INFO: task syz-executor.1:14521 blocked for more than 152 seconds.
      Not tainted 6.8.0-rc2-next-20240202-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:25112 pid:14521 tgid:14521 ppid:5102   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x17df/0x4a40 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6804 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6819
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_workqueue+0x730/0x1630 kernel/workqueue.c:3617
 drain_workqueue+0xc9/0x390 kernel/workqueue.c:3730
 destroy_workqueue+0xba/0xc40 kernel/workqueue.c:5319
 hci_release_dev+0x136/0x1670 net/bluetooth/hci_core.c:2807
 bt_host_release+0x83/0x90 net/bluetooth/hci_sysfs.c:94
 device_release+0x99/0x1c0
 kobject_cleanup lib/kobject.c:682 [inline]
 kobject_release lib/kobject.c:716 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f5/0x430 lib/kobject.c:733
 hci_uart_tty_close+0x1c1/0x290 drivers/bluetooth/hci_ldisc.c:552
 tty_ldisc_kill+0xa3/0x1a0 drivers/tty/tty_ldisc.c:607
 tty_ldisc_release+0x174/0x200 drivers/tty/tty_ldisc.c:775
 tty_release_struct+0x2b/0xe0 drivers/tty/tty_io.c:1696
 tty_release+0xd0c/0x12c0 drivers/tty/tty_io.c:1867