INFO: task udevd:6007 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc4-syzkaller-g3bb1a3e1674b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:0     pid:6007  ppid:5589   flags:0x0000000d
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
 io_schedule+0x8c/0x12c kernel/sched/core.c:8979
 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1301
 __folio_lock mm/filemap.c:1664 [inline]
 folio_lock include/linux/pagemap.h:955 [inline]
 __filemap_get_folio+0x1e4/0x964 mm/filemap.c:1931
 truncate_inode_pages_range+0x444/0xf74 mm/truncate.c:377
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:449
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x134/0x280 block/bdev.c:596
 blkdev_put_whole block/bdev.c:627 [inline]
 blkdev_put+0x464/0x6e0 block/bdev.c:887
 blkdev_close+0x58/0x94 block/fops.c:507
 __fput+0x30c/0x7bc fs/file_table.c:321
 ____fput+0x20/0x30 fs/file_table.c:349
 task_work_run+0x230/0x2e0 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x63c/0x1f58 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1021
 get_signal+0x14b0/0x159c kernel/signal.c:2874
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x3cc/0x3c90 arch/arm64/kernel/signal.c:1302
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_svc+0x94/0x160 arch/arm64/kernel/entry-common.c:648
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
INFO: task syz-executor262:6108 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc4-syzkaller-g3bb1a3e1674b #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor262 state:D stack:0     pid:6108  ppid:6003   flags:0x00000001
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_preempt_disabled+0x18/0x2c kernel/sched/core.c:6804
 __mutex_lock_common+0xbd8/0x21a0 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
 blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:747
 blkdev_open+0x10c/0x290 block/fops.c:493
 do_dentry_open+0x724/0xf90 fs/open.c:920
 vfs_open+0x7c/0x90 fs/open.c:1051
 do_open fs/namei.c:3636 [inline]
 path_openat+0x1f2c/0x27f8 fs/namei.c:3791
 do_filp_open+0x1bc/0x3cc fs/namei.c:3818
 do_sys_openat2+0x128/0x3d8 fs/open.c:1356
 do_sys_open fs/open.c:1372 [inline]
 __do_sys_openat fs/open.c:1388 [inline]
 __se_sys_openat fs/open.c:1383 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1383
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffff80008e0915d0 (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: ffff80008e091990 (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: ffff80008e091400 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:326
2 locks held by getty/5729:
 #0: ffff0000d4d9b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800092ea62f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210 drivers/tty/n_tty.c:2176
1 lock held by udevd/6007:
 #0: ffff0000ccc094c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xec/0x6e0 block/bdev.c:845
1 lock held by syz-executor262/6108:
 #0: ffff0000ccc094c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x8f8 block/bdev.c:747

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