Bluetooth: hci4: command 0x0406 tx timeout
INFO: task syz-executor.3:215467 blocked for more than 143 seconds.
      Not tainted 5.10.220 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:27192 pid:215467 ppid:   291 flags:0x00084004
Call Trace:
 context_switch kernel/sched/core.c:3800 [inline]
 __schedule+0x824/0x1ea0 kernel/sched/core.c:4548
 schedule+0xcb/0x270 kernel/sched/core.c:4626
 perf_event_free_task+0x4a1/0x620 kernel/events/core.c:12717
 copy_process+0x2f02/0x7800 kernel/fork.c:2387
 create_io_thread+0xb6/0xf0 kernel/fork.c:2454
 create_worker_cont+0xe4/0x550 io_uring/io-wq.c:764
 task_work_run+0xe2/0x1a0 kernel/task_work.c:161
 tracehook_notify_signal include/linux/tracehook.h:211 [inline]
 handle_signal_work kernel/entry/common.c:143 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
 exit_to_user_mode_prepare+0x17c/0x190 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274
 entry_SYSCALL_64_after_hwframe+0x67/0xd1
RIP: 0033:0x7f173e514b19
RSP: 002b:00007f173ba8a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000114 RBX: 00007f173e627f60 RCX: 00007f173e514b19
RDX: 0000000000000000 RSI: 0000000000002ba7 RDI: 0000000000000003
RBP: 00007f173e56ef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcacf5eb2f R14: 00007f173ba8a300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/22:
 #0: ffffffff84ff8c20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6391
1 lock held by in:imklog/178:
 #0: ffff88800d030870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xf1/0x190 fs/file.c:997
2 locks held by rs:main Q:Reg/179:
 #0: ffff88800d031c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xf1/0x190 fs/file.c:997
 #1: ffff8880094b8438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x260 fs/read_write.c:658

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