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 '10.128.0.55' (ECDSA) to the list of known hosts. 2018/04/06 07:41:51 parsed 1 programs 2018/04/06 07:41:51 executed programs: 0 syzkaller login: [ 29.784915] IPVS: ftp: loaded support on port[0] = 21 [ 29.793213] IPVS: ftp: loaded support on port[0] = 21 [ 29.796141] IPVS: ftp: loaded support on port[0] = 21 [ 29.808884] IPVS: ftp: loaded support on port[0] = 21 [ 29.820855] IPVS: ftp: loaded support on port[0] = 21 [ 29.826490] IPVS: ftp: loaded support on port[0] = 21 [ 29.843918] IPVS: ftp: loaded support on port[0] = 21 [ 29.847520] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 result: failed=false hanged=false err=executor 4: failed to write control pipe: write |1: broken pipe lstat(./0/file0) failed (errno 107) loop exited with status 69 (errno 0) RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed [ 30.212292] IPVS: ftp: loaded support on port[0] = 21 [ 30.212520] IPVS: ftp: loaded support on port[0] = 21 [ 30.221128] IPVS: ftp: loaded support on port[0] = 21 [ 30.231721] IPVS: ftp: loaded support on port[0] = 21 [ 30.235946] IPVS: ftp: loaded support on port[0] = 21 [ 30.245799] IPVS: ftp: loaded support on port[0] = 21 [ 30.250503] IPVS: ftp: loaded support on port[0] = 21 [ 30.256147] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed [ 30.482882] IPVS: ftp: loaded support on port[0] = 21 [ 30.495349] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed [ 30.525774] IPVS: ftp: loaded support on port[0] = 21 [ 30.540257] IPVS: ftp: loaded support on port[0] = 21 [ 30.557751] IPVS: ftp: loaded support on port[0] = 21 [ 30.561039] IPVS: ftp: loaded support on port[0] = 21 [ 30.570112] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 [ 30.592587] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 30.698635] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 [ 30.737731] IPVS: ftp: loaded support on port[0] = 21 [ 30.745462] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed [ 30.828487] IPVS: ftp: loaded support on port[0] = 21 [ 30.835623] IPVS: ftp: loaded support on port[0] = 21 [ 30.862930] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 [ 30.878731] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 [ 30.937361] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed [ 30.996969] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 [ 31.039813] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 31.072969] IPVS: ftp: loaded support on port[0] = 21 [ 31.084927] IPVS: ftp: loaded support on port[0] = 21 [ 31.104360] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 31.146626] IPVS: ftp: loaded support on port[0] = 21 [ 31.154704] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 31.221615] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed [ 31.302270] IPVS: ftp: loaded support on port[0] = 21 [ 31.333637] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed [ 31.356772] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 31.396367] IPVS: ftp: loaded support on port[0] = 21 [ 31.410725] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed [ 31.478540] IPVS: ftp: loaded support on port[0] = 21 [ 31.492205] IPVS: ftp: loaded support on port[0] = 21 [ 31.514338] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 [ 31.552398] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed [ 31.612106] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed [ 31.704662] IPVS: ftp: loaded support on port[0] = 21 [ 31.708670] IPVS: ftp: loaded support on port[0] = 21 [ 31.740544] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed [ 31.829820] IPVS: ftp: loaded support on port[0] = 21 [ 31.837988] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 [ 31.933913] IPVS: ftp: loaded support on port[0] = 21 [ 31.941635] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 [ 32.087180] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 result: failed=false hanged=false err=executor 3: failed to write control pipe: write |1: broken pipe lstat(./0/file0) failed (errno 107) loop exited with status 69 (errno 0) RESULT: no calls executed RESULT: no calls executed [ 32.245964] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed [ 32.281192] IPVS: ftp: loaded support on port[0] = 21 [ 32.284623] IPVS: ftp: loaded support on port[0] = 21 [ 32.296933] IPVS: ftp: loaded support on port[0] = 21 [ 32.308534] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed [ 32.392311] IPVS: ftp: loaded support on port[0] = 21 [ 32.400667] IPVS: ftp: loaded support on port[0] = 21 [ 32.443811] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed result: failed=false hanged=false err=executor 3: failed to write control pipe: write |1: broken pipe lstat(./0/file0) failed (errno 107) loop exited with status 69 (errno 0) RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed [ 32.808424] IPVS: ftp: loaded support on port[0] = 21 [ 32.833736] IPVS: ftp: loaded support on port[0] = 21 [ 32.839826] IPVS: ftp: loaded support on port[0] = 21 [ 32.846246] IPVS: ftp: loaded support on port[0] = 21 [ 32.853657] IPVS: ftp: loaded support on port[0] = 21 [ 32.861819] IPVS: ftp: loaded support on port[0] = 21 [ 32.887508] IPVS: ftp: loaded support on port[0] = 21 [ 32.892992] IPVS: ftp: loaded support on port[0] = 21 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 RESULT: signal 0, coverage 0 errno 0 result: failed=false hanged=false err=executor 1: failed to write control pipe: write |1: broken pipe lstat(./0/file0) failed (errno 107) loop exited with status 69 (errno 0) RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 [ 33.259955] IPVS: ftp: loaded support on port[0] = 21 RESULT: no calls executed RESULT: signal 0, coverage 0 errno 0 RESULT: no calls executed RESULT: no calls executed RESULT: no calls executed [ 33.341329] IPVS: ftp: loaded support on port[0] = 21 [ 33.365115] IPVS: ftp: loaded support on port[0] = 21 [ 33.383571] IPVS: ftp: loaded support on port[0] = 21 [ 33.386253] IPVS: ftp: loaded support on port[0] = 21 [ 33.403119] IPVS: ftp: loaded support on port[0] = 21 [ 33.413102] IPVS: ftp: loaded support on port[0] = 21 [ 33.431276] IPVS: ftp: loaded support on port[0] = 21 [ 33.475953] WARNING: CPU: 0 PID: 180 at net/ipv6/xfrm6_tunnel.c:345 xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.485512] Kernel panic - not syncing: panic_on_warn set ... [ 33.485512] [ 33.492882] CPU: 0 PID: 180 Comm: kworker/u4:4 Not tainted 4.16.0+ #2 [ 33.499454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.508812] Workqueue: netns cleanup_net [ 33.512869] Call Trace: [ 33.515463] dump_stack+0x1b9/0x29f [ 33.519093] ? arch_local_irq_restore+0x52/0x52 [ 33.523771] ? xfrm6_tunnel_net_exit+0x1f0/0x4f0 [ 33.528525] panic+0x22f/0x4de [ 33.531717] ? add_taint.cold.5+0x16/0x16 [ 33.535868] ? __warn.cold.8+0x148/0x1a3 [ 33.539926] ? __warn.cold.8+0x117/0x1a3 [ 33.543987] ? xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.548749] __warn.cold.8+0x163/0x1a3 [ 33.552639] ? xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.557394] report_bug+0x252/0x2d0 [ 33.561033] do_error_trap+0x1bc/0x470 [ 33.564930] ? math_error+0x3f0/0x3f0 [ 33.568731] ? find_held_lock+0x36/0x1c0 [ 33.572801] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.577651] do_invalid_op+0x1b/0x20 [ 33.581366] invalid_op+0x1b/0x40 [ 33.584819] RIP: 0010:xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.590172] RSP: 0018:ffff8801d96373d8 EFLAGS: 00010293 [ 33.595532] RAX: ffff8801d961c080 RBX: ffff8801b0e999a0 RCX: ffffffff866b08c6 [ 33.602797] RDX: 0000000000000000 RSI: ffffffff866b08d0 RDI: 0000000000000007 [ 33.610063] RBP: ffff8801d96374f8 R08: ffff8801d961c080 R09: ffffed003b6046c2 [ 33.617328] R10: 0000000000000003 R11: 0000000000000003 R12: 000000000000007c [ 33.624590] R13: ffffed003b2c6e82 R14: ffff8801d96374d0 R15: ffff8801b6185f80 [ 33.631868] ? xfrm6_tunnel_net_exit+0x2b6/0x4f0 [ 33.636628] ? xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.641388] ? xfrm6_tunnel_net_exit+0x2c0/0x4f0 [ 33.646146] ? xfrm6_tunnel_alloc_spi+0xe20/0xe20 [ 33.650986] ? xt_proto_fini+0x279/0x330 [ 33.655049] ? xt_proto_init+0x840/0x840 [ 33.659108] ? ip_set_udel+0x635/0xd70 [ 33.663003] ? ip6t_unregister_table+0x70/0x70 [ 33.667585] ? xfrm6_tunnel_alloc_spi+0xe20/0xe20 [ 33.672434] ops_exit_list.isra.7+0xb0/0x160 [ 33.676848] cleanup_net+0x51d/0xb20 [ 33.680561] ? lock_downgrade+0x8e0/0x8e0 [ 33.684710] ? peernet2id_alloc+0x3e0/0x3e0 [ 33.689031] ? find_held_lock+0x36/0x1c0 [ 33.693096] ? graph_lock+0x170/0x170 [ 33.696893] ? lock_acquire+0x1dc/0x520 [ 33.700864] ? process_one_work+0xb46/0x1b50 [ 33.705271] ? _raw_spin_unlock_irqrestore+0x63/0xc0 [ 33.710369] ? __lock_is_held+0xb5/0x140 [ 33.714422] process_one_work+0xc1e/0x1b50 [ 33.718637] ? finish_task_switch+0x182/0x820 [ 33.723119] ? pwq_dec_nr_in_flight+0x490/0x490 [ 33.727773] ? __schedule+0x80f/0x1e40 [ 33.731646] ? pick_next_task_fair+0x97f/0x1670 [ 33.736295] ? graph_lock+0x170/0x170 [ 33.740075] ? find_held_lock+0x36/0x1c0 [ 33.744127] ? find_held_lock+0x36/0x1c0 [ 33.748169] ? lock_acquire+0x1dc/0x520 [ 33.752123] ? worker_thread+0x41f/0x1440 [ 33.756250] ? lock_downgrade+0x8e0/0x8e0 [ 33.760380] ? lock_release+0xa10/0xa10 [ 33.764335] ? kasan_check_read+0x11/0x20 [ 33.768462] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 33.773037] worker_thread+0x1cc/0x1440 [ 33.777017] ? process_one_work+0x1b50/0x1b50 [ 33.781514] ? graph_lock+0x170/0x170 [ 33.785299] ? find_held_lock+0x36/0x1c0 [ 33.789355] ? find_held_lock+0x36/0x1c0 [ 33.793416] ? schedule+0xef/0x430 [ 33.796938] ? __schedule+0x1e40/0x1e40 [ 33.800891] ? do_raw_spin_unlock+0x9e/0x2e0 [ 33.805278] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 33.809844] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 33.814933] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.819930] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 33.825448] ? __kthread_parkme+0x1b7/0x280 [ 33.829752] kthread+0x345/0x410 [ 33.833098] ? process_one_work+0x1b50/0x1b50 [ 33.837572] ? kthread_bind+0x40/0x40 [ 33.841356] ret_from_fork+0x3a/0x50 [ 33.845808] Dumping ftrace buffer: [ 33.849516] (ftrace buffer empty) [ 33.853201] Kernel Offset: disabled [ 33.856807] Rebooting in 86400 seconds..