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-net-kasan-gce-9,10.128.0.33' (ECDSA) to the list of known hosts.
2017/08/15 01:27:41 parsed 1 programs
2017/08/15 01:27:41 executed programs: 0
2017/08/15 01:27:46 executed programs: 891
syzkaller login: [   36.611755] ------------[ cut here ]------------
[   36.622500] kernel BUG at ./include/linux/skbuff.h:2064!
[   36.636462] invalid opcode: 0000 [#1] SMP KASAN
[   36.641129] Dumping ftrace buffer:
[   36.644645]    (ftrace buffer empty)
[   36.648332] Modules linked in:
[   36.651512] CPU: 0 PID: 6101 Comm: syz-executor3 Not tainted 4.13.0-rc4+ #4
[   36.658585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.667921] task: ffff8801c5e50340 task.stack: ffff8801c6200000
[   36.673972] RIP: 0010:__ip6_make_skb+0x18cf/0x1f70
[   36.678883] RSP: 0018:ffff8801c6207570 EFLAGS: 00010297
[   36.684234] RAX: ffff8801c5e50340 RBX: 0000000000000028 RCX: 0000000000000001
[   36.691474] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801c66b35e0
[   36.698715] RBP: ffff8801c6207780 R08: ffff8801c59303bc R09: 0000000000000000
[   36.705954] R10: ffff8801c62077a0 R11: 0000000000000000 R12: ffff8801c59303c8
[   36.713187] R13: ffff8801c5930340 R14: 0000000000002008 R15: dffffc0000000000
[   36.720423] FS:  00007f7dc68dd700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
[   36.728618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.734464] CR2: 00000000004c3d10 CR3: 00000001c5a35000 CR4: 00000000001406f0
[   36.741698] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   36.748931] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   36.756162] Call Trace:
[   36.758722]  ? ip6_output+0x840/0x840
[   36.762488]  ? futex_wait_queue_me+0x441/0x7e0
[   36.767044]  ? lock_acquire+0x1d5/0x580
[   36.770988]  ? lock_sock_nested+0xa3/0x110
[   36.775197]  ? lock_acquire+0x1d5/0x580
[   36.779137]  ? udpv6_sendmsg+0x9a3/0x31a0
[   36.783253]  udp_v6_push_pending_frames+0x255/0x390
[   36.788242]  ? udp_v6_push_pending_frames+0x255/0x390
[   36.793398]  ? udp_v6_send_skb+0xe70/0xe70
[   36.797599]  ? ip6_append_data+0x189/0x290
[   36.801810]  ? ip_reply_glue_bits+0xb0/0xb0
[   36.806100]  udpv6_sendmsg+0x280d/0x31a0
[   36.810130]  ? ip_reply_glue_bits+0xb0/0xb0
[   36.814424]  ? udpv6_destroy_sock+0xd0/0xd0
[   36.818712]  ? __lock_is_held+0xb6/0x140
[   36.822740]  ? check_noncircular+0x20/0x20
[   36.826953]  ? __fget+0x35c/0x570
[   36.830382]  ? iterate_fd+0x3f0/0x3f0
[   36.834149]  ? do_futex+0x781/0x20a0
[   36.837824]  ? __fget+0x333/0x570
[   36.841243]  ? find_held_lock+0x35/0x1d0
[   36.845283]  ? __might_fault+0x110/0x1d0
[   36.849322]  ? sock_has_perm+0x29c/0x400
[   36.853356]  ? lock_downgrade+0x990/0x990
[   36.857467]  ? selinux_tun_dev_create+0xc0/0xc0
[   36.862097]  ? lock_release+0xa40/0xa40
[   36.866041]  ? check_same_owner+0x320/0x320
[   36.870327]  ? __check_object_size+0x25d/0x4f0
[   36.874876]  inet_sendmsg+0x11f/0x5e0
[   36.878641]  ? inet_sendmsg+0x11f/0x5e0
[   36.882585]  ? __might_sleep+0x95/0x190
[   36.886522]  ? inet_recvmsg+0x5f0/0x5f0
[   36.890460]  ? selinux_socket_sendmsg+0x36/0x40
[   36.895096]  ? security_socket_sendmsg+0x89/0xb0
[   36.899820]  ? inet_recvmsg+0x5f0/0x5f0
[   36.903760]  sock_sendmsg+0xca/0x110
[   36.907439]  SYSC_sendto+0x352/0x5a0
[   36.911133]  ? SYSC_connect+0x470/0x470
[   36.915097]  ? selinux_netlbl_socket_setsockopt+0x10c/0x460
[   36.920807]  ? ipv6_setsockopt+0xd7/0x150
[   36.924940]  ? ipv6_setsockopt+0xa8/0x150
[   36.929073]  ? do_futex+0x20a0/0x20a0
[   36.932842]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   36.937650]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   36.942631]  SyS_sendto+0x40/0x50
[   36.946051]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.950768] RIP: 0033:0x4512e9
[   36.953921] RSP: 002b:00007f7dc68dcc08 EFLAGS: 00000216 ORIG_RAX: 000000000000002c
[   36.961590] RAX: ffffffffffffffda RBX: 00000000007180a8 RCX: 00000000004512e9
[   36.968826] RDX: 0000000000000000 RSI: 0000000020f5b000 RDI: 0000000000000003
[   36.976059] RBP: 0000000000000086 R08: 0000000020f5afe4 R09: 000000000000001c
[   36.983293] R10: 0000000000000800 R11: 0000000000000216 R12: 0000000000000000
[   36.990526] R13: 0000000000a6f7ef R14: 00007f7dc68dd9c0 R15: 0000000000000002
[   36.997777] Code: 6b 77 fd e9 c5 e8 ff ff e8 9f 6b 77 fd e9 4a ea ff ff 48 89 f7 e8 72 6b 77 fd e9 aa eb ff ff e8 28 1e 44 fd 0f 0b e8 21 1e 44 fd <0f> 0b 49 8d 45 78 4d 8d 45 7c 48 89 85 78 fe ff ff 49 8d 85 ba 
[   37.016857] RIP: __ip6_make_skb+0x18cf/0x1f70 RSP: ffff8801c6207570
[   37.023372] ---[ end trace 82effc8ad6d96456 ]---
[   37.028264] Kernel panic - not syncing: Fatal exception
[   37.033935] Dumping ftrace buffer:
[   37.037442]    (ftrace buffer empty)
[   37.041117] Kernel Offset: disabled
[   37.044706] Rebooting in 86400 seconds..