==================================================================
BUG: KCSAN: data-race in blk_mq_request_bypass_insert / blk_mq_run_hw_queue

write to 0xffff888102802410 of 8 bytes by task 72 on cpu 1:
 __list_add include/linux/list.h:72 [inline]
 list_add include/linux/list.h:88 [inline]
 blk_mq_request_bypass_insert+0x6a/0x130 block/blk-mq.c:2349
 blk_mq_sched_insert_request+0xfd/0x220 block/blk-mq-sched.c:434
 blk_mq_requeue_work+0x38b/0x3f0 block/blk-mq.c:1310
 process_one_work+0x3f6/0x960 kernel/workqueue.c:2307
 worker_thread+0x616/0xa70 kernel/workqueue.c:2454
 kthread+0x1bf/0x1e0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

read to 0xffff888102802410 of 8 bytes by task 19478 on cpu 0:
 list_empty_careful include/linux/list.h:329 [inline]
 blk_mq_hctx_has_pending block/blk-mq.c:100 [inline]
 blk_mq_run_hw_queue+0x19b/0x310 block/blk-mq.c:2095
 blk_mq_sched_insert_requests+0x1cc/0x2a0 block/blk-mq-sched.c:486
 blk_mq_flush_plug_list+0x5c3/0x6c0 block/blk-mq.c:2632
 blk_add_rq_to_plug+0x13f/0x3a0 block/blk-mq.c:2694
 blk_mq_submit_bio+0x8d1/0xec0 block/blk-mq.c:2835
 __submit_bio+0x151/0x350 block/blk-core.c:800
 __submit_bio_noacct_mq block/blk-core.c:875 [inline]
 submit_bio_noacct+0x475/0x4e0 block/blk-core.c:901
 submit_bio+0x10c/0x180
 iomap_dio_submit_bio fs/iomap/direct-io.c:66 [inline]
 iomap_dio_bio_iter+0x9ed/0xc70 fs/iomap/direct-io.c:351
 __iomap_dio_rw+0x8d6/0x10a0 fs/iomap/direct-io.c:590
 iomap_dio_rw+0x38/0x80 fs/iomap/direct-io.c:680
 ext4_dio_write_iter fs/ext4/file.c:564 [inline]
 ext4_file_write_iter+0x7d5/0xda0 fs/ext4/file.c:675
 call_write_iter include/linux/fs.h:2074 [inline]
 new_sync_write fs/read_write.c:503 [inline]
 vfs_write+0x7f5/0x950 fs/read_write.c:590
 ksys_write+0xd9/0x190 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:652
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffff888102802408 -> 0xffff888102641848

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 19478 Comm: syz-executor.0 Not tainted 5.17.0-rc5-syzkaller-00306-g2293be58d6a1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
netdevsim netdevsim0 eth3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth0: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 eth3: set [1, 0] type 2 family 0 port 6081 - 0