Subscriber rejected, no memory
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 11330 Comm: syz-executor7 Not tainted 4.14.0-rc7-next-20171103+ #10
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff880039cba400 task.stack: ffff880028770000
RIP: 0010:perf_trace_lock_acquire+0xc0/0x980 include/trace/events/lock.h:13
RSP: 0018:ffff880028777668 EFLAGS: 00010002
RAX: 0000000000000007 RBX: 1ffff100050eeed7 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000020 RDI: ffffffff85f24de0
RBP: ffff880028777840 R08: 0000000000000000 R09: 0000000000000020
R10: dffffc0000000000 R11: ffffffff8154c3e0 R12: ffff880028777818
R13: 0000000000000000 R14: ffffffff85f24de0 R15: 0000000000000001
FS:  00007f6154b4f700(0000) GS:ffff88003ec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000707e00 CR3: 000000002713a000 CR4: 00000000000026f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000020001000
DR3: 0000000020001000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 trace_lock_acquire include/trace/events/lock.h:13 [inline]
 lock_acquire+0x394/0x580 kernel/locking/lockdep.c:4003
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:174
 spin_lock_bh include/linux/spinlock.h:320 [inline]
 tipc_subscrb_subscrp_delete+0x8f/0x480 net/tipc/subscr.c:201
 tipc_subscrb_delete net/tipc/subscr.c:238 [inline]
 tipc_subscrb_release_cb+0x17/0x30 net/tipc/subscr.c:316
 tipc_close_conn+0x171/0x270 net/tipc/server.c:204
 tipc_topsrv_kern_subscr+0x724/0x810 net/tipc/server.c:514
 tipc_group_create+0x702/0x9c0 net/tipc/group.c:184
 tipc_sk_join net/tipc/socket.c:2747 [inline]
 tipc_setsockopt+0x249/0xc10 net/tipc/socket.c:2861
 SYSC_setsockopt net/socket.c:1851 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1830
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x447c89
RSP: 002b:00007f6154b4ebd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f6154b4f6cc RCX: 0000000000447c89
RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000014
RBP: 0000000000000086 R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020c0bff0 R11: 0000000000000246 R12: 00000000004a96f0
R13: 0000000000000000 R14: 00007f6154b4e9c8 R15: 00007f6154b4eb38
Code: c7 40 1c 00 f2 f2 f2 c7 40 20 f2 f2 f2 f2 c7 40 24 00 f2 f2 f2 c7 40 28 f3 f3 f3 f3 48 8d 46 18 48 89 85 70 fe ff ff 48 c1 e8 03 <80> 3c 10 00 0f 85 da 04 00 00 49 8b 79 18 48 85 ff 0f 84 62 04 
RIP: perf_trace_lock_acquire+0xc0/0x980 include/trace/events/lock.h:13 RSP: ffff880028777668
---[ end trace b555b95cb6f0e9cd ]---