Warning: Permanently added '10.128.0.10' (ECDSA) to the list of known hosts. syzkaller login: [ 95.414841][ T8726] IPVS: ftp: loaded support on port[0] = 21 [ 95.474959][ T8726] chnl_net:caif_netlink_parms(): no params data found [ 95.500142][ T8726] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.508782][ T8726] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.516638][ T8726] device bridge_slave_0 entered promiscuous mode [ 95.524658][ T8726] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.531861][ T8726] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.539415][ T8726] device bridge_slave_1 entered promiscuous mode [ 95.556811][ T8726] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.567202][ T8726] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.587352][ T8726] team0: Port device team_slave_0 added [ 95.594621][ T8726] team0: Port device team_slave_1 added [ 95.673023][ T8726] device hsr_slave_0 entered promiscuous mode [ 95.721773][ T8726] device hsr_slave_1 entered promiscuous mode [ 95.778753][ T8726] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.785972][ T8726] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.793761][ T8726] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.800804][ T8726] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.835392][ T8726] 8021q: adding VLAN 0 to HW filter on device bond0 [ 95.845997][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 95.865817][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.873997][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.883383][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 95.894683][ T8726] 8021q: adding VLAN 0 to HW filter on device team0 [ 95.905806][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 95.914523][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.921613][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 95.942186][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 95.950532][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.957623][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 95.965828][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 95.974576][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 95.982928][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 95.994650][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 96.003078][ T8728] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 96.013887][ T8726] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.030134][ T8726] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 201.131078][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 201.137822][ C1] rcu: 1-...!: (1 GPs behind) idle=96a/1/0x4000000000000002 softirq=9638/9640 fqs=3 [ 201.147463][ C1] (t=10500 jiffies g=6877 q=27) [ 201.152386][ C1] rcu: rcu_preempt kthread starved for 10494 jiffies! g6877 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 201.163635][ C1] rcu: RCU grace-period kthread stack dump: [ 201.169589][ C1] rcu_preempt I29464 10 2 0x80004000 [ 201.177552][ C1] Call Trace: [ 201.180843][ C1] __schedule+0x755/0x1580 [ 201.185247][ C1] ? __sched_text_start+0x8/0x8 [ 201.190081][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 201.195866][ C1] ? schedule_timeout+0x47c/0xc50 [ 201.200873][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 201.206148][ C1] schedule+0xd9/0x260 [ 201.210205][ C1] schedule_timeout+0x486/0xc50 [ 201.215048][ C1] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 201.220842][ C1] ? usleep_range+0x170/0x170 [ 201.225501][ C1] ? trace_hardirqs_on+0x67/0x240 [ 201.230508][ C1] ? __kasan_check_read+0x11/0x20 [ 201.235619][ C1] ? __next_timer_interrupt+0x1a0/0x1a0 [ 201.241150][ C1] ? swake_up_one+0x60/0x60 [ 201.245641][ C1] rcu_gp_kthread+0x9b2/0x18c0 [ 201.250402][ C1] ? rcu_barrier+0x310/0x310 [ 201.254985][ C1] ? trace_hardirqs_on+0x67/0x240 [ 201.260010][ C1] ? __kasan_check_read+0x11/0x20 [ 201.265024][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 201.271251][ C1] ? __kthread_parkme+0x108/0x1c0 [ 201.276256][ C1] ? __kasan_check_read+0x11/0x20 [ 201.281265][ C1] kthread+0x361/0x430 [ 201.285316][ C1] ? rcu_barrier+0x310/0x310 [ 201.289906][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 201.296128][ C1] ret_from_fork+0x24/0x30 [ 201.300564][ C1] NMI backtrace for cpu 1 [ 201.304881][ C1] CPU: 1 PID: 8728 Comm: kworker/1:3 Not tainted 5.3.0-rc7+ #0 [ 201.312400][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 201.322449][ C1] Workqueue: ipv6_addrconf addrconf_dad_work [ 201.328401][ C1] Call Trace: [ 201.331665][ C1] [ 201.334511][ C1] dump_stack+0x172/0x1f0 [ 201.338835][ C1] nmi_cpu_backtrace.cold+0x70/0xb2 [ 201.344015][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 201.350246][ C1] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 201.355862][ C1] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 201.361828][ C1] arch_trigger_cpumask_backtrace+0x14/0x20 [ 201.367825][ C1] rcu_dump_cpu_stacks+0x183/0x1cf [ 201.372935][ C1] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 201.378556][ C1] ? raise_softirq+0x138/0x340 [ 201.383310][ C1] update_process_times+0x32/0x80 [ 201.388330][ C1] tick_sched_handle+0xa2/0x190 [ 201.393263][ C1] tick_sched_timer+0x53/0x140 [ 201.398027][ C1] __hrtimer_run_queues+0x364/0xe40 [ 201.403209][ C1] ? tick_sched_do_timer+0x1b0/0x1b0 [ 201.408482][ C1] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 201.414030][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 201.419744][ C1] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 201.425797][ C1] hrtimer_interrupt+0x314/0x770 [ 201.430739][ C1] smp_apic_timer_interrupt+0x160/0x610 [ 201.436294][ C1] apic_timer_interrupt+0xf/0x20 [ 201.441210][ C1] [ 201.444145][ C1] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x20 [ 201.450901][ C1] Code: f6 fe ff ff 5d c3 0f 1f 40 00 55 0f b7 d6 0f b7 f7 bf 03 00 00 00 48 89 e5 48 8b 4d 08 e8 d8 fe ff ff 5d c3 66 0f 1f 44 00 00 <55> 89 f2 89 fe bf 05 00 00 00 48 89 e5 48 8b 4d 08 e8 ba fe ff ff [ 201.470605][ C1] RSP: 0018:ffff8880929fed50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 201.479010][ C1] RAX: 0000000000000000 RBX: ffff888094e467b8 RCX: ffffffff85c7e179 [ 201.486980][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 201.494936][ C1] RBP: ffff8880929feda8 R08: ffff8880897f0640 R09: fffffbfff14e9555 [ 201.502901][ C1] R10: ffff8880897f1038 R11: ffff8880897f0640 R12: dffffc0000000000 [ 201.510855][ C1] R13: ffff888094e464c0 R14: ffff888094e46850 R15: 0000000000000000 [ 201.518826][ C1] ? hhf_dequeue+0x679/0xa20 [ 201.523400][ C1] ? hhf_dequeue+0xb9/0xa20 [ 201.527889][ C1] __qdisc_run+0x1e7/0x19d0 [ 201.532379][ C1] ? dev_queue_xmit+0x18/0x20 [ 201.537041][ C1] __dev_queue_xmit+0x16f1/0x3650 [ 201.546041][ C1] ? __local_bh_enable_ip+0x15a/0x270 [ 201.551414][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 201.556702][ C1] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 201.562925][ C1] ? br_nf_post_routing+0xd73/0x1d30 [ 201.568194][ C1] ? br_forward_finish+0x235/0x400 [ 201.573410][ C1] ? find_held_lock+0x35/0x130 [ 201.578158][ C1] ? br_forward_finish+0x235/0x400 [ 201.583258][ C1] dev_queue_xmit+0x18/0x20 [ 201.587745][ C1] ? dev_queue_xmit+0x18/0x20 [ 201.592419][ C1] br_dev_queue_push_xmit+0x3f3/0x5c0 [ 201.597787][ C1] ? __kasan_check_read+0x11/0x20 [ 201.602835][ C1] br_forward_finish+0xfa/0x400 [ 201.607682][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 201.613324][ C1] ? br_fdb_add.cold+0x8c/0x8c [ 201.618168][ C1] ? __kasan_check_read+0x11/0x20 [ 201.623194][ C1] __br_forward+0x641/0xb00 [ 201.627692][ C1] ? br_forward_finish+0x400/0x400 [ 201.632794][ C1] ? br_dev_queue_push_xmit+0x5c0/0x5c0 [ 201.638346][ C1] deliver_clone+0x61/0xc0 [ 201.642759][ C1] maybe_deliver+0x2c7/0x390 [ 201.647345][ C1] br_flood+0x13a/0x3d0 [ 201.651509][ C1] br_dev_xmit+0x98c/0x15a0 [ 201.656003][ C1] ? br_poll_controller+0x10/0x10 [ 201.661007][ C1] ? netif_skb_features+0x6c2/0xb90 [ 201.666198][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 201.672442][ C1] dev_hard_start_xmit+0x1a3/0x9c0 [ 201.677568][ C1] __dev_queue_xmit+0x2b15/0x3650 [ 201.682582][ C1] ? __kasan_check_read+0x11/0x20 [ 201.687592][ C1] ? __lock_acquire+0x1702/0x4c30 [ 201.692607][ C1] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 201.697892][ C1] ? ip6_finish_output2+0x1034/0x2520 [ 201.703254][ C1] ? __kasan_check_read+0x11/0x20 [ 201.708376][ C1] ? mark_lock+0xc0/0x11e0 [ 201.712782][ C1] ? mark_held_locks+0xa4/0xf0 [ 201.717534][ C1] dev_queue_xmit+0x18/0x20 [ 201.722577][ C1] ? dev_queue_xmit+0x18/0x20 [ 201.727352][ C1] neigh_resolve_output+0x5a5/0x970 [ 201.732903][ C1] ip6_finish_output2+0x1034/0x2520 [ 201.738098][ C1] ? ip6_forward_finish+0x530/0x530 [ 201.743288][ C1] ? lock_downgrade+0x920/0x920 [ 201.748122][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 201.754347][ C1] ? __kasan_check_read+0x11/0x20 [ 201.759360][ C1] __ip6_finish_output+0x444/0xa50 [ 201.764455][ C1] ? __ip6_finish_output+0x444/0xa50 [ 201.769742][ C1] ip6_finish_output+0x38/0x1f0 [ 201.774578][ C1] ip6_output+0x235/0x7c0 [ 201.778905][ C1] ? ip6_finish_output+0x1f0/0x1f0 [ 201.783999][ C1] ? __ip6_finish_output+0xa50/0xa50 [ 201.789266][ C1] ? hash_netport4_list+0x110/0x1310 [ 201.794537][ C1] ndisc_send_skb+0xf29/0x1450 [ 201.799286][ C1] ? nf_hook.constprop.0+0x560/0x560 [ 201.804562][ C1] ? skb_set_owner_w+0x21b/0x320 [ 201.809483][ C1] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 201.815190][ C1] ndisc_send_ns+0x3a9/0x850 [ 201.819763][ C1] ? mark_held_locks+0xa4/0xf0 [ 201.824522][ C1] ? ndisc_netdev_event+0x4e0/0x4e0 [ 201.829697][ C1] ? lockdep_hardirqs_on+0x418/0x5d0 [ 201.834961][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 201.840137][ C1] ? trace_hardirqs_on+0x67/0x240 [ 201.845144][ C1] ? addrconf_dad_work+0xac4/0x1150 [ 201.850338][ C1] addrconf_dad_work+0xb88/0x1150 [ 201.855345][ C1] ? addrconf_dad_completed+0xbb0/0xbb0 [ 201.860877][ C1] process_one_work+0x9af/0x1740 [ 201.865801][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 201.871151][ C1] ? lock_acquire+0x190/0x410 [ 201.875820][ C1] worker_thread+0x98/0xe40 [ 201.880302][ C1] ? trace_hardirqs_on+0x67/0x240 [ 201.885314][ C1] kthread+0x361/0x430 [ 201.889365][ C1] ? process_one_work+0x1740/0x1740 [ 201.894541][ C1] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 201.900762][ C1] ret_from_fork+0x24/0x30