Warning: Permanently added '10.128.0.153' (ECDSA) to the list of known hosts. syzkaller login: [ 77.097486][ T9906] IPVS: ftp: loaded support on port[0] = 21 [ 77.147706][ T9906] chnl_net:caif_netlink_parms(): no params data found [ 77.172328][ T9906] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.179867][ T9906] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.187561][ T9906] device bridge_slave_0 entered promiscuous mode [ 77.195022][ T9906] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.202134][ T9906] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.209886][ T9906] device bridge_slave_1 entered promiscuous mode [ 77.225510][ T9906] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.235948][ T9906] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.251843][ T9906] team0: Port device team_slave_0 added [ 77.258877][ T9906] team0: Port device team_slave_1 added [ 77.314613][ T9906] device hsr_slave_0 entered promiscuous mode [ 77.372937][ T9906] device hsr_slave_1 entered promiscuous mode [ 77.438130][ T9906] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.445350][ T9906] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.452742][ T9906] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.459808][ T9906] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.485600][ T9906] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.496021][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.505110][ T3014] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.513531][ T3014] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.521231][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.531457][ T9906] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.551501][ T9906] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.562604][ T9906] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.575424][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.583943][ T3014] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.591032][ T3014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.599116][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.607494][ T3014] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.614569][ T3014] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.622588][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.630960][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.639407][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 77.647649][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.655987][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.663754][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.678639][ T9906] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 182.752431][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 182.759060][ C0] rcu: 0-....: (1 GPs behind) idle=952/1/0x4000000000000002 softirq=9371/9372 fqs=5250 [ 182.768841][ C0] (t=10502 jiffies g=9221 q=85) [ 182.773760][ C0] NMI backtrace for cpu 0 [ 182.778076][ C0] CPU: 0 PID: 3014 Comm: kworker/0:2 Not tainted 5.3.0-rc8+ #0 [ 182.785588][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 182.795728][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 182.801680][ C0] Call Trace: [ 182.804950][ C0] [ 182.807786][ C0] dump_stack+0x172/0x1f0 [ 182.812095][ C0] nmi_cpu_backtrace.cold+0x70/0xb2 [ 182.817378][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 182.823600][ C0] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 182.829312][ C0] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 182.835289][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 182.841167][ C0] rcu_dump_cpu_stacks+0x183/0x1cf [ 182.846363][ C0] ? find_next_bit+0x107/0x130 [ 182.851107][ C0] rcu_sched_clock_irq.cold+0x4dd/0xc13 [ 182.856633][ C0] ? raise_softirq+0x138/0x340 [ 182.861376][ C0] update_process_times+0x32/0x80 [ 182.866383][ C0] tick_sched_handle+0xa2/0x190 [ 182.871222][ C0] tick_sched_timer+0x53/0x140 [ 182.875965][ C0] __hrtimer_run_queues+0x364/0xe40 [ 182.881142][ C0] ? tick_sched_do_timer+0x1b0/0x1b0 [ 182.886408][ C0] ? hrtimer_start_range_ns+0xcb0/0xcb0 [ 182.891929][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 182.897628][ C0] ? ktime_get_update_offsets_now+0x2d3/0x440 [ 182.903674][ C0] hrtimer_interrupt+0x314/0x770 [ 182.908593][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 182.914128][ C0] apic_timer_interrupt+0xf/0x20 [ 182.919038][ C0] [ 182.921959][ C0] RIP: 0010:__list_add_valid+0x3b/0xa0 [ 182.927403][ C0] Code: 89 fd 48 8d 7a 08 41 54 49 89 d4 48 89 fa 48 83 ec 08 48 c1 ea 03 80 3c 02 00 75 52 49 8b 54 24 08 48 39 f2 0f 85 5a 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 f2 48 c1 ea 03 80 3c 02 00 75 [ 182.947420][ C0] RSP: 0018:ffff88809ff873d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 182.955808][ C0] RAX: dffffc0000000000 RBX: ffff8880997d2338 RCX: ffffffff85c66051 [ 182.963758][ C0] RDX: ffff8880997d23d0 RSI: ffff8880997d23d0 RDI: ffff8880997d23d8 [ 182.971705][ C0] RBP: ffff88809ff873e8 R08: ffff88809ff04700 R09: 0000000000000000 [ 182.979652][ C0] R10: fffffbfff134afaf R11: ffff88809ff04700 R12: ffff8880997d23d0 [ 182.987610][ C0] R13: ffff8880997d2338 R14: ffff8880997d23d8 R15: ffff8880997d23d0 [ 182.995568][ C0] ? hhf_dequeue+0x5d1/0xa20 [ 183.000157][ C0] hhf_dequeue+0x66d/0xa20 [ 183.004562][ C0] __qdisc_run+0x1e7/0x19d0 [ 183.009050][ C0] ? dev_queue_xmit+0x18/0x20 [ 183.013707][ C0] __dev_queue_xmit+0x16f1/0x3650 [ 183.018735][ C0] ? ndisc_constructor+0x1a5/0xb40 [ 183.023826][ C0] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 183.029175][ C0] ? ip6_finish_output2+0x1034/0x2520 [ 183.034534][ C0] ? __kasan_check_read+0x11/0x20 [ 183.039545][ C0] ? lock_downgrade+0x920/0x920 [ 183.044398][ C0] dev_queue_xmit+0x18/0x20 [ 183.048899][ C0] ? dev_queue_xmit+0x18/0x20 [ 183.053564][ C0] neigh_resolve_output+0x5a5/0x970 [ 183.058743][ C0] ip6_finish_output2+0x1034/0x2520 [ 183.063918][ C0] ? ip6_mtu+0x2e6/0x460 [ 183.068138][ C0] ? ip6_forward_finish+0x530/0x530 [ 183.073316][ C0] ? lock_downgrade+0x920/0x920 [ 183.078146][ C0] ? ip6_mtu+0x16f/0x460 [ 183.082376][ C0] __ip6_finish_output+0x444/0xa50 [ 183.087508][ C0] ? __ip6_finish_output+0x444/0xa50 [ 183.092775][ C0] ip6_finish_output+0x38/0x1f0 [ 183.097600][ C0] ip6_output+0x235/0x7c0 [ 183.101909][ C0] ? ip6_finish_output+0x1f0/0x1f0 [ 183.106996][ C0] ? __ip6_finish_output+0xa50/0xa50 [ 183.112281][ C0] ? ndisc_send_skb+0x803/0x1450 [ 183.117209][ C0] ndisc_send_skb+0xf29/0x1450 [ 183.121988][ C0] ? nf_hook.constprop.0+0x560/0x560 [ 183.127626][ C0] ? skb_set_owner_w+0x21b/0x320 [ 183.132589][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 183.138295][ C0] ndisc_send_ns+0x3a9/0x850 [ 183.142875][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 183.149112][ C0] ? ndisc_netdev_event+0x4e0/0x4e0 [ 183.154292][ C0] ? addrconf_dad_work+0xac4/0x1150 [ 183.159612][ C0] ? trace_hardirqs_on+0x67/0x240 [ 183.164621][ C0] ? addrconf_dad_work+0xac4/0x1150 [ 183.169804][ C0] addrconf_dad_work+0xb88/0x1150 [ 183.174813][ C0] ? addrconf_dad_completed+0xbb0/0xbb0 [ 183.180342][ C0] ? lock_acquire+0x190/0x410 [ 183.185001][ C0] ? trace_hardirqs_on+0x67/0x240 [ 183.190014][ C0] process_one_work+0x9af/0x1740 [ 183.194937][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 183.200378][ C0] ? lock_acquire+0x190/0x410 [ 183.205046][ C0] worker_thread+0x98/0xe40 [ 183.209544][ C0] ? trace_hardirqs_on+0x67/0x240 [ 183.214554][ C0] kthread+0x361/0x430 [ 183.218609][ C0] ? process_one_work+0x1740/0x1740 [ 183.223874][ C0] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 183.230104][ C0] ret_from_fork+0x24/0x30