INFO: task udevd:3508 blocked for more than 430 seconds.
      Not tainted 6.7.0-rc6-syzkaller-g5414aea7b750 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:0     pid:3508  tgid:3508  ppid:2954   flags:0x0000000d
Call trace:
 __switch_to+0x1c8/0x2a0 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xab0/0x2a8c kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xd0/0x24c kernel/sched/core.c:6778
 io_schedule+0xac/0x114 kernel/sched/core.c:8998
 folio_wait_bit_common+0x2ac/0x6dc mm/filemap.c:1273
 __folio_lock mm/filemap.c:1611 [inline]
 folio_lock include/linux/pagemap.h:1031 [inline]
 folio_lock include/linux/pagemap.h:1027 [inline]
 __filemap_get_folio+0x35c/0x798 mm/filemap.c:1864
 truncate_inode_pages_range+0x270/0xa7c mm/truncate.c:376
 truncate_inode_pages+0x14/0x20 mm/truncate.c:448
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x100/0x250 block/bdev.c:632
 blkdev_put_whole+0xd4/0xf0 block/bdev.c:663
 blkdev_put+0x284/0x6a8 block/bdev.c:944
 bdev_release+0x50/0x78 block/bdev.c:954
 blkdev_release+0x2c/0x4c block/fops.c:616
 __fput+0x1a4/0x92c fs/file_table.c:394
 ____fput+0x10/0x1c fs/file_table.c:422
 task_work_run+0x124/0x20c kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x754/0x1f54 kernel/exit.c:869
 do_group_exit+0xa4/0x208 kernel/exit.c:1018
 get_signal+0x199c/0x1ae0 kernel/signal.c:2904
 do_signal arch/arm64/kernel/signal.c:1249 [inline]
 do_notify_resume+0x47c/0x3208 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+0x11c/0x140 arch/arm64/kernel/entry-common.c:679
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffff800086737c40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x44/0x2d4 kernel/locking/lockdep.c:6608
2 locks held by getty/3073:
 #0: ffff0000129ea0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80008951b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x93c/0xe9c drivers/tty/n_tty.c:2201
1 lock held by udevd/3508:
 #0: ffff0000100224c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x94/0x6a8 block/bdev.c:930
1 lock held by syz-executor.0/3605:
 #0: ffff0000100224c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x3ec/0x810 block/bdev.c:788
1 lock held by syz-executor.0/3674:
 #0: ffff0000100224c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x3ec/0x810 block/bdev.c:788
1 lock held by syz-executor.0/3751:
 #0: ffff0000100224c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x3ec/0x810 block/bdev.c:788

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