[ 67.180857][ T26] audit: type=1800 audit(1568416003.112:27): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 67.201244][ T26] audit: type=1800 audit(1568416003.122:28): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 67.906019][ T26] audit: type=1800 audit(1568416003.902:29): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 67.927031][ T26] audit: type=1800 audit(1568416003.902:30): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.249' (ECDSA) to the list of known hosts. syzkaller login: [ 243.291001][ T9812] IPVS: ftp: loaded support on port[0] = 21 [ 243.339711][ T9812] chnl_net:caif_netlink_parms(): no params data found [ 243.361743][ T9812] bridge0: port 1(bridge_slave_0) entered blocking state [ 243.369197][ T9812] bridge0: port 1(bridge_slave_0) entered disabled state [ 243.377078][ T9812] device bridge_slave_0 entered promiscuous mode [ 243.384269][ T9812] bridge0: port 2(bridge_slave_1) entered blocking state [ 243.391415][ T9812] bridge0: port 2(bridge_slave_1) entered disabled state [ 243.402621][ T9812] device bridge_slave_1 entered promiscuous mode [ 243.416539][ T9812] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 243.426863][ T9812] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 243.442670][ T9812] team0: Port device team_slave_0 added [ 243.449595][ T9812] team0: Port device team_slave_1 added [ 243.528073][ T9812] device hsr_slave_0 entered promiscuous mode [ 243.596865][ T9812] device hsr_slave_1 entered promiscuous mode [ 243.661834][ T9812] bridge0: port 2(bridge_slave_1) entered blocking state [ 243.669024][ T9812] bridge0: port 2(bridge_slave_1) entered forwarding state [ 243.676284][ T9812] bridge0: port 1(bridge_slave_0) entered blocking state [ 243.683394][ T9812] bridge0: port 1(bridge_slave_0) entered forwarding state [ 243.707832][ T9812] 8021q: adding VLAN 0 to HW filter on device bond0 [ 243.719145][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 243.727899][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 243.735484][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 243.743449][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 243.753191][ T9812] 8021q: adding VLAN 0 to HW filter on device team0 [ 243.762975][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 243.771494][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 243.778644][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 243.788267][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 243.796834][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 243.803907][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 243.818427][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 243.827431][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 243.838372][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 243.851510][ T9812] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network executing program [ 243.862759][ T9812] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 243.874133][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 243.882530][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 243.890910][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 243.904422][ T9812] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 348.996418][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 349.003516][ C1] rcu: 1-...!: (10500 ticks this GP) idle=db2/0/0x3 softirq=9692/9692 fqs=0 [ 349.012338][ C1] (t=10500 jiffies g=9349 q=31) [ 349.017257][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g9349 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 349.028503][ C1] rcu: RCU grace-period kthread stack dump: [ 349.034377][ C1] rcu_preempt I29392 10 2 0x80004000 [ 349.040691][ C1] Call Trace: [ 349.044233][ C1] __schedule+0x755/0x1580 [ 349.048640][ C1] ? __sched_text_start+0x8/0x8 [ 349.053516][ C1] schedule+0xd9/0x260 [ 349.057564][ C1] schedule_timeout+0x486/0xc50 [ 349.062405][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 349.067321][ C1] ? usleep_range+0x170/0x170 [ 349.072051][ C1] ? trace_hardirqs_on+0x67/0x240 [ 349.077059][ C1] ? __kasan_check_read+0x11/0x20 [ 349.082604][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 349.088131][ C1] ? swake_up_one+0x60/0x60 [ 349.092613][ C1] ? trace_hardirqs_on+0x67/0x240 [ 349.097623][ C1] rcu_gp_kthread+0x9b2/0x18c0 [ 349.102378][ C1] ? rcu_barrier+0x310/0x310 [ 349.106943][ C1] ? trace_hardirqs_on+0x67/0x240 [ 349.111947][ C1] ? __kasan_check_read+0x11/0x20 [ 349.116953][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 349.123179][ C1] ? __kthread_parkme+0x108/0x1c0 [ 349.128208][ C1] ? __kasan_check_read+0x11/0x20 [ 349.133394][ C1] kthread+0x361/0x430 [ 349.137473][ C1] ? rcu_barrier+0x310/0x310 [ 349.142052][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 349.149235][ C1] ret_from_fork+0x24/0x30 [ 349.153670][ C1] NMI backtrace for cpu 1 [ 349.158071][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8+ #0 [ 349.165152][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 349.175193][ C1] Call Trace: [ 349.178457][ C1] [ 349.181354][ C1] dump_stack+0x172/0x1f0 [ 349.185755][ C1] nmi_cpu_backtrace.cold+0x70/0xb2 [ 349.190935][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 349.197190][ C1] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 349.202814][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 349.208779][ C1] arch_trigger_cpumask_backtrace+0x14/0x20 [ 349.214673][ C1] rcu_dump_cpu_stacks+0x183/0x1cf [ 349.219783][ C1] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 349.225483][ C1] ? raise_softirq+0x138/0x340 [ 349.230263][ C1] update_process_times+0x32/0x80 [ 349.235296][ C1] tick_sched_handle+0xa2/0x190 [ 349.240134][ C1] tick_sched_timer+0x53/0x140 [ 349.244888][ C1] __hrtimer_run_queues+0x364/0xe40 [ 349.250077][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 349.255525][ C1] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 349.261057][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 349.266767][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 349.272829][ C1] hrtimer_interrupt+0x314/0x770 [ 349.277826][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 349.283449][ C1] apic_timer_interrupt+0xf/0x20 [ 349.288435][ C1] RIP: 0010:hhf_dequeue+0x58/0xa20 [ 349.293533][ C1] Code: 48 c1 e8 03 4c 01 e0 48 89 45 c0 49 8d 85 90 03 00 00 48 89 45 c8 48 c1 e8 03 48 89 45 b8 e8 2f 0a ac fb 48 8b 45 c0 80 38 00 <0f> 85 a8 07 00 00 48 8b 75 d0 49 8b 85 80 03 00 00 49 89 f6 48 39 [ 349.313234][ C1] RSP: 0018:ffff8880ae9095c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 349.321647][ C1] RAX: ffffed1012256bd8 RBX: ffff8880912b5e38 RCX: ffffffff85c670f9 [ 349.329596][ C1] RDX: 0000000000000100 RSI: ffffffff85c66ad1 RDI: ffff8880912b5e40 [ 349.337546][ C1] RBP: ffff8880ae909618 R08: ffff8880a98c6340 R09: 0000000000000000 [ 349.345595][ C1] R10: fffffbfff134afaf R11: ffff8880a98c6340 R12: dffffc0000000000 [ 349.353560][ C1] R13: ffff8880912b5b40 R14: ffff8880912b5ed8 R15: ffff8880912b5ed0 [ 349.361548][ C1] ? apic_timer_interrupt+0xa/0x20 [ 349.366645][ C1] ? hhf_dequeue+0x679/0xa20 [ 349.371225][ C1] ? hhf_dequeue+0x51/0xa20 [ 349.375708][ C1] ? hhf_dequeue+0x51/0xa20 [ 349.380270][ C1] __qdisc_run+0x1e7/0x19d0 [ 349.384827][ C1] ? dev_queue_xmit+0x18/0x20 [ 349.389498][ C1] __dev_queue_xmit+0x16f1/0x3650 [ 349.394514][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 349.399818][ C1] ? __ip6_finish_output+0x444/0xa50 [ 349.405111][ C1] ? ipv6_chk_mcast_addr+0x315/0x6f0 [ 349.410388][ C1] ? lock_downgrade+0x920/0x920 [ 349.415220][ C1] ? lock_acquire+0x190/0x410 [ 349.419884][ C1] ? __ip6_finish_output+0x444/0xa50 [ 349.425147][ C1] dev_queue_xmit+0x18/0x20 [ 349.429633][ C1] ? dev_queue_xmit+0x18/0x20 [ 349.434286][ C1] ip6_finish_output2+0xf58/0x2520 [ 349.439377][ C1] ? ip6_forward_finish+0x530/0x530 [ 349.444599][ C1] ? ip6_mtu+0x16f/0x460 [ 349.448829][ C1] __ip6_finish_output+0x444/0xa50 [ 349.453917][ C1] ? __ip6_finish_output+0x444/0xa50 [ 349.459184][ C1] ip6_finish_output+0x38/0x1f0 [ 349.464015][ C1] ip6_output+0x235/0x7c0 [ 349.468331][ C1] ? ip6_finish_output+0x1f0/0x1f0 [ 349.473436][ C1] ? __ip6_finish_output+0xa50/0xa50 [ 349.478697][ C1] ? icmp6_dst_alloc+0x432/0x660 [ 349.483613][ C1] mld_sendpack+0x9c7/0xea0 [ 349.488106][ C1] ? nf_hook.constprop.0+0x560/0x560 [ 349.493375][ C1] ? mld_ifc_timer_expire+0x437/0x8a0 [ 349.498727][ C1] ? __local_bh_enable_ip+0x15a/0x270 [ 349.504079][ C1] mld_ifc_timer_expire+0x449/0x8a0 [ 349.509294][ C1] call_timer_fn+0x1ac/0x780 [ 349.513873][ C1] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 349.519308][ C1] ? msleep_interruptible+0x150/0x150 [ 349.524659][ C1] ? trace_hardirqs_on+0x67/0x240 [ 349.529662][ C1] ? __kasan_check_read+0x11/0x20 [ 349.534668][ C1] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 349.540019][ C1] ? mld_dad_timer_expire+0x1c0/0x1c0 [ 349.545367][ C1] run_timer_softirq+0x697/0x17a0 [ 349.550370][ C1] ? add_timer+0x930/0x930 [ 349.554763][ C1] ? kvm_clock_read+0x18/0x30 [ 349.559418][ C1] ? kvm_sched_clock_read+0x9/0x20 [ 349.564607][ C1] ? sched_clock+0x2e/0x50 [ 349.569004][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 349.573831][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 349.580049][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 349.586266][ C1] __do_softirq+0x262/0x98c [ 349.590748][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 349.595581][ C1] irq_exit+0x19b/0x1e0 [ 349.599720][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 349.605244][ C1] apic_timer_interrupt+0xf/0x20 [ 349.610157][ C1] [ 349.613082][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 349.618435][ C1] Code: 88 63 6e fa eb 8a 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 24 0b 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 0b 4a 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 2e 23 22 fa e8 f9 [ 349.638048][ C1] RSP: 0018:ffff8880a98dfd68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 349.646441][ C1] RAX: 1ffffffff11a5e8d RBX: ffff8880a98c6340 RCX: 1ffffffff134b5ee [ 349.654391][ C1] RDX: dffffc0000000000 RSI: ffffffff8177f15e RDI: ffffffff873e150c [ 349.662344][ C1] RBP: ffff8880a98dfd98 R08: ffff8880a98c6340 R09: ffffed1015318c69 [ 349.670294][ C1] R10: ffffed1015318c68 R11: ffff8880a98c6347 R12: dffffc0000000000 [ 349.678244][ C1] R13: ffffffff89a57d78 R14: 0000000000000000 R15: 0000000000000001 [ 349.686219][ C1] ? trace_hardirqs_on+0x5e/0x240 [ 349.691236][ C1] ? default_idle+0x1c/0x360 [ 349.695807][ C1] ? default_idle+0x4e/0x360 [ 349.700376][ C1] arch_cpu_idle+0xa/0x10 [ 349.704682][ C1] default_idle_call+0x84/0xb0 [ 349.709424][ C1] do_idle+0x413/0x760 [ 349.713471][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 349.718476][ C1] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 349.724257][ C1] ? complete+0x61/0x80 [ 349.728404][ C1] cpu_startup_entry+0x1b/0x20 [ 349.733145][ C1] start_secondary+0x315/0x430 [ 349.737886][ C1] ? set_cpu_sibling_map+0x2180/0x2180 [ 349.743324][ C1] secondary_startup_64+0xa4/0xb0