WARNING: CPU: 0 PID: 7892 at kernel/locking/lockdep.c:4925 lockdep_unregister_key+0x1ef/0x4c0 kernel/locking/lockdep.c:4925
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7892 Comm: syz-executor.1 Not tainted 5.1.0-rc1+ #35
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:lockdep_unregister_key+0x1ef/0x4c0 kernel/locking/lockdep.c:4925
Code: 00 00 00 00 00 fc ff df 4c 89 c2 48 c1 ea 03 80 3c 02 00 0f 85 c9 02 00 00 48 b8 00 02 00 00 00 00 ad de 49 89 44 24 08 eb 02 <0f> 0b ba 01 00 00 00 4c 89 e6 4c 89 ff e8 8f de ff ff 4c 89 ff e8
RSP: 0018:ffff8880536e7c68 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff12bcb73
RDX: 1ffffffff146793e RSI: 0000000000000000 RDI: ffffffff8a33c9f0
RBP: ffff8880536e7c98 R08: 1ffff1100a6dcf81 R09: ffffed100a6dcf82
R10: ffffed100a6dcf81 R11: 0000000000000003 R12: ffff8880989556d8
R13: dffffc0000000000 R14: 0000000000000282 R15: ffffffff8a0b9748
 wq_unregister_lockdep kernel/workqueue.c:3455 [inline]
 alloc_workqueue+0xc52/0xf30 kernel/workqueue.c:4296
 hci_register_dev+0x1b8/0x860 net/bluetooth/hci_core.c:3288
 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:676 [inline]
 hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:700 [inline]
 hci_uart_tty_ioctl+0x766/0xb00 drivers/bluetooth/hci_ldisc.c:754
 tty_compat_ioctl+0x252/0x480 drivers/tty/tty_io.c:2849
 __do_compat_sys_ioctl fs/compat_ioctl.c:1052 [inline]
 __se_compat_sys_ioctl fs/compat_ioctl.c:998 [inline]
 __ia32_compat_sys_ioctl+0x197/0x620 fs/compat_ioctl.c:998
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7ffb869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f5df70cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000400455c8
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..