Ming Lei dd8b0582e2 block: fix NULL pointer dereferenced within __blk_rq_map_sg ...

The block layer internal flush request may not have bio attached, so the
request iterator has to be initialized from valid req->bio, otherwise NULL
pointer dereferenced is triggered.

Cc: Christoph Hellwig <hch@lst.de>
Reported-and-tested-by: Cheyenne Wills <cheyenne.wills@gmail.com>
Fixes: b7175e24d6 ("block: add a dma mapping iterator")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20250217031626.461977-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2025-02-17 09:04:07 -07:00

..

partitions

partitions: mac: fix handling of bogus partition table

2025-02-14 08:38:28 -07:00

badblocks.c

badblocks: avoid checking invalid range in badblocks_check()

2023-12-23 18:38:08 -07:00

bdev.c

block/bdev: use helper for max block size check

2024-12-18 07:22:30 -07:00

bfq-cgroup.c

Revert "block, bfq: merge bfq_release_process_ref() into bfq_put_cooperator()"

2024-11-19 19:05:32 -07:00

bfq-iosched.c

Merge tag 'for-6.14/block-20250118' of git://git.kernel.dk/linux

2025-01-20 19:38:46 -08:00

bfq-iosched.h

block, bfq: remove bfq_log_bfqg()

2024-09-10 16:32:09 -06:00

bfq-wf2q.c

block, bfq: inject I/O to underutilized actuators

2023-01-29 15:18:33 -07:00

bio-integrity.c

block: add support to pass user meta buffer

2024-12-23 08:17:17 -07:00

bio.c

block: Don't trim an atomic write

2025-01-17 13:13:55 -07:00

blk-cgroup-fc-appid.c

block: Replace all non-returning strlcpy with strscpy

2023-06-01 09:13:31 -06:00

blk-cgroup-rwstat.c

blk-cgroup: use group allocation/free of per-cpu counters API

2024-04-03 09:10:17 -06:00

blk-cgroup-rwstat.h

blk-cgroup: rwstat: fix kernel-doc warnings in header file

2025-01-13 07:47:09 -07:00

blk-cgroup.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-cgroup.h

blk-cgroup: fix kernel-doc warnings in header file

2025-01-13 07:46:55 -07:00

blk-core.c

block: get rid of request queue ->sysfs_dir_lock

2025-01-29 07:16:47 -07:00

blk-crypto-fallback.c

block: Rework bio_split() return value

2024-11-11 08:35:46 -07:00

blk-crypto-internal.h

blk-crypto: remove blk_crypto_insert_cloned_request()

2023-03-16 09:35:09 -06:00

blk-crypto-profile.c

blk-crypto: use dynamic lock class for blk_crypto_profile::lock

2023-07-05 16:36:12 -06:00

blk-crypto-sysfs.c

block: make kobj_type structures constant

2023-02-09 09:38:16 -07:00

blk-crypto.c

blk-crypto: make blk_crypto_evict_key() more robust

2023-03-16 09:35:09 -06:00

blk-flush.c

Merge tag 'for-6.11/block-20240710' of git://git.kernel.dk/linux

2024-07-15 14:20:22 -07:00

blk-ia-ranges.c

block: get rid of request queue ->sysfs_dir_lock

2025-01-29 07:16:47 -07:00

blk-integrity.c

Merge tag 'for-6.14/io_uring-20250119' of git://git.kernel.dk/linux

2025-01-20 20:27:33 -08:00

blk-ioc.c

block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback

2024-10-22 08:16:40 -06:00

blk-iocost.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-iolatency.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-ioprio.c

blk-ioprio: remove per-disk structure

2024-07-28 16:47:51 -06:00

blk-ioprio.h

blk-ioprio: remove per-disk structure

2024-07-28 16:47:51 -06:00

blk-lib.c

block: fix detection of unsupported WRITE SAME in blkdev_issue_write_zeroes

2024-08-28 08:49:25 -06:00

blk-map.c

block: remove blk_rq_bio_prep

2025-01-04 15:27:35 -07:00

blk-merge.c

block: fix NULL pointer dereferenced within __blk_rq_map_sg

2025-02-17 09:04:07 -07:00

blk-mq-cpumap.c

blk-mq: create correct map for fallback case

2025-01-23 06:34:32 -07:00

blk-mq-debugfs.c

block: simplify tag allocation policy selection

2025-01-06 07:37:41 -07:00

blk-mq-debugfs.h

block: Replace zone_wlock debugfs entry with zone_wplugs entry

2024-04-17 08:44:03 -06:00

blk-mq-sched.c

block: remove BLK_MQ_F_SHOULD_MERGE

2024-12-23 08:17:23 -07:00

blk-mq-sched.h

blk-mq: make sure elevator callbacks aren't called for passthrough request

2023-05-18 19:42:54 -06:00

blk-mq-sysfs.c

block: fix nr_hw_queue update racing with disk addition/removal

2025-01-29 07:16:47 -07:00

blk-mq-tag.c

block: simplify tag allocation policy selection

2025-01-06 07:37:41 -07:00

blk-mq.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-mq.h

block: don't update BLK_FEAT_POLL in __blk_mq_update_nr_hw_queues

2025-01-10 07:29:23 -07:00

blk-pm.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-pm.h

block: Remove unused blk_pm_*() function definitions

2021-02-22 06:33:48 -07:00

blk-rq-qos.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-rq-qos.h

block: skip QUEUE_FLAG_STATS and rq-qos for passthrough io

2023-12-01 18:29:18 -07:00

blk-settings.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-stat.c

blk-throttle: remove CONFIG_BLK_DEV_THROTTLING_LOW

2024-05-09 09:44:55 -06:00

blk-stat.h

block: delete redundant function declaration

2024-05-27 13:58:06 -06:00

blk-sysfs.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-throttle.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk-throttle.h

blk-throttle: remove last_low_overflow_time

2024-09-10 16:31:41 -06:00

blk-timeout.c

block: blk-timeout: delete duplicated word

2020-07-31 16:29:47 -06:00

blk-wbt.c

blk-wbt: don't throttle swap writes in direct reclaim

2024-07-01 06:51:53 -06:00

blk-wbt.h

blk-wbt: remove the separate write cache tracking

2023-12-26 09:28:10 -07:00

blk-zoned.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

blk.h

block: limit disk max sectors to (LLONG_MAX >> 9)

2025-01-15 15:46:56 -07:00

bounce.c

block: split integrity support out of bio.h

2024-07-03 10:21:15 -06:00

bsg-lib.c

block: remove BLK_MQ_F_NO_SCHED

2025-01-06 07:37:41 -07:00

bsg.c

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2023-06-30 11:57:07 -07:00

disk-events.c

block: move bdev_mark_dead out of disk_check_media_change

2023-10-28 13:29:23 +02:00

early-lookup.c

wrapper for access to ->bd_partno

2024-05-02 17:48:09 -04:00

elevator.c

block: force noio scope in blk_mq_freeze_queue

2025-01-31 07:20:08 -07:00

elevator.h

elevator: Enable const sysfs attributes

2025-01-02 13:20:29 -07:00

fops.c

block: don't revert iter for -EIOCBQUEUED

2025-01-23 06:18:41 -07:00

genhd.c

block: limit disk max sectors to (LLONG_MAX >> 9)

2025-01-15 15:46:56 -07:00

holder.c

block: fix deadlock between bd_link_disk_holder and partition scan

2024-02-23 07:44:19 -07:00

ioctl.c

block: implement async io_uring discard cmd

2024-09-11 10:45:28 -06:00

ioprio.c

block: move __get_task_ioprio() into header file

2024-01-08 12:27:39 -07:00

Kconfig

block: remove the blk_integrity_profile structure

2024-06-14 10:20:06 -06:00

Kconfig.iosched

block: Default to use cgroup support for BFQ

2023-01-30 09:42:42 -07:00

kyber-iosched.c

kyber: constify sysfs attributes

2025-01-02 13:20:29 -07:00

Makefile

blk-mq: remove unused queue mapping helpers

2024-12-23 08:17:23 -07:00

mq-deadline.c

block: mq-deadline: Constify sysfs attributes

2025-01-02 13:20:29 -07:00

opal_proto.h

block: sed-opal: handle empty atoms when parsing response

2024-02-16 15:52:45 -07:00

sed-opal.c

block: sed-opal: add ioctl IOC_OPAL_SET_SID_PW

2024-10-22 08:16:40 -06:00

t10-pi.c

move asm/unaligned.h to linux/unaligned.h

2024-10-02 17:23:23 -04:00