------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 0 PID: 24288 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline]
WARNING: CPU: 0 PID: 24288 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4115 [inline]
WARNING: CPU: 0 PID: 24288 at kernel/locking/lockdep.c:183 __lock_acquire+0x8fb/0x1660 kernel/locking/lockdep.c:4391
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 24288 Comm: syz-executor.4 Not tainted 5.9.0-rc8-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+0xa3/0xcc lib/dump_stack.c:118
 panic+0x135/0x31a 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:4115 [inline]
RIP: 0010:__lock_acquire+0x8fb/0x1660 kernel/locking/lockdep.c:4391
Code: 01 85 c0 0f 84 b6 fe ff ff 8b 05 18 15 40 03 85 c0 0f 85 a8 fe ff ff 48 c7 c6 90 d3 e8 83 48 c7 c7 ca d0 e3 83 e8 30 38 f9 ff <0f> 0b 31 c0 e9 d2 f8 ff ff 49 8d 7c 24 d8 e8 32 be ff ff 48 83 78
RSP: 0018:ffffc9000a60bb80 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 000000000000081a RCX: 0000000000000001
RDX: 0000000080000001 RSI: 0000000000000001 RDI: 0000000000000082
RBP: ffff8881109ec100 R08: ffffffff85d28420 R09: 0000000000000016
R10: 0000000000005ee0 R11: ffffc9000a60b9aa R12: ffff8881109eca10
R13: 0000000000000008 R14: ffff88810f071938 R15: 0000000000000001
 lock_acquire+0xd7/0x400 kernel/locking/lockdep.c:5029
 flush_workqueue+0xa6/0x590 kernel/workqueue.c:2780
 drain_workqueue+0x9c/0x130 kernel/workqueue.c:2945
 hci_dev_do_reset net/bluetooth/hci_core.c:1873 [inline]
 hci_dev_reset+0x8d/0x120 net/bluetooth/hci_core.c:1916
 hci_sock_ioctl+0x174/0x3e0 net/bluetooth/hci_sock.c:1035
 sock_do_ioctl+0x38/0x130 net/socket.c:1047
 sock_ioctl+0x2f1/0x3e0 net/socket.c:1198
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x7c/0xb0 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cce9
Code: 2d 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 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fae6a567c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000001d300 RCX: 000000000045cce9
RDX: 0000000000000000 RSI: 00000000400448cb RDI: 0000000000000006
RBP: 000000000078c1c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078c18c
R13: 00007ffffdb88fff R14: 00007fae6a5689c0 R15: 000000000078c18c
Kernel Offset: disabled
Rebooting in 86400 seconds..