WARNING: CPU: 1 PID: 15570 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: 1 PID: 15570 Comm: syz-executor.0 Not tainted 5.1.0-rc1+ #32 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:ffff8880550cfa18 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffffffff12bcb4b RDX: 1ffffffff1467ca6 RSI: 0000000000000000 RDI: ffffffff8a33e530 RBP: ffff8880550cfa48 R08: 1ffff1100aa19f37 R09: ffffed100aa19f38 R10: ffffed100aa19f37 R11: 0000000000000003 R12: ffff8880925906d8 R13: dffffc0000000000 R14: 0000000000000282 R15: ffffffff8a0b7738 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 __vhci_create_device+0x2d0/0x5a0 drivers/bluetooth/hci_vhci.c:139 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline] vhci_write+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:299 call_write_iter include/linux/fs.h:1863 [inline] new_sync_write+0x4c7/0x760 fs/read_write.c:474 __vfs_write+0xe4/0x110 fs/read_write.c:487 vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0xea/0x1f0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458209 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2df36a2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2df36a2c90 RCX: 0000000000458209 RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2df36a36d4 R13: 00000000004c725c R14: 00000000004dcbc8 R15: 0000000000000005 Kernel Offset: disabled Rebooting in 86400 seconds..