INFO: task udevd:3116 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc6-syzkaller-g155a3c003e55 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:0     pid:3116  tgid:3116  ppid:1      task_flags:0x400140 flags:0x00000008
Call trace:
 __switch_to+0x208/0x4f4 arch/arm64/kernel/process.c:742 (T)
 context_switch kernel/sched/core.c:5397 [inline]
 __schedule+0xd34/0x3184 kernel/sched/core.c:6786
 __schedule_loop kernel/sched/core.c:6864 [inline]
 schedule+0xd0/0x344 kernel/sched/core.c:6879
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6936
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x5d8/0x9d8 kernel/locking/mutex.c:747
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:799
 bdev_open+0x2c4/0xa84 block/bdev.c:945
 blkdev_open+0x1d8/0x31c block/fops.c:676
 do_dentry_open+0x6f8/0x153c fs/open.c:964
 vfs_open+0x5c/0x2fc fs/open.c:1094
 do_open fs/namei.c:3896 [inline]
 path_openat+0x148c/0x24b0 fs/namei.c:4055
 do_filp_open+0x184/0x360 fs/namei.c:4082
 do_sys_openat2+0xe0/0x160 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __arm64_sys_openat+0x12c/0x1bc fs/open.c:1463
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x50/0x198 arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x10c/0x138 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
INFO: task syz-executor.0:3604 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc6-syzkaller-g155a3c003e55 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:3604  tgid:3602  ppid:3488   task_flags:0x400140 flags:0x00000019
Call trace:
 __switch_to+0x208/0x4f4 arch/arm64/kernel/process.c:742 (T)
 context_switch kernel/sched/core.c:5397 [inline]
 __schedule+0xd34/0x3184 kernel/sched/core.c:6786
 __schedule_loop kernel/sched/core.c:6864 [inline]
 schedule+0xd0/0x344 kernel/sched/core.c:6879
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6936
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0x5d8/0x9d8 kernel/locking/mutex.c:747
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:799
 bdev_release+0x104/0x510 block/bdev.c:1128
 blkdev_release+0x14/0x24 block/fops.c:684
 __fput+0x2c8/0x954 fs/file_table.c:465
 ____fput+0x14/0x20 fs/file_table.c:493
 task_work_run+0x128/0x210 kernel/task_work.c:227
 get_signal+0x174/0x1bac kernel/signal.c:2807
 do_signal+0x1f4/0x6a8 arch/arm64/kernel/signal.c:1615
 do_notify_resume+0x198/0x264 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+0x118/0x198 arch/arm64/kernel/entry-common.c:768
 el0t_64_sync_handler+0x10c/0x138 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/33:
 #0: ffff8000872c05e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x18/0x1c4 kernel/locking/lockdep.c:6764
4 locks held by klogd/3105:
1 lock held by udevd/3116:
 #0: ffff000014935358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2c4/0xa84 block/bdev.c:945
2 locks held by getty/3241:
 #0: ffff0000129b10a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80008d58b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e8/0xdc0 drivers/tty/n_tty.c:2222
1 lock held by syz-executor.0/3604:
 #0: ffff000014935358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x104/0x510 block/bdev.c:1128
1 lock held by udevd/3608:
 #0: ffff000014935358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2c4/0xa84 block/bdev.c:945
1 lock held by syz-executor.0/3715:
 #0: ffff000014935358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2c4/0xa84 block/bdev.c:945
1 lock held by syz-executor.0/3792:
 #0: ffff000014935358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x2c4/0xa84 block/bdev.c:945

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