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 '10.128.0.27' (ECDSA) to the list of known hosts. 2018/03/25 15:42:45 parsed 1 programs 2018/03/25 15:42:45 executed programs: 0 syzkaller login: [ 24.397494] IPVS: ftp: loaded support on port[0] = 21 [ 24.428295] IPVS: ftp: loaded support on port[0] = 21 [ 24.451230] kasan: CONFIG_KASAN_INLINE enabled [ 24.456037] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.463386] kasan: CONFIG_KASAN_INLINE enabled [ 24.463388] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.463395] general protection fault: 0000 [#1] SMP KASAN [ 24.463400] Dumping ftrace buffer: [ 24.463403] (ftrace buffer empty) [ 24.463404] Modules linked in: [ 24.463411] CPU: 0 PID: 4170 Comm: syz-executor0 Not tainted 4.16.0-rc6+ #1 [ 24.463417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.463433] RIP: 0010:__lock_acquire+0x209/0x3e00 [ 24.463435] RSP: 0018:ffff8801db206f60 EFLAGS: 00010002 [ 24.463439] RAX: 078e0401078e0401 RBX: 0000000000000000 RCX: 0000000000000000 [ 24.463441] RDX: 1ffff100389fe583 RSI: 0000000000000000 RDI: ffff8801c4ff2c18 [ 24.463444] RBP: ffff8801db2072f0 R08: ffffffff814d839c R09: 0000000000000001 [ 24.463446] R10: 0000000000000000 R11: ffff8801c4ff2c10 R12: 0000000000000000 [ 24.463448] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801b793c440 [ 24.463452] FS: 00000000014fa940(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 24.463454] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.463457] CR2: 00000000004cb4e0 CR3: 00000001b7980002 CR4: 00000000001606f0 [ 24.463462] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.463464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.463466] Call Trace: [ 24.463468] [ 24.463473] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.463479] ? lock_downgrade+0x980/0x980 [ 24.463485] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.463491] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 24.463496] ? update_load_avg+0x249/0x2d80 [ 24.463499] ? rcu_read_unlock+0x35/0x70 [ 24.463503] ? update_curr+0x415/0x9a0 [ 24.463507] ? update_cfs_rq_load_avg.part.68+0x2d0/0x2d0 [ 24.463514] ? task_prio+0x50/0x50 [ 24.463518] ? print_irqtrace_events+0x270/0x270 [ 24.463522] ? trace_hardirqs_off+0x10/0x10 [ 24.463526] ? print_irqtrace_events+0x270/0x270 [ 24.463531] ? print_irqtrace_events+0x270/0x270 [ 24.463535] ? print_irqtrace_events+0x270/0x270 [ 24.463539] ? trace_hardirqs_off+0x10/0x10 [ 24.463543] ? find_held_lock+0x35/0x1d0 [ 24.463548] ? __lock_acquire+0x664/0x3e00 [ 24.463553] ? print_irqtrace_events+0x270/0x270 [ 24.463557] ? print_irqtrace_events+0x270/0x270 [ 24.463563] lock_acquire+0x1d5/0x580 [ 24.463566] ? lock_acquire+0x1d5/0x580 [ 24.463570] ? try_to_wake_up+0xbc/0x15f0 [ 24.463575] ? lock_release+0xa40/0xa40 [ 24.463579] ? __lock_acquire+0x664/0x3e00 [ 24.463583] ? __lock_acquire+0x664/0x3e00 [ 24.463589] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.463593] ? update_cfs_rq_load_avg.part.68+0x23d/0x2d0 [ 24.463604] _raw_spin_lock_irqsave+0x96/0xc0 [ 24.463607] ? try_to_wake_up+0xbc/0x15f0 [ 24.463611] try_to_wake_up+0xbc/0x15f0 [ 24.463615] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.463619] ? print_irqtrace_events+0x270/0x270 [ 24.463622] ? __lock_acquire+0x664/0x3e00 [ 24.463627] ? migrate_swap_stop+0x970/0x970 [ 24.463632] ? rcu_lockdep_current_cpu_online+0x190/0x190 [ 24.463637] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.463642] ? __lock_acquire+0x664/0x3e00 [ 24.463646] ? find_held_lock+0x35/0x1d0 [ 24.463653] ? notifier_call_chain+0x136/0x2c0 [ 24.463657] ? lock_downgrade+0x980/0x980 [ 24.463662] default_wake_function+0x30/0x50 [ 24.463665] autoremove_wake_function+0x78/0x350 [ 24.463669] ? prepare_to_wait+0x4d0/0x4d0 [ 24.463673] ? trace_hardirqs_off+0x10/0x10 [ 24.463678] ? lock_acquire+0x1d5/0x580 [ 24.463682] ? lock_acquire+0x1d5/0x580 [ 24.463686] __wake_up_common+0x18e/0x780 [ 24.463690] ? do_wait_intr_irq+0x3e0/0x3e0 [ 24.463695] ? __lock_is_held+0xb6/0x140 [ 24.463700] __wake_up_common_lock+0x1b4/0x310 [ 24.463704] ? __wake_up_common+0x780/0x780 [ 24.463708] ? rcu_cpu_stall_reset+0x260/0x260 [ 24.463713] ? trace_hardirqs_off+0xd/0x10 [ 24.463717] ? raise_softirq+0x325/0x490 [ 24.463721] __wake_up+0xe/0x10 [ 24.463726] wake_up_klogd_work_func+0x4a/0x70 [ 24.463733] irq_work_run_list+0x184/0x240 [ 24.463737] ? irq_work_sync+0x1a0/0x1a0 [ 24.463744] ? run_local_timers+0x14c/0x1b0 [ 24.463748] irq_work_tick+0x136/0x1a0 [ 24.463752] ? irq_work_needs_cpu+0x280/0x280 [ 24.463755] ? get_monotonic_coarse64+0x470/0x470 [ 24.463761] update_process_times+0x48/0x60 [ 24.463766] tick_sched_handle+0x85/0x160 [ 24.463770] tick_sched_timer+0x42/0x120 [ 24.463774] __hrtimer_run_queues+0x39c/0xec0 [ 24.463779] ? tick_sched_do_timer+0xe0/0xe0 [ 24.463783] ? hrtimer_fixup_init+0x70/0x70 [ 24.463791] ? pvclock_read_flags+0x160/0x160 [ 24.463795] ? lock_acquire+0x1d5/0x580 [ 24.463798] ? ktime_get+0x26f/0x3a0 [ 24.463802] ? kvm_clock_get_cycles+0x25/0x30 [ 24.463806] ? ktime_get_update_offsets_now+0x34a/0x520 [ 24.463810] ? do_timer+0x50/0x50 [ 24.463814] ? native_apic_msr_write+0x5c/0x80 [ 24.463818] ? rcu_idle_enter+0x530/0x530 [ 24.463823] ? lapic_next_event+0x54/0x80 [ 24.463829] hrtimer_interrupt+0x2a5/0x6f0 [ 24.463837] smp_apic_timer_interrupt+0x14a/0x700 [ 24.463840] ? smp_reschedule_interrupt+0xe6/0x650 [ 24.463845] ? smp_call_function_single_interrupt+0x640/0x640 [ 24.463848] ? _raw_spin_lock+0x32/0x40 [ 24.463852] ? _raw_spin_unlock+0x22/0x30 [ 24.463856] ? handle_edge_irq+0x2b4/0x7c0 [ 24.463860] ? task_prio+0x50/0x50 [ 24.463867] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.463872] apic_timer_interrupt+0xf/0x20 [ 24.463874] [ 24.463877] RIP: 0010:console_unlock+0xb18/0xfb0 [ 24.463879] RSP: 0018:ffff8801b79068d8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff12 [ 24.463883] RAX: ffff8801b793c440 RBX: 0000000000000200 RCX: ffffffff815a8d6f [ 24.463885] RDX: 0000000000000000 RSI: 1ffff10036f279af RDI: 0000000000000293 [ 24.463887] RBP: ffff8801b7906a40 R08: 1ffff10036f20ce9 R09: 0000000000000000 [ 24.463889] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.463891] R13: 0000000000000000 R14: ffffffff83ba15e0 R15: dffffc0000000000 [ 24.463897] ? netconsole_netdev_event+0x2b0/0x2b0 [ 24.463901] ? console_unlock+0xb0f/0xfb0 [ 24.463908] ? wake_up_klogd+0x100/0x100 [ 24.463911] ? kvm_clock_get_cycles+0x10/0x30 [ 24.463916] ? __down_trylock_console_sem+0xb9/0x1e0 [ 24.463918] ? vprintk_emit+0x5b5/0xb90 [ 24.463922] ? vprintk_emit+0x5b5/0xb90 [ 24.463926] ? __down_trylock_console_sem+0x10d/0x1e0 [ 24.463930] vprintk_emit+0x5c3/0xb90 [ 24.463934] ? console_unlock+0xfb0/0xfb0 [ 24.463938] ? print_irqtrace_events+0x270/0x270 [ 24.463942] ? lock_downgrade+0x980/0x980 [ 24.463947] ? find_held_lock+0x35/0x1d0 [ 24.463953] ? is_bpf_text_address+0x7b/0x120 [ 24.463957] vprintk_default+0x28/0x30 [ 24.463961] vprintk_func+0x57/0xc0 [ 24.463964] printk+0xaa/0xca [ 24.463967] ? show_regs_print_info+0x18/0x18 [ 24.463972] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 24.463979] kasan_die_handler+0x3d/0x3f [ 24.463983] notifier_call_chain+0x136/0x2c0 [ 24.463988] ? raw_notifier_chain_unregister+0x1b0/0x1b0 [ 24.463992] ? print_irqtrace_events+0x270/0x270 [ 24.463997] ? rcutorture_record_progress+0x10/0x10 [ 24.464002] atomic_notifier_call_chain+0x77/0x140 [ 24.464007] notify_die+0x18c/0x280 [ 24.464013] ? atomic_notifier_call_chain+0x140/0x140 [ 24.464018] ? search_exception_tables+0x47/0x50 [ 24.464024] do_general_protection+0x331/0x3e0 [ 24.464028] general_protection+0x25/0x50 [ 24.464034] RIP: 0010:find_entry.isra.14+0x9f/0x1d0 [ 24.464036] RSP: 0018:ffff8801b7906fc8 EFLAGS: 00010202 [ 24.464039] RAX: 00f1c08020f1c080 RBX: ffff8801c4f95058 RCX: ffffffff81d29eae [ 24.464041] RDX: 0000000000000000 RSI: ffff8801b8991678 RDI: ffff8801c4f95070 [ 24.464043] RBP: ffff8801b7907008 R08: 1ffff10036f20d55 R09: 0000000000000004 [ 24.464045] R10: ffff8801b7906f70 R11: 0000000000000000 R12: ffff8801b89915f8 [ 24.464047] R13: dffffc0000000000 R14: 078e0401078e0401 R15: ffff8801b8991678 [ 24.464052] ? find_entry.isra.14+0x7e/0x1d0 [ 24.464057] ? find_entry.isra.14+0x7e/0x1d0 [ 24.464061] find_subdir+0xa8/0x170 [ 24.464065] ? find_entry.isra.14+0x1d0/0x1d0 [ 24.464072] __register_sysctl_table+0x6d5/0x10b0 [ 24.464079] register_net_sysctl+0x29/0x30 [ 24.464087] mpls_dev_sysctl_register+0x1cf/0x2e0 [ 24.464092] ? mpls_dev_sysctl_unregister+0xc0/0xc0 [ 24.464099] ? rtnl_kfree_skbs+0x70/0x70 [ 24.464107] ? find_next_bit+0xcc/0x100 [ 24.464112] mpls_dev_notify+0x2af/0x980 [ 24.464116] ? mpls_forward+0x1e80/0x1e80 [ 24.464123] ? packet_notifier+0x5cb/0x950 [ 24.464131] ? ovs_netdev_get_vport+0x11a/0x1b0 [ 24.464135] ? ovs_netdev_tunnel_destroy+0x1d0/0x1d0 [ 24.464139] ? packet_recvmsg+0x17a0/0x17a0 [ 24.464145] ? lowpan_event+0xef/0x340 [ 24.464149] ? addrconf_ifid_802154_6lowpan+0x380/0x380 [ 24.464153] ? dp_device_event+0x8f/0x3a0 [ 24.464157] ? ovs_vport_cmd_build_info+0xa0/0xa0 [ 24.464163] notifier_call_chain+0x136/0x2c0 [ 24.464168] ? raw_notifier_chain_unregister+0x1b0/0x1b0 [ 24.464174] ? crng_fast_load+0x350/0x350 [ 24.464182] ? dev_qdisc_change_tx_queue_len+0x2d0/0x2d0 [ 24.464186] ? rtnl_is_locked+0x54/0xb0 [ 24.464189] ? rtnl_kfree_skbs+0x70/0x70 [ 24.464196] ? pm_runtime_set_memalloc_noio+0xfe/0x130 [ 24.464200] raw_notifier_call_chain+0x2d/0x40 [ 24.464206] call_netdevice_notifiers_info+0x32/0x70 [ 24.464210] register_netdevice+0xd40/0x1020 [ 24.464214] ? netdev_change_features+0x100/0x100 [ 24.464219] ? __lock_is_held+0xb6/0x140 [ 24.464224] register_netdev+0x1a/0x30 [ 24.464230] sit_init_net+0x384/0xa70 [ 24.464234] ? __lock_is_held+0xb6/0x140 [ 24.464238] ? ipip6_rcv+0x1c90/0x1c90 [ 24.464244] ? __lock_is_held+0xb6/0x140 [ 24.464249] ? ipip6_rcv+0x1c90/0x1c90 [ 24.464253] ops_init+0x10a/0x570 [ 24.464257] ? mark_held_locks+0xaf/0x100 [ 24.464260] ? net_alloc_generic+0x70/0x70 [ 24.464264] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.464268] ? __lockdep_init_map+0xe4/0x650 [ 24.464272] ? lock_downgrade+0x980/0x980 [ 24.464276] ? lockdep_init_map+0x9/0x10 [ 24.464280] setup_net+0x351/0x760 [ 24.464283] ? ops_init+0x570/0x570 [ 24.464287] ? check_same_owner+0x320/0x320 [ 24.464291] ? rcu_pm_notify+0xc0/0xc0 [ 24.464294] ? copy_net_ns+0x152/0x580 [ 24.464301] ? kmem_cache_alloc+0x466/0x760 [ 24.464306] copy_net_ns+0x238/0x580 [ 24.464310] ? net_drop_ns+0x30/0x30 [ 24.464315] ? do_mount+0x2bb0/0x2bb0 [ 24.464320] ? perf_event_namespaces+0x108/0x3c0 [ 24.464325] create_new_namespaces+0x425/0x880 [ 24.464330] ? sys_ni_syscall+0x20/0x20 [ 24.464336] ? ns_capable_common+0xcf/0x160 [ 24.464341] unshare_nsproxy_namespaces+0xae/0x1e0 [ 24.464346] SyS_unshare+0x653/0xfa0 [ 24.464351] ? walk_process_tree+0x400/0x400 [ 24.464354] ? lock_downgrade+0x980/0x980 [ 24.464359] ? lock_release+0xa40/0xa40 [ 24.464362] ? check_same_owner+0x320/0x320 [ 24.464368] ? file_path+0x30/0x30 [ 24.464372] ? do_raw_spin_trylock+0x190/0x190 [ 24.464377] ? _raw_read_unlock+0x22/0x30 [ 24.464382] ? do_prlimit+0x2a0/0x810 [ 24.464387] ? SyS_setrlimit+0x93/0xd0 [ 24.464390] ? SyS_prlimit64+0xc20/0xc20 [ 24.464394] ? trace_hardirqs_on+0xd/0x10 [ 24.464397] ? do_syscall_64+0xb7/0x940 [ 24.464401] ? walk_process_tree+0x400/0x400 [ 24.464405] do_syscall_64+0x281/0x940 [ 24.464408] ? __do_page_fault+0xc90/0xc90 [ 24.464412] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.464419] ? syscall_return_slowpath+0x550/0x550 [ 24.464423] ? syscall_return_slowpath+0x2ac/0x550 [ 24.464427] ? prepare_exit_to_usermode+0x350/0x350 [ 24.464431] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 24.464436] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.464441] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.464444] RIP: 0033:0x457327 [ 24.464446] RSP: 002b:00007ffdd0bf1928 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 24.464449] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000457327 [ 24.464452] RDX: 0000000000000000 RSI: 00007ffdd0bf1900 RDI: 0000000040000000 [ 24.464453] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 24.464455] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000410710 [ 24.464457] R13: 00000000004107a0 R14: 0000000000000000 R15: 0000000000000000 [ 24.464461] Code: 48 85 c0 4c 8b 9d e8 fc ff ff 8b 8d e0 fc ff ff 44 8b 8d d8 fc ff ff 4c 8b 85 d0 fc ff ff 44 8b 95 c8 fc ff ff 0f 84 9b 07 00 00 ff 80 38 01 00 00 49 8d bf 70 08 00 00 48 ba 00 00 00 00 00 [ 24.464525] RIP: __lock_acquire+0x209/0x3e00 RSP: ffff8801db206f60 [ 24.464532] ---[ end trace b962f2b4a8ee2930 ]--- [ 24.464534] Kernel panic - not syncing: Fatal exception in interrupt [ 24.465031] Dumping ftrace buffer: [ 24.465032] (ftrace buffer empty) [ 24.465035] Kernel Offset: disabled [ 25.651836] Rebooting in 86400 seconds..