netdev - general protection fault in perf_trace_lock

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Message-ID: <001a11425c86f0c825055d384e19@google.com>
Date:   Sun, 05 Nov 2017 01:41:47 -0700
From:   syzbot 
        <bot+0cea668556ca5b811dc9725d82edbd87fea4defb@...kaller.appspotmail.com>
To:     davem@...emloft.net, jon.maloy@...csson.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com,
        tipc-discussion@...ts.sourceforge.net, ying.xue@...driver.com
Subject: general protection fault in perf_trace_lock_acquire

Hello,

syzkaller hit the following crash on  
5a3517e009e979f21977d362212b7729c5165d92
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.




R10: 0000000020ed7fe4 R11: 0000000000000212 R12: 00000000004b7550
R13: 00007f1a861ffb58 R14: 00000000004b7560 R15: 0000000000000000
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: 1 PID: 518 Comm: syz-executor4 Not tainted 4.14.0-rc7-next-20171103+  
#38
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
task: ffff8801c558a180 task.stack: ffff8801d9650000
RIP: 0010:perf_trace_lock_acquire+0xc0/0x980 include/trace/events/lock.h:13
RSP: 0018:ffff8801d9657668 EFLAGS: 00010002
RAX: 0000000000000007 RBX: 1ffff1003b2caed7 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000020 RDI: ffffffff85f24de0
RBP: ffff8801d9657840 R08: 0000000000000000 R09: 0000000000000020
R10: dffffc0000000000 R11: ffffffff8154c3e0 R12: ffff8801d9657818
R13: 0000000000000000 R14: ffffffff85f24de0 R15: 0000000000000001
FS:  00007f1a86200700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d4a84 CR3: 00000001ce90c000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 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: 0033:0x452869
RSP: 002b:00007f1a861ffbe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00000000007580d8 RCX: 0000000000452869
RDX: 0000000000000087 RSI: 000000000000010f RDI: 0000000000000014
RBP: 0000000000000086 R08: 000000000000001c R09: 0000000000000000
R10: 0000000020ed7fe4 R11: 0000000000000212 R12: 00000000004b7550
R13: 00007f1a861ffb58 R14: 00000000004b7560 R15: 0000000000000000
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:  
ffff8801d9657668
---[ end trace 2fd434e3de3d34c0 ]---


---
This bug is generated by a dumb bot. It may contain errors.
See https://goo.gl/tpsmEJ for details.
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