INFO: task syz-executor.0:3563 blocked for more than 430 seconds.
      Not tainted 6.11.0-syzkaller-gbdf56c7580d2-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:3563  tgid:3560  ppid:3452   flags:0x0000000d
Call trace:
 __switch_to+0x204/0x3a0 arch/arm64/kernel/process.c:603
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xacc/0x2920 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xd0/0x304 kernel/sched/core.c:6621
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6678
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x4e8/0x840 kernel/locking/mutex.c:752
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:804
 bdev_release+0x104/0x510 block/bdev.c:1087
 blkdev_release+0x14/0x24 block/fops.c:639
 __fput+0x2c4/0x944 fs/file_table.c:431
 ____fput+0x14/0x20 fs/file_table.c:459
 task_work_run+0x128/0x210 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x1d4/0x25c arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0x100/0x180 arch/arm64/kernel/entry-common.c:713
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
2 locks held by kworker/u8:0/11:
1 lock held by khungtaskd/31:
 #0: ffff800086da4ce0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x44/0x2d4 kernel/locking/lockdep.c:6695
2 locks held by kworker/u8:4/165:
 #0: ffff00000d431148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6e4/0x18a8 kernel/workqueue.c:3204
 #1: ffff80008d577ce0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x708/0x18a8 kernel/workqueue.c:3204
2 locks held by getty/3213:
 #0: ffff000016d680a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80008ce3b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x93c/0xe9c drivers/tty/n_tty.c:2211
1 lock held by syz-executor.0/3563:
 #0: ffff000013e524c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x104/0x510 block/bdev.c:1087
1 lock held by udevd/3562:
 #0: ffff000013e524c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0x2c4/0xa84 block/bdev.c:904
1 lock held by syz-executor.0/3658:
 #0: ffff000013e524c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0x2c4/0xa84 block/bdev.c:904
1 lock held by syz-executor.0/3734:
 #0: ffff000013e524c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0x2c4/0xa84 block/bdev.c:904
1 lock held by syz-executor.0/3803:
 #0: ffff000013e524c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0x2c4/0xa84 block/bdev.c:904
2 locks held by modprobe/3871:

=============================================