Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. syzkaller login: [ 269.358289][ T8692] IPVS: ftp: loaded support on port[0] = 21 [ 269.420458][ T8692] chnl_net:caif_netlink_parms(): no params data found [ 269.450965][ T8692] bridge0: port 1(bridge_slave_0) entered blocking state [ 269.459526][ T8692] bridge0: port 1(bridge_slave_0) entered disabled state [ 269.467658][ T8692] device bridge_slave_0 entered promiscuous mode [ 269.476876][ T8692] bridge0: port 2(bridge_slave_1) entered blocking state [ 269.484180][ T8692] bridge0: port 2(bridge_slave_1) entered disabled state [ 269.492410][ T8692] device bridge_slave_1 entered promiscuous mode [ 269.509868][ T8692] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 269.521551][ T8692] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 269.541531][ T8692] team0: Port device team_slave_0 added [ 269.549264][ T8692] team0: Port device team_slave_1 added [ 269.607273][ T8692] device hsr_slave_0 entered promiscuous mode [ 269.645170][ T8692] device hsr_slave_1 entered promiscuous mode [ 269.713132][ T8692] bridge0: port 2(bridge_slave_1) entered blocking state [ 269.720562][ T8692] bridge0: port 2(bridge_slave_1) entered forwarding state [ 269.728774][ T8692] bridge0: port 1(bridge_slave_0) entered blocking state [ 269.735910][ T8692] bridge0: port 1(bridge_slave_0) entered forwarding state [ 269.770093][ T8692] 8021q: adding VLAN 0 to HW filter on device bond0 [ 269.782785][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 269.803268][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 269.811926][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 269.822318][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 269.833514][ T8692] 8021q: adding VLAN 0 to HW filter on device team0 [ 269.844582][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 269.853143][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 269.860376][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 269.871662][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 269.881013][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 269.888318][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 269.903817][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 269.913585][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 269.925652][ T8694] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 269.939723][ T8692] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 269.951790][ T8692] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 269.964799][ T3506] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 269.973223][ T3506] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 269.981722][ T3506] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 269.997222][ T8692] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 375.194597][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 375.201342][ C1] rcu: 1-...!: (10499 ticks this GP) idle=3fe/1/0x4000000000000002 softirq=9311/9311 fqs=2 [ 375.211613][ C1] (t=10500 jiffies g=7121 q=41) [ 375.216539][ C1] rcu: rcu_preempt kthread starved for 10495 jiffies! g7121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 375.227875][ C1] rcu: RCU grace-period kthread stack dump: [ 375.233745][ C1] rcu_preempt R running task 29440 10 2 0x80004000 [ 375.241650][ C1] Call Trace: [ 375.245039][ C1] __schedule+0x76e/0x17a0 [ 375.249446][ C1] ? __sched_text_start+0x8/0x8 [ 375.254368][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 375.260339][ C1] ? schedule_timeout+0x47c/0xc50 [ 375.265359][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 375.270717][ C1] schedule+0xd9/0x260 [ 375.274773][ C1] schedule_timeout+0x486/0xc50 [ 375.279618][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 375.285523][ C1] ? usleep_range+0x170/0x170 [ 375.290187][ C1] ? trace_hardirqs_on+0x67/0x240 [ 375.295294][ C1] ? __kasan_check_read+0x11/0x20 [ 375.300320][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 375.305872][ C1] ? swake_up_one+0x60/0x60 [ 375.310371][ C1] rcu_gp_kthread+0x9b2/0x18d0 [ 375.315213][ C1] ? invoke_rcu_core+0x230/0x230 [ 375.320234][ C1] ? trace_hardirqs_on+0x67/0x240 [ 375.325241][ C1] ? __kasan_check_read+0x11/0x20 [ 375.330258][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 375.336479][ C1] ? __kthread_parkme+0x108/0x1c0 [ 375.341485][ C1] ? __kasan_check_read+0x11/0x20 [ 375.346497][ C1] kthread+0x361/0x430 [ 375.350559][ C1] ? invoke_rcu_core+0x230/0x230 [ 375.355493][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 375.361737][ C1] ret_from_fork+0x24/0x30 [ 375.366150][ C1] NMI backtrace for cpu 1 [ 375.370553][ C1] CPU: 1 PID: 3506 Comm: kworker/1:2 Not tainted 5.3.0-rc6-next-20190830 #75 [ 375.379301][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 375.389563][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 375.395528][ C1] Call Trace: [ 375.398890][ C1] [ 375.401859][ C1] dump_stack+0x172/0x1f0 [ 375.406177][ C1] nmi_cpu_backtrace.cold+0x70/0xb2 [ 375.411358][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.417586][ C1] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 375.423210][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 375.429180][ C1] arch_trigger_cpumask_backtrace+0x14/0x20 [ 375.435057][ C1] rcu_dump_cpu_stacks+0x183/0x1cf [ 375.440155][ C1] rcu_sched_clock_irq.cold+0x4fd/0xc12 [ 375.445687][ C1] ? raise_softirq+0x138/0x340 [ 375.450439][ C1] update_process_times+0x2d/0x70 [ 375.455906][ C1] tick_sched_handle+0xa2/0x190 [ 375.460743][ C1] tick_sched_timer+0x53/0x140 [ 375.465502][ C1] __hrtimer_run_queues+0x364/0xe40 [ 375.471049][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 375.476330][ C1] ? hrtimer_sleeper_start_expires+0x90/0x90 [ 375.482470][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 375.488198][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 375.494275][ C1] hrtimer_interrupt+0x314/0x770 [ 375.499237][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 375.504776][ C1] apic_timer_interrupt+0xf/0x20 [ 375.509759][ C1] RIP: 0010:hhf_dequeue+0x679/0xa20 [ 375.514946][ C1] Code: 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 e8 43 55 77 fd 31 ff 89 c6 88 45 b0 e8 d7 e7 a6 fb <0f> b6 75 b0 40 84 f6 0f 84 c6 f9 ff ff e8 85 e6 a6 fb 4c 89 f0 48 [ 375.534642][ C1] RSP: 0018:ffff8880ae908b48 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 [ 375.543129][ C1] RAX: 0000000000000302 RBX: ffff88809bd042f8 RCX: ffffffff85cb6f79 [ 375.551086][ C1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001 [ 375.559042][ C1] RBP: ffff8880ae908b98 R08: ffff88809b8181c0 R09: fffffbfff14ed341 [ 375.566995][ C1] R10: ffff88809b818bc8 R11: ffff88809b8181c0 R12: dffffc0000000000 [ 375.574963][ C1] R13: ffff88809bd04000 R14: ffff88809bd04398 R15: ffff88809bd04390 [ 375.582932][ C1] ? apic_timer_interrupt+0xa/0x20 [ 375.588157][ C1] ? hhf_dequeue+0x679/0xa20 [ 375.592738][ C1] ? hhf_dequeue+0x679/0xa20 [ 375.597388][ C1] __qdisc_run+0x1e7/0x19d0 [ 375.601899][ C1] ? dev_queue_xmit+0x18/0x20 [ 375.606566][ C1] __dev_queue_xmit+0x16f1/0x37c0 [ 375.611572][ C1] ? process_backlog+0x206/0x750 [ 375.616491][ C1] ? net_rx_action+0x50a/0x10d0 [ 375.621413][ C1] ? __do_softirq+0x262/0x98c [ 375.626184][ C1] ? do_softirq_own_stack+0x2a/0x40 [ 375.631362][ C1] ? do_softirq.part.0+0x11a/0x170 [ 375.636548][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 375.641824][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.648060][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.654286][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 375.659394][ C1] dev_queue_xmit+0x18/0x20 [ 375.663885][ C1] ? dev_queue_xmit+0x18/0x20 [ 375.668631][ C1] br_dev_queue_push_xmit+0x3f3/0x5e0 [ 375.674013][ C1] ? __skb_ext_del+0xb0/0x2c0 [ 375.678674][ C1] ? lock_downgrade+0x920/0x920 [ 375.683561][ C1] br_nf_dev_queue_xmit+0x34e/0x14b0 [ 375.688839][ C1] br_nf_post_routing+0x1502/0x1d30 [ 375.694035][ C1] ? br_nf_dev_queue_xmit+0x14b0/0x14b0 [ 375.699567][ C1] ? nf_bridge_update_protocol+0x1d0/0x1d0 [ 375.705375][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.711568][ C1] nf_hook_slow+0xbc/0x1e0 [ 375.715986][ C1] br_forward_finish+0x215/0x400 [ 375.720910][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 375.726451][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.732590][ C1] ? br_fdb_add.cold+0x83/0x83 [ 375.737363][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 375.743068][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 375.747661][ C1] br_nf_hook_thresh+0x2e9/0x370 [ 375.752619][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 375.758154][ C1] ? setup_pre_routing+0x4b0/0x4b0 [ 375.763512][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 375.769048][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.775378][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 375.781346][ C1] br_nf_forward_finish+0x66c/0xa90 [ 375.787326][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 375.792925][ C1] br_nf_forward_ip+0xc74/0x21e0 [ 375.797850][ C1] ? br_nf_forward_arp+0x1670/0x1670 [ 375.803135][ C1] ? br_nf_hook_thresh+0x370/0x370 [ 375.808232][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.814372][ C1] nf_hook_slow+0xbc/0x1e0 [ 375.818788][ C1] __br_forward+0x393/0xb00 [ 375.823297][ C1] ? br_forward_finish+0x400/0x400 [ 375.828393][ C1] ? br_dev_queue_push_xmit+0x5e0/0x5e0 [ 375.833939][ C1] deliver_clone+0x61/0xc0 [ 375.838355][ C1] br_flood+0x325/0x3d0 [ 375.842503][ C1] br_handle_frame_finish+0xb46/0x1670 [ 375.847954][ C1] ? br_handle_local_finish+0x20/0x20 [ 375.853311][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.859463][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 375.864853][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 375.870556][ C1] ? nf_hook_slow+0xf0/0x1e0 [ 375.875217][ C1] br_nf_hook_thresh+0x2e9/0x370 [ 375.880141][ C1] ? br_handle_local_finish+0x20/0x20 [ 375.885499][ C1] ? setup_pre_routing+0x4b0/0x4b0 [ 375.890600][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 375.896748][ C1] ? br_handle_local_finish+0x20/0x20 [ 375.902100][ C1] ? rcu_read_lock_held+0x9c/0xb0 [ 375.907123][ C1] ? rcu_read_lock_held_common+0x130/0x130 [ 375.913032][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 375.918910][ C1] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 375.925418][ C1] br_nf_pre_routing_finish_ipv6+0x6fa/0xdb0 [ 375.931378][ C1] ? br_handle_local_finish+0x20/0x20 [ 375.936745][ C1] ? __kasan_check_read+0x11/0x20 [ 375.941774][ C1] br_nf_pre_routing_ipv6+0x456/0x840 [ 375.947518][ C1] ? br_validate_ipv6+0xb80/0xb80 [ 375.952530][ C1] ? br_nf_pre_routing+0x2360/0x2360 [ 375.957798][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 375.964026][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 375.970261][ C1] ? skb_pull_rcsum+0x155/0x300 [ 375.975186][ C1] br_nf_pre_routing+0x1743/0x2360 [ 375.980323][ C1] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 375.986221][ C1] ? br_nf_pre_routing_finish+0x17a0/0x17a0 [ 375.992096][ C1] br_handle_frame+0x806/0x1340 [ 375.996941][ C1] ? br_handle_frame_finish+0x1670/0x1670 [ 376.002645][ C1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 376.008870][ C1] ? br_handle_local_finish+0x20/0x20 [ 376.014225][ C1] ? rcu_read_lock_held_common+0x130/0x130 [ 376.020124][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.026360][ C1] ? br_handle_frame_finish+0x1670/0x1670 [ 376.032064][ C1] __netif_receive_skb_core+0xfc1/0x3060 [ 376.037677][ C1] ? rcu_read_lock_held_common+0x130/0x130 [ 376.043601][ C1] ? __kasan_check_read+0x11/0x20 [ 376.048708][ C1] ? do_xdp_generic+0x50/0x50 [ 376.053371][ C1] ? __kasan_check_read+0x11/0x20 [ 376.058551][ C1] ? __lock_acquire+0x8a0/0x4a00 [ 376.063487][ C1] ? ip6_rcv_core.isra.0+0x1bf0/0x1bf0 [ 376.069212][ C1] __netif_receive_skb_one_core+0xa8/0x1a0 [ 376.075021][ C1] ? __netif_receive_skb_one_core+0xa8/0x1a0 [ 376.081030][ C1] ? __netif_receive_skb_core+0x3060/0x3060 [ 376.086920][ C1] ? lock_acquire+0x190/0x410 [ 376.091747][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.098024][ C1] __netif_receive_skb+0x2c/0x1d0 [ 376.103045][ C1] process_backlog+0x206/0x750 [ 376.107830][ C1] ? net_rx_action+0x27d/0x10d0 [ 376.112678][ C1] ? lockdep_hardirqs_on+0x19e/0x5d0 [ 376.118176][ C1] net_rx_action+0x50a/0x10d0 [ 376.123008][ C1] ? napi_busy_loop+0x970/0x970 [ 376.127859][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 376.133519][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 376.139522][ C1] ? ip6_finish_output2+0x106d/0x2550 [ 376.144887][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.151117][ C1] __do_softirq+0x262/0x98c [ 376.155698][ C1] ? ip6_finish_output2+0x106d/0x2550 [ 376.161173][ C1] do_softirq_own_stack+0x2a/0x40 [ 376.166181][ C1] [ 376.169106][ C1] do_softirq.part.0+0x11a/0x170 [ 376.174024][ C1] __local_bh_enable_ip+0x211/0x270 [ 376.179207][ C1] ip6_finish_output2+0x10a0/0x2550 [ 376.184392][ C1] ? ip6_mtu+0x2e6/0x460 [ 376.188620][ C1] ? ip6_forward_finish+0x570/0x570 [ 376.193902][ C1] ? lock_downgrade+0x920/0x920 [ 376.198752][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 376.204976][ C1] ? __kasan_check_read+0x11/0x20 [ 376.209990][ C1] __ip6_finish_output+0x444/0xaa0 [ 376.215104][ C1] ? __ip6_finish_output+0x444/0xaa0 [ 376.220379][ C1] ip6_finish_output+0x38/0x1f0 [ 376.225418][ C1] ip6_output+0x235/0x7f0 [ 376.229755][ C1] ? ip6_finish_output+0x1f0/0x1f0 [ 376.234877][ C1] ? __ip6_finish_output+0xaa0/0xaa0 [ 376.240210][ C1] ndisc_send_skb+0xf29/0x14a0 [ 376.244970][ C1] ? nf_hook.constprop.0+0x560/0x560 [ 376.250292][ C1] ? skb_set_owner_w+0x21b/0x320 [ 376.255218][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 376.260921][ C1] ndisc_send_ns+0x3a9/0x850 [ 376.265498][ C1] ? mark_held_locks+0xa4/0xf0 [ 376.270365][ C1] ? ndisc_netdev_event+0x4e0/0x4e0 [ 376.275552][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 376.280820][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 376.286094][ C1] ? trace_hardirqs_on+0x67/0x240 [ 376.291130][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 376.296329][ C1] addrconf_dad_work+0xb88/0x1150 [ 376.301527][ C1] ? addrconf_dad_completed+0xbb0/0xbb0 [ 376.307068][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 376.313035][ C1] ? trace_hardirqs_on+0x67/0x240 [ 376.318063][ C1] process_one_work+0x9af/0x1740 [ 376.322989][ C1] ? __schedule+0x776/0x17a0 [ 376.327585][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 376.332952][ C1] ? lock_acquire+0x190/0x410 [ 376.337621][ C1] worker_thread+0x98/0xe40 [ 376.342107][ C1] ? trace_hardirqs_on+0x67/0x240 [ 376.347137][ C1] kthread+0x361/0x430 [ 376.351200][ C1] ? process_one_work+0x1740/0x1740 [ 376.356393][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 376.362623][ C1] ret_from_fork+0x24/0x30