------------[ cut here ]------------
WARNING: CPU: 0 PID: 5942 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 5942 Comm: kworker/u5:5 Not tainted 4.19.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
------------[ cut here ]------------
Workqueue: hci1 hci_conn_timeout
WARNING: CPU: 1 PID: 5944 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404
Call Trace:
Modules linked in:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x17c/0x226 lib/dump_stack.c:118
CPU: 1 PID: 5944 Comm: kworker/u5:7 Not tainted 4.19.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 panic+0x1cd/0x375 kernel/panic.c:186
Workqueue: hci2 hci_conn_timeout
RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404
 __warn.cold.7+0x1b/0x36 kernel/panic.c:541
Code: 87 e8 40 af eb ff 0f 0b e9 c0 30 36 ff e8 31 1d ba fa 48 c7 c7 00 5b cd 87 e8 42 a2 02 00 48 c7 c7 c0 5e cd 87 e8 1c af eb ff <0f> 0b e9 ab da 37 ff e8 0d 1d ba fa 48 c7 c7 80 64 cd 87 e8 1e a2
RSP: 0018:ffff8881d7827d40 EFLAGS: 00010286
 report_bug+0x1a1/0x200 lib/bug.c:186
RAX: 0000000000000024 RBX: ffff8881e753cb60 RCX: 0000000000000001
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x200/0x350 arch/x86/kernel/traps.c:296
RDX: 0000000000000000 RSI: ffffffff876786c0 RDI: ffffffff8a19eaa0
RBP: ffff8881d7827d58 R08: ffffed103ed25081 R09: ffffed103ed25080
R10: ffffed103ed25080 R11: ffff8881f6928407 R12: ffff8881e753ca40
R13: ffff8881f28e6040 R14: ffff8881e7c66400 R15: ffff8881e753cb60
FS:  0000000000000000(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
CR2: 000055fdca6e3a18 CR3: 000000000846d002 CR4: 00000000001606e0
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
RIP: 0010:hci_conn_timeout.cold.5+0xc/0x13 net/bluetooth/hci_conn.c:404
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Code: 87 e8 40 af eb ff 0f 0b e9 c0 30 36 ff e8 31 1d ba fa 48 c7 c7 00 5b cd 87 e8 42 a2 02 00 48 c7 c7 c0 5e cd 87 e8 1c af eb ff <0f> 0b e9 ab da 37 ff e8 0d 1d ba fa 48 c7 c7 80 64 cd 87 e8 1e a2
Call Trace:
RSP: 0018:ffff8881e7bb7d40 EFLAGS: 00010286
 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152
RAX: 0000000000000024 RBX: ffff8881e728aa20 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff876786c0 RDI: ffffffff8a19eaa0
RBP: ffff8881e7bb7d58 R08: ffffed103ed05081 R09: ffffed103ed05080
R10: ffffed103ed05080 R11: ffff8881f6828407 R12: ffff8881e728a900
R13: ffff8881f28e6040 R14: ffff8881e4566800 R15: ffff8881e728aa20
 process_one_work+0x7b9/0x15a0 kernel/workqueue.c:2152
 worker_thread+0x85/0xb60 kernel/workqueue.c:2295
 kthread+0x347/0x410 kernel/kthread.c:259
 worker_thread+0x85/0xb60 kernel/workqueue.c:2295
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
 kthread+0x347/0x410 kernel/kthread.c:259
irq event stamp: 31096
hardirqs last  enabled at (31095): [<ffffffff814c8eae>] console_unlock+0xb9e/0xe20 kernel/printk/printk.c:2464
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
hardirqs last disabled at (31096): [<ffffffff810050a0>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last  enabled at (30280): [<ffffffff8700062d>] __do_softirq+0x62d/0x919 kernel/softirq.c:318
softirqs last disabled at (29977): [<ffffffff813929ff>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (29977): [<ffffffff813929ff>] irq_exit+0x17f/0x1c0 kernel/softirq.c:412
---[ end trace 384ef31e86a5a68c ]---
Kernel Offset: disabled
Rebooting in 86400 seconds..