INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.8.0-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+0x18f/0x20d lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:894 [inline]
 register_lock_class+0x157d/0x1630 kernel/locking/lockdep.c:1206
 __lock_acquire+0xf9/0x5640 kernel/locking/lockdep.c:4305
 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:5005
 __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+0x3b/0x110 net/core/sock.c:3040
 l2cap_sock_teardown_cb+0x88/0x400 net/bluetooth/l2cap_sock.c:1520
 l2cap_chan_del+0xad/0x1300 net/bluetooth/l2cap_core.c:618
 l2cap_chan_close+0x118/0xb10 net/bluetooth/l2cap_core.c:823
 l2cap_chan_timeout+0x173/0x450 net/bluetooth/l2cap_core.c:436
 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
general protection fault, probably for non-canonical address 0xe025195580258ae2: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0128eaac012c5710-0x0128eaac012c5717]
CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
RIP: 0010:__pv_queued_spin_lock_slowpath+0x538/0xaf0 kernel/locking/qspinlock.c:471
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 50 05 00 00 4a 03 1c e5 40 49 83 89 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 20 05 00 00 4c 8d 6b 14 48 89 6c 24 08 48 8b 2c
RSP: 0018:ffffc90000d8f9c8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0128eaac012c5710 RCX: ffffffff815ae6bf
RDX: 00251d5580258ae2 RSI: 0000000000000002 RDI: ffffffff89854930
RBP: ffff8880622ea088 R08: 0000000000000001 R09: ffff8880622ea08b
R10: ffffed100c45d411 R11: 0000000000000183 R12: 0000000000003ffe
R13: 0000000000000001 R14: 0000000000080000 R15: ffff8880ae736bc0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001590004 CR3: 0000000087c76000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:656 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:50 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:82 [inline]
 do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
 spin_lock_bh include/linux/spinlock.h:359 [inline]
 lock_sock_nested+0x3b/0x110 net/core/sock.c:3040
 l2cap_sock_teardown_cb+0x88/0x400 net/bluetooth/l2cap_sock.c:1520
 l2cap_chan_del+0xad/0x1300 net/bluetooth/l2cap_core.c:618
 l2cap_chan_close+0x118/0xb10 net/bluetooth/l2cap_core.c:823
 l2cap_chan_timeout+0x173/0x450 net/bluetooth/l2cap_core.c:436
 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 0f8d8f9bb7bacea7 ]---
RIP: 0010:__pv_queued_spin_lock_slowpath+0x538/0xaf0 kernel/locking/qspinlock.c:471
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 50 05 00 00 4a 03 1c e5 40 49 83 89 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 20 05 00 00 4c 8d 6b 14 48 89 6c 24 08 48 8b 2c
RSP: 0018:ffffc90000d8f9c8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0128eaac012c5710 RCX: ffffffff815ae6bf
RDX: 00251d5580258ae2 RSI: 0000000000000002 RDI: ffffffff89854930
RBP: ffff8880622ea088 R08: 0000000000000001 R09: ffff8880622ea08b
R10: ffffed100c45d411 R11: 0000000000000183 R12: 0000000000003ffe
R13: 0000000000000001 R14: 0000000000080000 R15: ffff8880ae736bc0
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001590004 CR3: 0000000087c76000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400