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: 10868 Comm: syz-executor1 Not tainted 4.14.0-rc7-next-20171102+ #37 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d9b18000 task.stack: ffff88019d400000 RIP: 0010:perf_trace_lock_acquire+0xc0/0x980 include/trace/events/lock.h:12 RSP: 0018:ffff88019d407668 EFLAGS: 00010002 RAX: 0000000000000007 RBX: 1ffff10033a80ed7 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000020 RDI: ffffffff85f24de0 RBP: ffff88019d407840 R08: 0000000000000000 R09: 0000000000000020 R10: dffffc0000000000 R11: ffffffff8154c3e0 R12: ffff88019d407818 R13: 0000000000000000 R14: ffffffff85f24de0 R15: 0000000000000001 FS: 00007f5f1632e700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002090f000 CR3: 00000001cb50c000 CR4: 00000000001426f0 Call Trace: trace_lock_acquire include/trace/events/lock.h:12 [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:173 spin_lock_bh include/linux/spinlock.h:319 [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: 0033:0x452869 RSP: 002b:00007f5f1632dbe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452869 RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000014 RBP: 0000000000000086 R08: 000000000000001c R09: 0000000000000000 R10: 0000000020ed7fe4 R11: 0000000000000212 R12: 00000000006f6380 R13: 00000000ffffffff R14: 0000000000758090 R15: 0000000000000003 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:12 RSP: ffff88019d407668 ---[ end trace 75fd76fc69302134 ]--- Kernel panic - not syncing: Fatal exception in interrupt Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..