INFO: task syz.0.19:7432 blocked for more than 143 seconds.
      Not tainted 6.14.0-syzkaller-00082-gd6b13dbd03b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.19        state:D stack:0     pid:7432  tgid:7431  ppid:7137   task_flags:0x400140 flags:0x0000000d
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0x1360/0x257c kernel/sched/core.c:6765
 __schedule_loop kernel/sched/core.c:6842 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6857
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6914
 __mutex_lock_common+0xd30/0x24b8 kernel/locking/mutex.c:662
 __mutex_lock kernel/locking/mutex.c:730 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:782
 bdev_release+0x168/0x644 block/bdev.c:1086
 blkdev_release+0x20/0x34 block/fops.c:660
 __fput+0x340/0x760 fs/file_table.c:464
 ____fput+0x20/0x30 fs/file_table.c:492
 task_work_run+0x230/0x2e0 kernel/task_work.c:227
 get_signal+0x1324/0x1500 kernel/signal.c:2809
 do_signal+0x22c/0x3a04 arch/arm64/kernel/signal.c:1658
 do_notify_resume+0x74/0x1f4 arch/arm64/kernel/entry-common.c:148
 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+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008ff32620 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by getty/6221:
 #0: ffff0000d7b600a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009bd852f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
1 lock held by udevd/7376:
 #0: ffff0000cb1234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by udevd/7377:
 #0: ffff0000caae34c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by udevd/7378:
 #0: ffff0000ca78e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.0.19/7432:
 #0: ffff0000caae34c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by syz.1.21/7450:
 #0: ffff0000ca78e4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by udevd/7454:
 #0: ffff0000cabfa4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.2.26/7476:
 #0: ffff0000cabfa4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by udevd/7480:
 #0: ffff0000caae74c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.3.32/7504:
 #0: ffff0000caae74c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by udevd/7533:
 #0: ffff0000cb07b4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.4.52/7571:
 #0: ffff0000cb07b4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by udevd/7581:
 #0: ffff0000cb07f4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.5.57/7612:
 #0: ffff0000cb07f4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by syz.6.58/7638:
 #0: ffff0000cb1234c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086
1 lock held by udevd/7642:
 #0: ffff0000cabfe4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 block/bdev.c:903
1 lock held by syz.7.60/7667:
 #0: ffff0000cabfe4c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 block/bdev.c:1086

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