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-4,10.128.15.216' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 50.126394] ------------[ cut here ]------------ [ 50.131342] kernel BUG at net/packet/af_packet.c:1521! [ 50.136877] invalid opcode: 0000 [#1] SMP KASAN [ 50.141530] Dumping ftrace buffer: [ 50.145046] (ftrace buffer empty) [ 50.148734] Modules linked in: [ 50.151908] CPU: 0 PID: 8837 Comm: syzkaller121704 Not tainted 4.13.0-next-20170904+ #14 [ 50.160108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.169437] task: ffff8801c28e4200 task.stack: ffff8801c2f10000 [ 50.175475] RIP: 0010:__unregister_prot_hook+0x139/0x280 [ 50.180898] RSP: 0018:ffff8801c2f17700 EFLAGS: 00010297 [ 50.186249] RAX: ffff8801c28e4200 RBX: ffff8801c328e980 RCX: 0000000000000000 [ 50.193496] RDX: 0000000000000000 RSI: ffffffff84d40ec1 RDI: ffff8801c295c308 [ 50.200741] RBP: ffff8801c2f17740 R08: ffff8801c2f17050 R09: ffff8801c2f17048 [ 50.207988] R10: ffff8801c2f16fc0 R11: 1ffff1003851cad3 R12: ffff8801c295c300 [ 50.215234] R13: ffff8801c328e980 R14: 0000000000000000 R15: ffff8801c2f17d70 [ 50.222493] FS: 00007fa4f7af7700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 50.230696] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.236553] CR2: 00000000208e3000 CR3: 00000001cfdf3000 CR4: 00000000001406f0 [ 50.243801] Call Trace: [ 50.246376] packet_set_ring+0xe7c/0x1b70 [ 50.250515] ? packet_poll+0x5c0/0x5c0 [ 50.254387] ? __might_fault+0xe0/0x1d0 [ 50.258347] ? lock_release+0xd70/0xd70 [ 50.262299] ? check_same_owner+0x320/0x320 [ 50.266596] ? __check_object_size+0x25d/0x4f0 [ 50.271208] ? __might_sleep+0x95/0x190 [ 50.275166] ? kasan_check_write+0x14/0x20 [ 50.279380] ? _copy_from_user+0x99/0x110 [ 50.283508] packet_setsockopt+0x6cd/0x1e80 [ 50.287811] ? fanout_add+0x1190/0x1190 [ 50.291761] ? lock_downgrade+0x990/0x990 [ 50.295900] ? __fget+0xbb/0x580 [ 50.299250] ? lock_release+0xd70/0xd70 [ 50.303205] ? __lock_is_held+0xbc/0x140 [ 50.307253] ? __fget+0x362/0x580 [ 50.310693] ? iterate_fd+0x3f0/0x3f0 [ 50.314481] ? find_held_lock+0x39/0x1d0 [ 50.318530] ? sock_has_perm+0x29c/0x400 [ 50.322565] ? __fget_light+0x29d/0x390 [ 50.326517] ? selinux_tun_dev_create+0xc0/0xc0 [ 50.331164] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 50.336850] ? selinux_netlbl_sock_rcv_skb+0x730/0x730 [ 50.342112] ? do_raw_spin_trylock+0x190/0x190 [ 50.346671] ? lock_release+0xd70/0xd70 [ 50.350631] ? selinux_socket_setsockopt+0x64/0x80 [ 50.355548] SyS_setsockopt+0x189/0x360 [ 50.359499] ? SyS_setsockopt+0x189/0x360 [ 50.363633] ? SyS_recv+0x40/0x40 [ 50.367066] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 50.371889] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.376902] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.381641] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 50.386371] RIP: 0033:0x445d39 [ 50.389539] RSP: 002b:00007fa4f7af6dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036 [ 50.397223] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445d39 [ 50.404466] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000004 [ 50.411714] RBP: 0000000000000082 R08: 000000000000047e R09: 00007fa4f7af7700 [ 50.418960] R10: 0000000020001000 R11: 0000000000000202 R12: 0000000000000000 [ 50.426207] R13: 00007ffe31674eaf R14: 00007fa4f7af79c0 R15: 0000000000000000 [ 50.433466] Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4e 01 00 00 4d 3b 6c c4 28 74 16 83 c3 01 e8 f1 17 2d fd 44 39 f3 75 cd e8 e7 17 2d fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 d6 17 2d fd 49 8d 7c dc [ 50.452637] RIP: __unregister_prot_hook+0x139/0x280 RSP: ffff8801c2f17700 [ 50.459632] ---[ end trace 5ca9d00baeae474d ]--- [ 50.464385] Kernel panic - not syncing: Fatal exception [ 50.470016] Dumping ftrace buffer: [ 50.473530] (ftrace buffer empty) [ 50.477207] Kernel Offset: disabled [ 50.480801] Rebooting in 86400 seconds..