INFO: task kworker/u4:5:4269 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc2-syzkaller-gf1fcbaa18b28 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:5    state:D stack:0     pid:4269  ppid:2      flags:0x00000008
Workqueue: events_unbound io_ring_exit_work
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1368/0x23b8 kernel/sched/core.c:6669
 schedule+0xc4/0x170 kernel/sched/core.c:6745
 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2143
 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:85
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common kernel/sched/completion.c:117 [inline]
 wait_for_completion+0x48/0x60 kernel/sched/completion.c:138
 io_ring_exit_work+0x600/0x738 io_uring/io_uring.c:3077
 process_one_work+0x788/0x12d4 kernel/workqueue.c:2405
 worker_thread+0x8e0/0xfe8 kernel/workqueue.c:2552
 kthread+0x288/0x310 kernel/kthread.c:379
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Showing all locks held in the system:
3 locks held by kworker/u4:0/10:
1 lock held by rcu_tasks_kthre/13:
 #0: ffff8000160810d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
 #0: ffff800016081490 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/29:
 #0: ffff800016080f00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326
2 locks held by kworker/u4:5/4269:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x664/0x12d4 kernel/workqueue.c:2378
 #1: ffff800021a97c20 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x6a8/0x12d4 kernel/workqueue.c:2380
2 locks held by getty/5727:
 #0: ffff0000d507d098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80001adf02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176
3 locks held by kworker/0:8/6141:
1 lock held by udevd/12063:
 #0: ffff0000cd528b60 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_simple_ioctl drivers/block/loop.c:1511 [inline]
 #0: ffff0000cd528b60 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_ioctl+0x45c/0x1d08 drivers/block/loop.c:1587
3 locks held by udevd/12351:
 #0: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline]
 #0: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline]
 #0: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1653 [inline]
 #0: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2d8/0x23b8 kernel/sched/core.c:6586
 #1: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:558 [inline]
 #1: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1366 [inline]
 #1: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1653 [inline]
 #1: ffff0001b425bb18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2d8/0x23b8 kernel/sched/core.c:6586
 #2: fffffbffeff2ce48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x180/0x618 kernel/sched/psi.c:946
1 lock held by syz-executor.4/20432:
 #0: ffff0000cd528b60 (&lo->lo_mutex){+.+.}-{3:3}, at: loop_set_status+0x40/0x804 drivers/block/loop.c:1269
2 locks held by syz-executor.3/20438:

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