------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 4670 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline]
WARNING: CPU: 0 PID: 4670 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4125 [inline]
WARNING: CPU: 0 PID: 4670 at kernel/locking/lockdep.c:183 __lock_acquire+0x771/0x16c0 kernel/locking/lockdep.c:4376
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 4670 Comm: syz-executor.4 Not tainted 5.9.0-rc1-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+0xb3/0xec lib/dump_stack.c:118
 panic+0x115/0x2fa kernel/panic.c:231
 __warn.cold.13+0x20/0x25 kernel/panic.c:600
 report_bug+0xc0/0xf0 lib/bug.c:198
 handle_bug+0x35/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x13/0x60 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:hlock_class kernel/locking/lockdep.c:183 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4125 [inline]
RIP: 0010:__lock_acquire+0x771/0x16c0 kernel/locking/lockdep.c:4376
Code: 28 85 c0 0f 84 dd fb ff ff 8b 05 e2 12 40 03 85 c0 0f 85 cf fb ff ff 48 c7 c6 50 ff e8 83 48 c7 c7 a2 fb e3 83 e8 3a 3c f9 ff <0f> 0b 31 c0 8b 4c 24 28 e9 66 fb ff ff 8b 05 54 2b af 04 85 c0 0f
RSP: 0018:ffffc90002127a38 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffffffff859ed7a0 RCX: 0000000000000000
RDX: 0000000080000003 RSI: ffffffff81249991 RDI: ffffffff81249a1b
RBP: ffff88810d20a680 R08: 0000000000000001 R09: 0000000000000016
R10: 000000000000123e R11: 0000000037363454 R12: ffff88810d20af68
R13: 0000000000000001 R14: 0000000000000004 R15: 0000000000000001
 lock_acquire+0xd0/0x3e0 kernel/locking/lockdep.c:5005
 finish_lock_switch kernel/sched/core.c:3516 [inline]
 finish_task_switch+0x91/0x280 kernel/sched/core.c:3617
 context_switch kernel/sched/core.c:3781 [inline]
 __schedule+0x3fb/0x880 kernel/sched/core.c:4527
 preempt_schedule_irq+0x42/0x80 kernel/sched/core.c:4785
 irqentry_exit_cond_resched kernel/entry/common.c:342 [inline]
 irqentry_exit+0x5a/0x80 kernel/entry/common.c:362
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline]
RIP: 0010:lock_acquire+0x109/0x3e0 kernel/locking/lockdep.c:5008
Code: 48 83 c4 20 83 e8 01 66 85 c0 89 82 e4 08 00 00 0f 85 47 02 00 00 48 83 3d db 3e 09 03 00 0f 84 37 02 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 8b 44 24 38 65 48 33 04 25 28 00 00 00 0f 85 b6
RSP: 0018:ffffc90002127cd0 EFLAGS: 00000282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: ffff88810d20a680 RSI: ffffffff85a4c2a0 RDI: 0000000000000282
RBP: 0000000000000000 R08: ffffffff85a4c2a0 R09: ffffffff85a4c2a0
R10: ffffffff84a9397c R11: 42928581b6f3be10 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810db32538 R15: 0000000000000000
 flush_workqueue+0xa6/0x590 kernel/workqueue.c:2780
 hci_dev_open+0x3a/0xa0 net/bluetooth/hci_core.c:1667
 hci_sock_bind+0x38c/0x6b0 net/bluetooth/hci_sock.c:1199
 __sys_bind+0xc7/0xe0 net/socket.c:1656
 __do_sys_bind net/socket.c:1667 [inline]
 __se_sys_bind net/socket.c:1665 [inline]
 __x64_sys_bind+0x11/0x20 net/socket.c:1665
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45caa9
Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f17aac75c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00000000004d99c0 RCX: 000000000045caa9
RDX: 0000000000000006 RSI: 0000000020000140 RDI: 0000000000000005
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000002c R14: 00000000004c2f59 R15: 00007f17aac766d4
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..