Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.680454] audit: type=1800 audit(1568005484.954:33): pid=7286 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 37.703349] audit: type=1800 audit(1568005484.954:34): pid=7286 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.176459] audit: type=1400 audit(1568005488.444:35): avc: denied { map } for pid=7460 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. [ 48.281828] audit: type=1400 audit(1568005495.554:36): avc: denied { map } for pid=7473 comm="syz-executor798" path="/root/syz-executor798244832" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 48.301414] IPVS: ftp: loaded support on port[0] = 21 [ 48.366483] chnl_net:caif_netlink_parms(): no params data found [ 48.397540] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.405159] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.412404] device bridge_slave_0 entered promiscuous mode [ 48.419772] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.426219] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.433338] device bridge_slave_1 entered promiscuous mode [ 48.447923] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.457186] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.473707] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.481435] team0: Port device team_slave_0 added [ 48.486805] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.494126] team0: Port device team_slave_1 added [ 48.499549] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.506816] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.561137] device hsr_slave_0 entered promiscuous mode [ 48.629878] device hsr_slave_1 entered promiscuous mode [ 48.669745] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.676664] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.690561] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.696958] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.703907] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.710292] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.741071] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.747155] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.755648] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.764589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.784248] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.792088] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.799139] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.810311] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.816389] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.825331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.835042] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.841578] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.851607] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.859167] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.865561] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.880141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.888293] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.897535] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.907744] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.918757] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.931306] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready executing program [ 48.937347] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.944978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.957453] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.967683] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 154.009188] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 154.015482] rcu: (detected by 0, t=10502 jiffies, g=4809, q=46) [ 154.021664] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294952518-4294942015), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 154.034310] kworker/0:2 R running task 26784 7075 2 0x80000008 [ 154.041530] Workqueue: ipv6_addrconf addrconf_dad_work [ 154.046823] Call Trace: [ 154.049398] [ 154.051551] sched_show_task.cold+0x2ee/0x35d [ 154.056046] ? set_rq_offline.part.0+0x140/0x140 [ 154.060807] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 154.065816] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 154.071360] rcu_check_callbacks.cold+0xaa1/0xd90 [ 154.076218] update_process_times+0x32/0x80 [ 154.080540] tick_sched_handle+0xa2/0x190 [ 154.084686] tick_sched_timer+0x47/0x130 [ 154.088749] __hrtimer_run_queues+0x33b/0xdc0 [ 154.093246] ? tick_sched_do_timer+0x1b0/0x1b0 [ 154.097829] ? hrtimer_fixup_activate+0x30/0x30 [ 154.102582] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 154.107593] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 154.112962] hrtimer_interrupt+0x314/0x770 [ 154.117206] smp_apic_timer_interrupt+0x111/0x550 [ 154.122051] apic_timer_interrupt+0xf/0x20 [ 154.126536] [ 154.128775] RIP: 0010:native_queued_spin_lock_slowpath+0x113/0x9a0 [ 154.135090] Code: 04 02 00 00 00 00 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 d5 06 00 00 48 83 c4 78 5b 41 5c 41 5d 41 5e 41 5f 5d c3 f3 90 82 8b 45 98 48 8d 55 d8 3d 00 01 00 00 0f 84 a8 02 00 00 30 c0 [ 154.154001] RSP: 0018:ffff88809552f438 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 154.161717] RAX: 0000000000000000 RBX: ffff888093feb7a8 RCX: ffffffff81530ae4 [ 154.168987] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888093feb7a8 [ 154.176253] RBP: ffff88809552f4d8 R08: 1ffff110127fd6f5 R09: ffffed10127fd6f6 [ 154.183518] R10: ffffed10127fd6f5 R11: ffff888093feb7ab R12: 0000000000000001 [ 154.190959] R13: 0000000000000003 R14: ffffed10127fd6f5 R15: 0000000000000001 [ 154.198249] ? native_queued_spin_lock_slowpath+0xa4/0x9a0 [ 154.203877] ? native_queued_spin_lock_slowpath+0xa4/0x9a0 [ 154.209497] ? lockdep_hardirqs_on+0x19b/0x5d0 [ 154.214078] ? .slowpath+0x15/0x15 [ 154.217619] ? lock_acquire+0x16f/0x3f0 [ 154.221619] do_raw_spin_lock+0x19d/0x240 [ 154.225767] _raw_spin_lock+0x37/0x40 [ 154.229566] ? __dev_queue_xmit+0x147c/0x2fe0 [ 154.234057] __dev_queue_xmit+0x147c/0x2fe0 [ 154.238385] ? netdev_pick_tx+0x300/0x300 [ 154.242538] ? ip6_finish_output2+0xac0/0x2550 [ 154.247122] ? find_held_lock+0x35/0x130 [ 154.251182] ? ip6_finish_output2+0xb7f/0x2550 [ 154.256376] ? mark_held_locks+0xb1/0x100 [ 154.260531] dev_queue_xmit+0x18/0x20 [ 154.264339] ? dev_queue_xmit+0x18/0x20 [ 154.268440] neigh_resolve_output+0x5b7/0x980 [ 154.272946] ip6_finish_output2+0xb7f/0x2550 [ 154.277371] ? find_held_lock+0x35/0x130 [ 154.281434] ? ip6_mtu+0x2e6/0x460 [ 154.284976] ? ip6_forward_finish+0x4d0/0x4d0 [ 154.289467] ? lock_downgrade+0x810/0x810 [ 154.293619] ? kasan_check_read+0x11/0x20 [ 154.297772] ip6_finish_output+0x574/0xbe0 [ 154.302003] ? ip6_finish_output+0x574/0xbe0 [ 154.306417] ip6_output+0x235/0x7c0 [ 154.331228] ? ip6_finish_output+0xbe0/0xbe0 [ 154.335658] ? ip6_fragment+0x3770/0x3770 [ 154.339812] ndisc_send_skb+0xf3b/0x1460 [ 154.343880] ? nf_hook.constprop.0+0x560/0x560 [ 154.348468] ? skb_set_owner_w+0x24c/0x360 [ 154.352704] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 154.357724] ndisc_send_ns+0x3a9/0x850 [ 154.361633] ? mark_held_locks+0xb1/0x100 [ 154.365784] ? ndisc_netdev_event+0x470/0x470 [ 154.370278] ? lockdep_hardirqs_on+0x415/0x5d0 [ 154.374955] ? addrconf_dad_work+0xac4/0x1150 [ 154.379451] ? trace_hardirqs_on+0x67/0x220 [ 154.383769] ? addrconf_dad_work+0xac4/0x1150 [ 154.388802] addrconf_dad_work+0xb88/0x1150 [ 154.393127] ? addrconf_dad_completed+0xbb0/0xbb0 [ 154.397980] process_one_work+0x989/0x1750 [ 154.402234] ? pwq_dec_nr_in_flight+0x320/0x320 [ 154.406901] ? lock_acquire+0x16f/0x3f0 [ 154.410890] ? kasan_check_write+0x14/0x20 [ 154.415122] ? do_raw_spin_lock+0xc8/0x240 [ 154.419359] worker_thread+0x98/0xe40 [ 154.423160] ? trace_hardirqs_on+0x67/0x220 [ 154.427493] kthread+0x354/0x420 [ 154.430855] ? process_one_work+0x1750/0x1750 [ 154.435348] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 154.441933] ret_from_fork+0x24/0x30 [ 154.445665] rcu: rcu_preempt kthread starved for 10545 jiffies! g4809 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 154.456138] rcu: RCU grace-period kthread stack dump: [ 154.461322] rcu_preempt R running task 29104 10 2 0x80000000 [ 154.468617] Call Trace: [ 154.471205] __schedule+0x866/0x1dc0 [ 154.474923] ? pci_mmcfg_check_reserved+0x170/0x170 [ 154.479936] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 154.485050] ? lockdep_hardirqs_on+0x415/0x5d0 [ 154.489805] ? trace_hardirqs_on+0x67/0x220 [ 154.494128] schedule+0x92/0x1c0 [ 154.497495] schedule_timeout+0x4db/0xfc0 [ 154.501647] ? usleep_range+0x170/0x170 [ 154.505618] ? trace_hardirqs_on+0x67/0x220 [ 154.509936] ? kasan_check_read+0x11/0x20 [ 154.514104] ? __next_timer_interrupt+0x1a0/0x1a0 [ 154.519125] ? prepare_to_swait_exclusive+0x120/0x120 [ 154.524327] rcu_gp_kthread+0xd5c/0x2190 [ 154.528407] ? rcu_blocking_is_gp+0x90/0x90 [ 154.532726] ? trace_hardirqs_on+0x67/0x220 [ 154.537041] ? kasan_check_read+0x11/0x20 [ 154.541189] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 154.546288] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 154.551826] ? __kthread_parkme+0xfb/0x1b0 [ 154.556149] kthread+0x354/0x420 [ 154.559514] ? rcu_blocking_is_gp+0x90/0x90 [ 154.563832] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 154.569371] ret_from_fork+0x24/0x30