------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 23623 at kernel/locking/lockdep.c:203 hlock_class kernel/locking/lockdep.c:203 [inline]
WARNING: CPU: 1 PID: 23623 at kernel/locking/lockdep.c:203 hlock_class kernel/locking/lockdep.c:192 [inline]
WARNING: CPU: 1 PID: 23623 at kernel/locking/lockdep.c:203 check_wait_context kernel/locking/lockdep.c:4688 [inline]
WARNING: CPU: 1 PID: 23623 at kernel/locking/lockdep.c:203 __lock_acquire+0x1344/0x54a0 kernel/locking/lockdep.c:4965
Modules linked in:
CPU: 1 PID: 23623 Comm: syz-executor.3 Not tainted 5.14.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hlock_class kernel/locking/lockdep.c:203 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:192 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4688 [inline]
RIP: 0010:__lock_acquire+0x1344/0x54a0 kernel/locking/lockdep.c:4965
Code: 08 84 d2 0f 85 f1 3d 00 00 8b 05 df de 11 0c 85 c0 0f 85 f4 fd ff ff 48 c7 c6 60 e6 8b 89 48 c7 c7 20 da 8b 89 e8 d6 6c 8d 07 <0f> 0b 31 ed e9 b7 f0 ff ff e8 7e bc 78 02 85 c0 0f 84 12 fe ff ff
RSP: 0018:ffffc900018ef870 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff88806aa3c0a0 RCX: 0000000000000000
RDX: ffff888023d49c40 RSI: ffffffff815d85c5 RDI: fffff5200031df00
RBP: 0000000000000cb3 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815d23fe R11: 0000000000000000 R12: ffff888023d4a6f8
R13: ffff888023d49c40 R14: 0000000000040000 R15: 0000000000040cb3
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005451f8 CR3: 000000002ae29000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire kernel/locking/lockdep.c:5625 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x40/0x120 net/core/sock.c:3162
 l2cap_sock_teardown_cb+0xa1/0x660 net/bluetooth/l2cap_sock.c:1528
 l2cap_chan_del+0xbc/0xa80 net/bluetooth/l2cap_core.c:622
 l2cap_conn_del+0x3c0/0x7b0 net/bluetooth/l2cap_core.c:1898
 l2cap_disconn_cfm net/bluetooth/l2cap_core.c:8177 [inline]
 l2cap_disconn_cfm+0x95/0xd0 net/bluetooth/l2cap_core.c:8170
 hci_disconn_cfm include/net/bluetooth/hci_core.h:1501 [inline]
 hci_conn_hash_flush+0x127/0x260 net/bluetooth/hci_conn.c:1608
 hci_dev_do_close+0x528/0x1130 net/bluetooth/hci_core.c:1778
 hci_unregister_dev+0x1c0/0x5a0 net/bluetooth/hci_core.c:4015
 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:340
 __fput+0x288/0x920 fs/file_table.c:280
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xbd4/0x2a60 kernel/exit.c:825
 do_group_exit+0x125/0x310 kernel/exit.c:922
 __do_sys_exit_group kernel/exit.c:933 [inline]
 __se_sys_exit_group kernel/exit.c:931 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
Code: Unable to access opcode bytes at RIP 0x4665bf.
RSP: 002b:00007fffdf180d18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fffdf180ed0 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000043
RBP: 0000000000000000 R08: 0000000000000025 R09: 00007fffdf180ed0
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bfc95
R13: 000000000000001c R14: 00000000ffffffff R15: 00007fffdf180f10
----------------
Code disassembly (best guess):
   0:	08 84 d2 0f 85 f1 3d 	or     %al,0x3df1850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	8b 05 df de 11 0c    	mov    0xc11dedf(%rip),%eax        # 0xc11deee
   f:	85 c0                	test   %eax,%eax
  11:	0f 85 f4 fd ff ff    	jne    0xfffffe0b
  17:	48 c7 c6 60 e6 8b 89 	mov    $0xffffffff898be660,%rsi
  1e:	48 c7 c7 20 da 8b 89 	mov    $0xffffffff898bda20,%rdi
  25:	e8 d6 6c 8d 07       	callq  0x78d6d00
  2a:	0f 0b                	ud2     <-- trapping instruction
  2c:	31 ed                	xor    %ebp,%ebp
  2e:	e9 b7 f0 ff ff       	jmpq   0xfffff0ea
  33:	e8 7e bc 78 02       	callq  0x278bcb6
  38:	85 c0                	test   %eax,%eax
  3a:	0f 84 12 fe ff ff    	je     0xfffffe52