BUG: unable to handle kernel paging request at ffffffff867872c8
PGD 9e6e067 P4D 9e6e067 PUD 9e6f063 PMD 66001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 34 Comm: kworker/1:1 Not tainted 4.19.190-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events l2cap_chan_timeout
RIP: 0010:arch_atomic_inc arch/x86/include/asm/atomic.h:97 [inline]
RIP: 0010:atomic_inc include/asm-generic/atomic-instrumented.h:110 [inline]
RIP: 0010:__lock_acquire+0x256/0x3ff0 kernel/locking/lockdep.c:3308
Code: 00 49 8b 44 c6 08 48 85 c0 0f 84 38 ff ff ff 48 8d b8 38 01 00 00 be 04 00 00 00 48 89 44 24 10 e8 ff 34 4d 00 48 8b 44 24 10 <f0> ff 80 38 01 00 00 49 8d b5 80 08 00 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff8880b511f930 EFLAGS: 00010046
RAX: ffffffff86787190 RBX: 0000000000000000 RCX: ffffffff814ad991
RDX: fffffbfff0cf0e5a RSI: 0000000000000004 RDI: ffffffff867872c8
RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0cf0e59
R10: ffffffff867872cb R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b5116200 R14: ffff888046bf52e0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff867872c8 CR3: 0000000094208000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:334 [inline]
 lock_sock_nested+0x3b/0x110 net/core/sock.c:2864
 l2cap_sock_teardown_cb+0xa0/0x6d0 net/bluetooth/l2cap_sock.c:1340
 l2cap_chan_del+0xbc/0xa50 net/bluetooth/l2cap_core.c:599
 l2cap_chan_close+0x1b5/0x950 net/bluetooth/l2cap_core.c:757
 l2cap_chan_timeout+0x17e/0x2f0 net/bluetooth/l2cap_core.c:430
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2295
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
CR2: ffffffff867872c8
---[ end trace 8ce804e511f00623 ]---
RIP: 0010:arch_atomic_inc arch/x86/include/asm/atomic.h:97 [inline]
RIP: 0010:atomic_inc include/asm-generic/atomic-instrumented.h:110 [inline]
RIP: 0010:__lock_acquire+0x256/0x3ff0 kernel/locking/lockdep.c:3308
Code: 00 49 8b 44 c6 08 48 85 c0 0f 84 38 ff ff ff 48 8d b8 38 01 00 00 be 04 00 00 00 48 89 44 24 10 e8 ff 34 4d 00 48 8b 44 24 10 <f0> ff 80 38 01 00 00 49 8d b5 80 08 00 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff8880b511f930 EFLAGS: 00010046
RAX: ffffffff86787190 RBX: 0000000000000000 RCX: ffffffff814ad991
RDX: fffffbfff0cf0e5a RSI: 0000000000000004 RDI: ffffffff867872c8
RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0cf0e59
R10: ffffffff867872cb R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b5116200 R14: ffff888046bf52e0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff867872c8 CR3: 0000000094208000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400