Bluetooth: hci5: command 0x0406 tx timeout
NOHZ: local_softirq_pending 08
NOHZ: local_softirq_pending 08
NOHZ: local_softirq_pending 08
NOHZ: local_softirq_pending 08
INFO: task syz-executor.0:10173 blocked for more than 140 seconds.
      Not tainted 4.18.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D28520 10173   8568 0x00080004
Call Trace:
 context_switch kernel/sched/core.c:2853 [inline]
 __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501
 schedule+0x7f/0x1b0 kernel/sched/core.c:3545
 schedule_timeout+0x70e/0xd20 kernel/time/timer.c:1777
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common+0x3fb/0x5d0 kernel/sched/completion.c:115
 wait_for_completion_timeout+0xe/0x10 kernel/sched/completion.c:155
 usb_start_wait_urb+0x12a/0x500 drivers/usb/core/message.c:62
 usb_bulk_msg+0x1d4/0x610 drivers/usb/core/message.c:253
 proc_bulk+0x4ed/0x640 drivers/usb/core/devio.c:1192
 usbdev_do_ioctl+0x1133/0x27a0 drivers/usb/core/devio.c:2400
 usbdev_ioctl+0x9/0x10 drivers/usb/core/devio.c:2550
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x196/0x1050 fs/ioctl.c:684
 ksys_ioctl+0x62/0x90 fs/ioctl.c:701
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x6e/0xb0 fs/ioctl.c:706
 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
Code: 00 84 c9 0f 85 f1 fd ff ff 83 3d 41 05 3a 01 00 0f 85 c2 00 00 00 48 8d 0d a4 2e 43 00 48 89 88 a8 00 00 00 0f 57 c0 0f 11 84 <24> 90 00 00 00 48 8b 0d d3 df 36 01 48 89 8c 24 90 00 00 00 48 8d 
RSP: 002b:00007f8d54c0c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000020000340 RSI: 00000000c0185502 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fffbdb1458f R14: 00007f8d54c0c300 R15: 0000000000022000

Showing all locks held in the system:
1 lock held by khungtaskd/1500:
 #0: 00000000d66e162d (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a kernel/locking/lockdep.c:4461
2 locks held by in:imklog/7864:
 #0: 000000007ed0f8bc (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766
 #1: 00000000b35d2fef (logbuf_lock){....}, at: is_bpf_text_address+0x0/0xe0 kernel/bpf/core.c:530

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1500 Comm: khungtaskd Not tainted 4.18.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x15a/0x20d lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.0+0x13/0xb6 lib/nmi_backtrace.c:103
 nmi_trigger_cpumask_backtrace+0xf6/0x11a lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline]
 watchdog+0x512/0x940 kernel/hung_task.c:252
 kthread+0x316/0x3d0 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:412
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54