[ 69.274221][ T26] audit: type=1800 audit(1568045519.706:27): pid=9850 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 69.298023][ T26] audit: type=1800 audit(1568045519.706:28): pid=9850 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. [ 69.806507][ T26] audit: type=1800 audit(1568045520.276:29): pid=9850 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 [ 69.839895][ T26] audit: type=1800 audit(1568045520.276:30): pid=9850 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 '10.128.10.42' (ECDSA) to the list of known hosts. syzkaller login: [ 78.161270][T10005] IPVS: ftp: loaded support on port[0] = 21 [ 78.216598][T10005] chnl_net:caif_netlink_parms(): no params data found [ 78.239036][T10005] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.246559][T10005] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.254195][T10005] device bridge_slave_0 entered promiscuous mode [ 78.261998][T10005] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.269625][T10005] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.277225][T10005] device bridge_slave_1 entered promiscuous mode [ 78.291396][T10005] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.301612][T10005] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.317881][T10005] team0: Port device team_slave_0 added [ 78.324773][T10005] team0: Port device team_slave_1 added [ 78.381165][T10005] device hsr_slave_0 entered promiscuous mode [ 78.419688][T10005] device hsr_slave_1 entered promiscuous mode [ 78.464899][T10005] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.472003][T10005] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.479408][T10005] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.486462][T10005] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.511813][T10005] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.523014][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.532039][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.540305][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.547947][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.558075][T10005] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.579621][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.588278][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.595593][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.609596][T10007] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.619748][T10007] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.626899][T10007] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.637026][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.646508][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.661875][T10005] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 78.673899][T10005] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.685810][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.694383][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.702803][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.711082][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 78.725944][T10005] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 183.759242][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 183.765922][ C1] rcu: 1-...!: (1 GPs behind) idle=3c6/0/0x3 softirq=9296/9297 fqs=10 [ 183.774420][ C1] (t=10500 jiffies g=9937 q=157) [ 183.779432][ C1] rcu: rcu_preempt kthread starved for 10471 jiffies! g9937 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 183.790683][ C1] rcu: RCU grace-period kthread stack dump: [ 183.796565][ C1] rcu_preempt I29328 10 2 0x80004000 [ 183.802886][ C1] Call Trace: [ 183.806316][ C1] __schedule+0x755/0x1580 [ 183.810748][ C1] ? __sched_text_start+0x8/0x8 [ 183.815602][ C1] schedule+0xd9/0x260 [ 183.819657][ C1] schedule_timeout+0x486/0xc50 [ 183.824509][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 183.831959][ C1] ? usleep_range+0x170/0x170 [ 183.836729][ C1] ? trace_hardirqs_on+0x67/0x240 [ 183.841736][ C1] ? __kasan_check_read+0x11/0x20 [ 183.846751][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 183.852305][ C1] ? swake_up_one+0x60/0x60 [ 183.856811][ C1] rcu_gp_kthread+0x9b2/0x18c0 [ 183.861713][ C1] ? rcu_barrier+0x310/0x310 [ 183.866315][ C1] ? trace_hardirqs_on+0x67/0x240 [ 183.871337][ C1] ? __kasan_check_read+0x11/0x20 [ 183.876412][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 183.882640][ C1] ? __kthread_parkme+0x108/0x1c0 [ 183.887661][ C1] ? __kasan_check_read+0x11/0x20 [ 183.892951][ C1] kthread+0x361/0x430 [ 183.897014][ C1] ? rcu_barrier+0x310/0x310 [ 183.901587][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 183.907816][ C1] ret_from_fork+0x24/0x30 [ 183.912250][ C1] NMI backtrace for cpu 1 [ 183.916565][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc8 #0 [ 183.923568][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 183.933620][ C1] Call Trace: [ 183.936891][ C1] [ 183.939833][ C1] dump_stack+0x172/0x1f0 [ 183.944162][ C1] nmi_cpu_backtrace.cold+0x70/0xb2 [ 183.949434][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 183.955687][ C1] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 183.961305][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 183.967270][ C1] arch_trigger_cpumask_backtrace+0x14/0x20 [ 183.973241][ C1] rcu_dump_cpu_stacks+0x183/0x1cf [ 183.978347][ C1] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 183.983963][ C1] ? raise_softirq+0x138/0x340 [ 183.988717][ C1] update_process_times+0x32/0x80 [ 183.993726][ C1] tick_sched_handle+0xa2/0x190 [ 183.998562][ C1] tick_sched_timer+0x53/0x140 [ 184.003419][ C1] __hrtimer_run_queues+0x364/0xe40 [ 184.008616][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 184.013985][ C1] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 184.020053][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 184.025851][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 184.032451][ C1] hrtimer_interrupt+0x314/0x770 [ 184.037489][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 184.043136][ C1] apic_timer_interrupt+0xf/0x20 [ 184.048159][ C1] RIP: 0010:hhf_dequeue+0x668/0xa20 [ 184.053542][ C1] Code: 4d 8d b5 98 03 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 0f 85 5b 03 00 00 4d 8b bd 98 03 00 00 48 89 df 48 8b 55 c8 4c 89 fe b3 d9 77 fd 31 ff 89 c6 88 45 b0 e8 37 15 ac fb 0f b6 75 b0 40 [ 184.073223][ C1] RSP: 0018:ffff8880ae909038 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 184.081808][ C1] RAX: 1ffff11014304f43 RBX: ffff8880a1827978 RCX: ffffffff85c66051 [ 184.090109][ C1] RDX: ffff8880a1827a10 RSI: ffff8880a1827a10 RDI: ffff8880a1827978 [ 184.098061][ C1] RBP: ffff8880ae909088 R08: ffff8880a98c6340 R09: 0000000000000000 [ 184.106112][ C1] R10: fffffbfff134afaf R11: ffff8880a98c6340 R12: dffffc0000000000 [ 184.114254][ C1] R13: ffff8880a1827680 R14: ffff8880a1827a18 R15: ffff8880a1827a10 [ 184.122945][ C1] ? apic_timer_interrupt+0xa/0x20 [ 184.128058][ C1] ? hhf_dequeue+0x5d1/0xa20 [ 184.132643][ C1] ? hhf_dequeue+0x63e/0xa20 [ 184.137306][ C1] __qdisc_run+0x1e7/0x19d0 [ 184.141803][ C1] ? dev_queue_xmit+0x18/0x20 [ 184.146565][ C1] __dev_queue_xmit+0x16f1/0x3650 [ 184.151607][ C1] ? __local_bh_enable_ip+0x15a/0x270 [ 184.156963][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 184.162493][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 184.168725][ C1] ? br_nf_post_routing+0xd73/0x1d30 [ 184.174004][ C1] ? br_forward_finish+0x235/0x400 [ 184.179203][ C1] ? __kasan_check_read+0x11/0x20 [ 184.184214][ C1] ? __dev_queue_xmit+0x2b15/0x3650 [ 184.189483][ C1] dev_queue_xmit+0x18/0x20 [ 184.193968][ C1] ? dev_queue_xmit+0x18/0x20 [ 184.198628][ C1] br_dev_queue_push_xmit+0x3f3/0x5c0 [ 184.203990][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 184.209614][ C1] br_forward_finish+0xfa/0x400 [ 184.214507][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 184.220034][ C1] ? br_fdb_add.cold+0x8c/0x8c [ 184.224786][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 184.230488][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 184.235074][ C1] __br_forward+0x641/0xb00 [ 184.239569][ C1] ? br_forward_finish+0x400/0x400 [ 184.244752][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 184.250282][ C1] deliver_clone+0x61/0xc0 [ 184.254683][ C1] maybe_deliver+0x2c7/0x390 [ 184.259601][ C1] br_flood+0x13a/0x3d0 [ 184.263742][ C1] br_dev_xmit+0x98c/0x15a0 [ 184.268322][ C1] ? br_poll_controller+0x10/0x10 [ 184.273330][ C1] ? netif_skb_features+0x6c2/0xb90 [ 184.278520][ C1] ? netdev_set_sb_channel+0xe0/0xe0 [ 184.283917][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 184.290135][ C1] ? validate_xmit_xfrm+0x43c/0xf10 [ 184.296531][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.302756][ C1] dev_hard_start_xmit+0x1a3/0x9c0 [ 184.307857][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.314081][ C1] __dev_queue_xmit+0x2b15/0x3650 [ 184.319086][ C1] ? __nf_conntrack_find_get+0xa97/0x13a0 [ 184.324801][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 184.330078][ C1] ? __ip_finish_output+0x5fc/0xb90 [ 184.335258][ C1] ? __kasan_check_read+0x11/0x20 [ 184.340264][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 184.346484][ C1] ? __nf_ct_refresh_acct+0x93/0x2d0 [ 184.351768][ C1] ? lock_downgrade+0x920/0x920 [ 184.356611][ C1] ? lock_acquire+0x190/0x410 [ 184.361271][ C1] ? __ip_finish_output+0x5fc/0xb90 [ 184.366461][ C1] dev_queue_xmit+0x18/0x20 [ 184.371044][ C1] ? dev_queue_xmit+0x18/0x20 [ 184.375721][ C1] ip_finish_output2+0x1726/0x2570 [ 184.380814][ C1] ? nf_ct_deliver_cached_events+0x23d/0x6e0 [ 184.386792][ C1] ? ip_frag_next+0x910/0x910 [ 184.391465][ C1] ? __kasan_check_read+0x11/0x20 [ 184.396483][ C1] __ip_finish_output+0x5fc/0xb90 [ 184.401488][ C1] ? __ip_finish_output+0x5fc/0xb90 [ 184.406668][ C1] ? audit_alloc_mark+0x430/0x500 [ 184.411678][ C1] ip_finish_output+0x38/0x1f0 [ 184.416424][ C1] ip_output+0x21f/0x640 [ 184.420823][ C1] ? ip_mc_output+0xf40/0xf40 [ 184.425498][ C1] ? __ip_finish_output+0xb90/0xb90 [ 184.430866][ C1] ? __kasan_check_read+0x11/0x20 [ 184.435879][ C1] ip_local_out+0xbb/0x190 [ 184.440290][ C1] igmpv3_sendpack+0x1b5/0x2c0 [ 184.445142][ C1] igmp_ifc_timer_expire+0x687/0xa00 [ 184.450415][ C1] ? call_timer_fn+0xe0/0x780 [ 184.455168][ C1] call_timer_fn+0x1ac/0x780 [ 184.459757][ C1] ? __ip_mc_dec_group+0x520/0x520 [ 184.464856][ C1] ? msleep_interruptible+0x150/0x150 [ 184.470217][ C1] ? trace_hardirqs_on+0x67/0x240 [ 184.475225][ C1] ? __kasan_check_read+0x11/0x20 [ 184.480279][ C1] ? __ip_mc_dec_group+0x520/0x520 [ 184.485373][ C1] ? __ip_mc_dec_group+0x520/0x520 [ 184.490479][ C1] run_timer_softirq+0x697/0x17a0 [ 184.495842][ C1] ? add_timer+0x930/0x930 [ 184.500242][ C1] ? kvm_clock_read+0x18/0x30 [ 184.504900][ C1] ? kvm_sched_clock_read+0x9/0x20 [ 184.509993][ C1] ? sched_clock+0x2e/0x50 [ 184.514430][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 184.519270][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.525545][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 184.531781][ C1] __do_softirq+0x262/0x98c [ 184.536623][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 184.541634][ C1] irq_exit+0x19b/0x1e0 [ 184.545772][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 184.551483][ C1] apic_timer_interrupt+0xf/0x20 [ 184.556396][ C1] [ 184.559319][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 184.564683][ C1] Code: 38 73 6e fa eb 8a 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 24 1b 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 14 1b 4a 00 fb f4 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 ee 32 22 fa e8 39 [ 184.585338][ C1] RSP: 0018:ffff8880a98dfd68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 184.594050][ C1] RAX: 1ffffffff11a5e8d RBX: ffff8880a98c6340 RCX: 1ffffffff134b5ee [ 184.602178][ C1] RDX: dffffc0000000000 RSI: ffffffff8177f14e RDI: ffffffff873e050c [ 184.610153][ C1] RBP: ffff8880a98dfd98 R08: ffff8880a98c6340 R09: ffffed1015318c69 [ 184.618294][ C1] R10: ffffed1015318c68 R11: ffff8880a98c6347 R12: dffffc0000000000 [ 184.626353][ C1] R13: ffffffff89a57d78 R14: 0000000000000000 R15: 0000000000000001 [ 184.634429][ C1] ? trace_hardirqs_on+0x5e/0x240 [ 184.639703][ C1] ? default_idle+0x1c/0x360 [ 184.644279][ C1] ? default_idle+0x4e/0x360 [ 184.648866][ C1] arch_cpu_idle+0xa/0x10 [ 184.653202][ C1] default_idle_call+0x84/0xb0 [ 184.657950][ C1] do_idle+0x413/0x760 [ 184.662004][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 184.667109][ C1] cpu_startup_entry+0x1b/0x20 [ 184.672152][ C1] start_secondary+0x315/0x430 [ 184.676916][ C1] ? set_cpu_sibling_map+0x2180/0x2180 [ 184.682369][ C1] secondary_startup_64+0xa4/0xb0