kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 16946 Comm: syz-executor.2 Not tainted 4.14.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888053bca280 task.stack: ffff888056ce0000
RIP: 0010:trace_event_get_offsets_lock_acquire include/trace/events/lock.h:13 [inline]
RIP: 0010:perf_trace_lock_acquire+0xb2/0x4b0 include/trace/events/lock.h:13
RSP: 0000:ffff888056ce7b00 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffff888099094ba8 RCX: 0000000000000000
RDX: 0000000000000006 RSI: 0000000000000018 RDI: ffffffff87b6f080
RBP: ffff888056ce7bc0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87b6f000
R13: 0000000000000018 R14: ffff888056ce7b98 R15: 0000000000000000
FS:  00007f8338acc700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000048a380 CR3: 00000000a5596000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 trace_lock_acquire include/trace/events/lock.h:13 [inline]
 lock_acquire+0x2b8/0x3f0 kernel/locking/lockdep.c:3997
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
 prepare_to_wait+0x7d/0x2a0 kernel/sched/wait.c:234
 nr_accept+0x1de/0x600 net/netrom/af_netrom.c:796
 SYSC_accept4 net/socket.c:1587 [inline]
 SyS_accept4+0x2dc/0x580 net/socket.c:1537
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45ca69
RSP: 002b:00007f8338acbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 00000000004d95c0 RCX: 000000000045ca69
RDX: 0000000020000100 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 000000000078c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000080800 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000013 R14: 00000000004c2d7d R15: 00007f8338acc6d4
Code: 00 0f 85 37 03 00 00 49 8d 45 18 4d 8b bc 24 80 00 00 00 48 89 c2 48 89 85 58 ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 1d 03 00 00 49 8b 7d 18 48 85 ff 0f 84 c3 02 
RIP: trace_event_get_offsets_lock_acquire include/trace/events/lock.h:13 [inline] RSP: ffff888056ce7b00
RIP: perf_trace_lock_acquire+0xb2/0x4b0 include/trace/events/lock.h:13 RSP: ffff888056ce7b00
---[ end trace 07ae33af8587d001 ]---