------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(1)
WARNING: CPU: 1 PID: 2894 at kernel/locking/lockdep.c:183 hlock_class kernel/locking/lockdep.c:183 [inline]
WARNING: CPU: 1 PID: 2894 at kernel/locking/lockdep.c:183 check_wait_context kernel/locking/lockdep.c:4100 [inline]
WARNING: CPU: 1 PID: 2894 at kernel/locking/lockdep.c:183 __lock_acquire+0x1a46/0x2ae0 kernel/locking/lockdep.c:4376
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 2894 Comm: kworker/1:6 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d6/0x29e lib/dump_stack.c:118
 panic+0x2c0/0x800 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x16/0x40 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:4100 [inline]
RIP: 0010:__lock_acquire+0x1a46/0x2ae0 kernel/locking/lockdep.c:4376
Code: 35 08 00 0f 85 c7 ea ff ff 31 db 48 c7 c7 8e 05 08 89 48 c7 c6 55 f0 0c 89 31 c0 e8 b4 91 ec ff 48 ba 00 00 00 00 00 fc ff df <0f> 0b e9 bb ea ff ff 31 db e9 aa ea ff ff 48 c7 c1 00 ad 7f 8b 80
RSP: 0018:ffffc90015eff950 EFLAGS: 00010046
RAX: 1594a292723d5700 RBX: 0000000000000000 RCX: ffff888031ed4180
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: 0000000000000086
RBP: ffffc90015effab0 R08: dffffc0000000000 R09: fffffbfff129f8f5
R10: fffffbfff129f8f5 R11: 0000000000000000 R12: 0000000000000000
R13: ffff888031ed4b28 R14: 0000000000001974 R15: 0000000000041974
 lock_acquire+0x140/0x6f0 kernel/locking/lockdep.c:5006
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x43/0x110 net/core/sock.c:3048
 l2cap_sock_teardown_cb+0x72/0x3e0 net/bluetooth/l2cap_sock.c:1520
 l2cap_chan_del+0xa3/0x760 net/bluetooth/l2cap_core.c:618
 l2cap_chan_close+0x7bf/0xae0 net/bluetooth/l2cap_core.c:823
 l2cap_chan_timeout+0x125/0x1e0 net/bluetooth/l2cap_core.c:436
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2269
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2415
 kthread+0x37e/0x3a0 drivers/block/aoe/aoecmd.c:1234
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Kernel Offset: disabled
Rebooting in 86400 seconds..