blk-mq-sysfs.c

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

2023-01-14 10:16:19 +01:00

blk-mq-tag.c

blk-mq: avoid to iterate over stale request

2021-09-30 10:11:05 +02:00

blk-mq-tag.h

blk-mq: clear stale request in tags->rq[] before freeing one request pool

2021-07-14 16:55:58 +02:00

blk-mq-virtio.c

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blk-mq.c

blk-mq: avoid sleep in blk_mq_alloc_request_hctx

2023-03-11 16:39:15 +01:00

blk-mq.h

blk-mq: grab rq->refcount before calling ->fn in blk_mq_tagset_busy_iter

2021-07-14 16:55:58 +02:00

blk-pm.c

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

2022-01-27 10:54:08 +01:00

blk-pm.h

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blk-rq-qos.c

rq-qos: fix missed wake-ups in rq_qos_throttle try two

2021-07-19 09:45:00 +02:00

blk-rq-qos.h

block: fix race between adding/removing rq qos and normal IO

2021-07-14 16:56:00 +02:00

blk-settings.c

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blk-stat.c

…

blk-stat.h

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blk-sysfs.c

block: don't delete queue kobject before its children

2022-04-08 14:40:00 +02:00

blk-throttle.c

blk-throttle: prevent overflow while calculating wait time

2022-10-26 13:25:53 +02:00

blk-timeout.c

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blk-wbt.c

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

2022-10-30 09:41:19 +01:00

blk-wbt.h

blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()

2021-07-14 16:56:12 +02:00

blk-zoned.c

blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN

2021-09-18 13:40:06 +02:00

blk.h

block: bump max plugged deferred size from 16 to 32

2021-11-18 14:03:57 +01:00

bounce.c

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bsg-lib.c

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bsg.c

scsi: bsg: Remove support for SCSI_IOCTL_SEND_COMMAND

2021-09-18 13:40:11 +02:00

cmdline-parser.c

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elevator.c

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

2022-02-23 12:01:04 +01:00

genhd.c

block: Suppress uevent for hidden device when removed

2021-03-30 14:31:52 +02:00

ioctl.c

block/compat_ioctl: fix range check in BLKGETSIZE

2022-04-27 13:53:57 +02:00

ioprio.c

block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)

2021-12-14 11:32:40 +01:00

Kconfig

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Kconfig.iosched

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keyslot-manager.c

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kyber-iosched.c

kyber: fix out of bounds access when preempted

2021-05-19 10:13:13 +02:00

Makefile

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mq-deadline.c

block: return ELEVATOR_DISCARD_MERGE if possible

2021-09-15 09:50:28 +02:00

opal_proto.h

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scsi_ioctl.c

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sed-opal.c

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

2022-11-25 17:45:43 +01:00

t10-pi.c

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