INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-next-kasan-gce-6,10.128.15.212' (ECDSA) to the list of known hosts.
2017/08/15 16:36:19 parsed 1 programs
2017/08/15 16:36:19 executed programs: 0
2017/08/15 16:36:24 executed programs: 193
2017/08/15 16:36:29 executed programs: 386
syzkaller login: [   66.307331] BUG: unable to handle kernel paging request at ffffff0100008000
[   66.308504] IP: skb_release_data+0x3c2/0x790
[   66.309131] PGD 644b067 
[   66.309135] P4D 644b067 
[   66.309520] PUD 0 
[   66.309921] 
[   66.310510] Oops: 0000 [#1] SMP KASAN
[   66.311049] Dumping ftrace buffer:
[   66.311550]    (ftrace buffer empty)
[   66.312110] Modules linked in:
[   66.312619] CPU: 0 PID: 5185 Comm: syz-executor0 Not tainted 4.13.0-rc5-next-20170815+ #3
[   66.313849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   66.315166] task: ffff8801c51c23c0 task.stack: ffff8801c57b8000
[   66.315970] RIP: 0010:skb_release_data+0x3c2/0x790
[   66.316653] RSP: 0018:ffff8801c57beda8 EFLAGS: 00010246
[   66.317384] RAX: 1fffffe020001000 RBX: 0000000000000020 RCX: 0000000000000000
[   66.318367] RDX: 0000000000000000 RSI: ffffffff85b34bc0 RDI: ffff8801cf288188
[   66.319381] RBP: ffff8801c57beec8 R08: ffff8801c541dd48 R09: 0000000000000000
[   66.320346] R10: ffff8801c57bf6b0 R11: 0000000000000007 R12: dffffc0000000000
[   66.321305] R13: ffffff0100008000 R14: ffff8801c541dc80 R15: 0000000000000000
[   66.322291] FS:  00007f805f90a700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   66.323385] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   66.324179] CR2: ffffff0100008000 CR3: 00000001c58ce000 CR4: 00000000001406f0
[   66.325160] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   66.326127] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   66.327122] Call Trace:
[   66.327540]  ? print_usage_bug+0x480/0x480
[   66.331745]  ? perf_tp_event+0x7f4/0xae0
[   66.335789]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.340885]  ? skb_tx_error+0x2c0/0x2c0
[   66.344836]  ? __lock_is_held+0xb6/0x140
[   66.348885]  skb_release_all+0x4a/0x60
[   66.352753]  kfree_skb+0x15d/0x4c0
[   66.356262]  ? ip_rcv+0x40a/0x17d0
[   66.359775]  ? __kfree_skb+0x20/0x20
[   66.363466]  ? find_get_context.isra.84+0x670/0x670
[   66.368540]  ? __is_insn_slot_addr+0x1fc/0x330
[   66.373103]  ? __lock_acquire+0x6aa/0x3bc0
[   66.377419]  ip_rcv+0x40a/0x17d0
[   66.380777]  ? ip_local_deliver+0x6d0/0x6d0
[   66.386203]  ? debug_check_no_locks_freed+0x3c0/0x3c0
[   66.391371]  ? __lock_acquire+0x6aa/0x3bc0
[   66.395585]  ? __free_insn_slot+0x5c0/0x5c0
[   66.399883]  ? __lock_is_held+0xb6/0x140
[   66.403939]  ? ip_local_deliver+0x6d0/0x6d0
[   66.408236]  __netif_receive_skb_core+0x19af/0x33d0
[   66.413223]  ? unwind_get_return_address+0x61/0xa0
[   66.418146]  ? nf_ingress+0x9f0/0x9f0
[   66.421938]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.427037]  ? save_stack+0xa3/0xd0
[   66.430652]  ? perf_tp_event+0xae0/0xae0
[   66.434695]  ? kasan_slab_alloc+0x12/0x20
[   66.438815]  ? kmem_cache_alloc+0x12e/0x760
[   66.443114]  ? __build_skb+0x9d/0x450
[   66.446892]  ? memset+0x31/0x40
[   66.450151]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.455238]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.460310]  ? perf_trace_run_bpf_submit+0x1ae/0x290
[   66.465401]  ? perf_tp_event+0xae0/0xae0
[   66.469441]  ? memset+0x31/0x40
[   66.472705]  ? perf_trace_lock_acquire+0x445/0x900
[   66.477618]  ? perf_trace_lock+0x860/0x860
[   66.482439]  ? netif_receive_skb_internal+0x1d7/0x5e0
[   66.487623]  ? pvclock_read_flags+0x160/0x160
[   66.492187]  ? lock_acquire+0x1d5/0x580
[   66.496134]  ? lock_acquire+0x1d5/0x580
[   66.500082]  ? netif_receive_skb_internal+0x93/0x5e0
[   66.505166]  ? ktime_get_with_offset+0x2c1/0x420
[   66.509906]  ? lock_release+0xa40/0xa40
[   66.513850]  ? do_gettimeofday+0x190/0x190
[   66.518072]  __netif_receive_skb+0x2c/0x1b0
[   66.522364]  ? __netif_receive_skb+0x2c/0x1b0
[   66.526832]  netif_receive_skb_internal+0x10b/0x5e0
[   66.531821]  ? dev_cpu_dead+0xb00/0xb00
[   66.535768]  ? tun_device_event+0xca0/0xca0
[   66.540084]  ? rcu_pm_notify+0xc0/0xc0
[   66.544048]  netif_receive_skb+0xae/0x390
[   66.548175]  ? netif_receive_skb_internal+0x5e0/0x5e0
[   66.553346]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.558418]  ? memset+0x31/0x40
[   66.561675]  ? perf_trace_run_bpf_submit+0x1a7/0x290
[   66.566764]  ? tun_rx_batched.isra.43+0x5bd/0x860
[   66.571585]  tun_rx_batched.isra.43+0x5e7/0x860
[   66.576315]  ? skb_get_hash_perturb+0x9d0/0x9d0
[   66.580956]  ? tun_sock_write_space+0x370/0x370
[   66.585605]  ? tun_free_netdev+0x1b0/0x1b0
[   66.589822]  ? check_noncircular+0x20/0x20
[   66.594066]  tun_get_user+0x11dd/0x2150
[   66.598042]  ? tun_flow_update+0xf70/0xf70
[   66.602270]  ? __tun_get+0x1ab/0x2e0
[   66.605979]  ? lock_downgrade+0x990/0x990
[   66.611057]  ? lock_release+0xa40/0xa40
[   66.615006]  ? __lock_is_held+0xb6/0x140
[   66.619060]  ? __tun_get+0x1d4/0x2e0
[   66.622744]  ? tun_chr_close+0x60/0x60
[   66.626616]  tun_chr_write_iter+0xd8/0x190
[   66.630825]  __vfs_write+0x684/0x970
[   66.634516]  ? default_llseek+0x290/0x290
[   66.638651]  ? _cond_resched+0x14/0x30
[   66.642513]  ? avc_policy_seqno+0x9/0x20
[   66.646548]  ? selinux_file_permission+0x82/0x460
[   66.651377]  ? rw_verify_area+0xe5/0x2b0
[   66.655405]  ? __fdget_raw+0x20/0x20
[   66.659094]  vfs_write+0x189/0x510
[   66.662623]  SyS_write+0xef/0x220
[   66.666057]  ? SyS_socket+0x137/0x200
[   66.669830]  ? SyS_read+0x220/0x220
[   66.673439]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   66.678522]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   66.683261]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   66.687985] RIP: 0033:0x40b751
[   66.691152] RSP: 002b:00007f805f909c10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
[   66.698829] RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040b751
[   66.706068] RDX: 0000000000000036 RSI: 0000000020002000 RDI: 0000000000000003
[   66.713306] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
[   66.720548] R10: 00000000000f4246 R11: 0000000000000293 R12: 00000000004bad6e
[   66.727798] R13: 00000000ffffffff R14: 000000002011c000 R15: 0000000000000000
[   66.735062] Code: ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 68 08 4d 85 ed 74 2b e8 60 77 8d fd 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 0f 85 97 03 00 00 <49> 8b 5d 00 4c 89 ef e8 42 cf ff ff 48 85 db 49 89 dd 75 d5 e8 
[   66.754240] RIP: skb_release_data+0x3c2/0x790 RSP: ffff8801c57beda8
[   66.760612] CR2: ffffff0100008000
[   66.764125] ---[ end trace 7d8e46cfbe2a0fd4 ]---
[   66.768847] Kernel panic - not syncing: Fatal exception in interrupt
[   66.775771] Dumping ftrace buffer:
[   66.779288]    (ftrace buffer empty)
[   66.782967] Kernel Offset: disabled
[   66.786565] Rebooting in 86400 seconds..