Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. syzkaller login: [ 76.886273] IPVS: ftp: loaded support on port[0] = 21 [ 76.953276] chnl_net:caif_netlink_parms(): no params data found [ 77.057392] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.063960] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.071975] device bridge_slave_0 entered promiscuous mode [ 77.079674] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.086045] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.093662] device bridge_slave_1 entered promiscuous mode [ 77.111447] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 77.120280] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 77.138397] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 77.145715] team0: Port device team_slave_0 added [ 77.151892] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 77.159581] team0: Port device team_slave_1 added [ 77.174636] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.180959] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 77.207965] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.219738] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.225967] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 77.252135] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.262878] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 77.271114] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 77.290122] device hsr_slave_0 entered promiscuous mode [ 77.295790] device hsr_slave_1 entered promiscuous mode [ 77.302482] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 77.309820] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 77.372429] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.378872] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.385590] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.391986] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.422388] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 77.429966] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.438771] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.447720] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.455954] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.463384] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.470813] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.481211] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 77.488002] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.496618] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.504161] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.510549] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.520562] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.528220] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.534539] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.554452] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 77.564402] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.575683] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 77.583446] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.591801] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.599671] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.607536] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.614967] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.622356] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.634895] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 77.642531] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.649254] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.661078] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.672942] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 77.683006] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.716323] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 77.724260] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 77.731211] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 77.740098] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.748655] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.755549] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.764491] device veth0_vlan entered promiscuous mode [ 77.773300] device veth1_vlan entered promiscuous mode [ 77.779435] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 77.788183] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 77.799775] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 77.809055] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.816327] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.824730] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.833790] device veth0_macvtap entered promiscuous mode [ 77.840908] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 77.849443] device veth1_macvtap entered promiscuous mode [ 77.858255] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 77.867741] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 77.877927] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.884619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.894332] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.904198] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.911106] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 103.225880] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:2:3639] [ 103.233473] Modules linked in: [ 103.236656] irq event stamp: 20039 [ 103.240183] hardirqs last enabled at (20038): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 103.249521] hardirqs last disabled at (20039): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 103.258952] softirqs last enabled at (14972): [] icmp6_dst_alloc+0x3de/0x660 [ 103.267769] softirqs last disabled at (14974): [] ip6_finish_output2+0x1f2/0x2290 [ 103.277550] CPU: 0 PID: 3639 Comm: kworker/0:2 Not tainted 4.19.211-syzkaller #0 [ 103.285144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.294486] Workqueue: ipv6_addrconf addrconf_dad_work [ 103.299761] RIP: 0010:preempt_count_add+0x20/0x190 [ 103.304670] Code: f7 36 8d e8 b2 f3 56 00 eb ab 48 b8 00 00 00 00 00 fc ff df 55 89 fd 53 48 c7 c3 60 37 24 8d 48 89 da 48 c1 ea 03 0f b6 14 02 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2a 01 00 00 8b [ 103.323555] RSP: 0018:ffff8880a8aaebe0 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 [ 103.331243] RAX: dffffc0000000000 RBX: ffffffff8d243760 RCX: ffffffff868c174f [ 103.338493] RDX: 0000000000000004 RSI: ffffffff868c9402 RDI: 0000000000000001 [ 103.345761] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000006 [ 103.353015] R10: 0000000000000005 R11: 0000000000074071 R12: 1ffff11015155d86 [ 103.360264] R13: dffffc0000000000 R14: ffff8880a9ed8cf0 R15: ffff8880a8aaee40 [ 103.367522] FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 103.375727] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.381588] CR2: 00007f45edfb93b0 CR3: 0000000009e6d000 CR4: 00000000003406f0 [ 103.388840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.396122] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.403372] Call Trace: [ 103.405949] _raw_spin_lock+0xe/0x40 [ 103.409644] tcf_police_act+0x7a/0xe60 [ 103.413519] ? retint_kernel+0x2d/0x2d [ 103.417402] ? tcf_police_dump+0x960/0x960 [ 103.421620] ? tcf_action_exec+0x16f/0x400 [ 103.425839] ? tcf_action_exec+0x12e/0x400 [ 103.430066] tcf_action_exec+0x160/0x400 [ 103.434109] route4_classify+0x8d6/0x1420 [ 103.438240] tcf_classify+0x120/0x3c0 [ 103.442027] prio_enqueue+0x3bb/0x7a0 [ 103.445808] ? prio_reset+0x160/0x160 [ 103.449605] ? __dev_queue_xmit+0x134e/0x2e00 [ 103.454085] __dev_queue_xmit+0x140a/0x2e00 [ 103.458391] ? netdev_pick_tx+0x2f0/0x2f0 [ 103.462527] ? mark_held_locks+0xa6/0xf0 [ 103.466567] ? ip_finish_output2+0xfbc/0x15a0 [ 103.471049] ip_finish_output2+0xb6d/0x15a0 [ 103.475354] ? ip_send_check+0xb0/0xb0 [ 103.479221] ? ip_output+0x3a5/0x5f0 [ 103.482920] ip_finish_output+0xae9/0x10b0 [ 103.487136] ip_output+0x203/0x5f0 [ 103.490655] ? ip_mc_output+0xec0/0xec0 [ 103.494608] ? ip_fragment.constprop.0+0x240/0x240 [ 103.499519] ? prandom_u32+0x171/0x1f0 [ 103.503406] ip_local_out+0xaf/0x170 [ 103.507109] iptunnel_xmit+0x63b/0x9d0 [ 103.510979] ? erspan_changelink+0x150/0x220 [ 103.515390] geneve_xmit+0x120d/0x2e60 [ 103.519265] ? geneve_fill_metadata_dst+0x1580/0x1580 [ 103.524437] ? __lock_acquire+0x6de/0x3ff0 [ 103.528651] ? netif_skb_features+0x5c1/0xb30 [ 103.533127] ? check_preemption_disabled+0x41/0x280 [ 103.538129] dev_hard_start_xmit+0x1a8/0x920 [ 103.542520] __dev_queue_xmit+0x269d/0x2e00 [ 103.546827] ? netdev_pick_tx+0x2f0/0x2f0 [ 103.550959] ? ip6_finish_output2+0x113d/0x2290 [ 103.555626] ? memcpy+0x35/0x50 [ 103.558897] neigh_resolve_output+0x55a/0x910 [ 103.563382] ip6_finish_output2+0x113d/0x2290 [ 103.567874] ? ip6_forward_finish+0x4b0/0x4b0 [ 103.572365] ? lock_downgrade+0x720/0x720 [ 103.576498] ? lock_acquire+0x170/0x3c0 [ 103.580474] ? check_preemption_disabled+0x41/0x280 [ 103.585475] ip6_finish_output+0x89b/0x10f0 [ 103.589777] ip6_output+0x205/0x770 [ 103.593385] ? ip6_finish_output+0x10f0/0x10f0 [ 103.597948] ? ip6_fragment+0x34e0/0x34e0 [ 103.602082] ? check_preemption_disabled+0x41/0x280 [ 103.607081] ndisc_send_skb+0xa24/0x1720 [ 103.611127] ? ndisc_alloc_skb+0x320/0x320 [ 103.615358] ? ipv6_setsockopt+0x160/0x160 [ 103.619583] ? kmem_cache_alloc_node_trace+0x351/0x3b0 [ 103.624858] ? __alloc_skb+0x34f/0x560 [ 103.628731] ? skb_set_owner_w+0x1f6/0x330 [ 103.632957] ndisc_send_ns+0x51d/0x840 [ 103.636833] ? addrconf_dad_work+0xa48/0x10a0 [ 103.641327] ? pndisc_redo+0x20/0x20 [ 103.645045] ? mark_held_locks+0xa6/0xf0 [ 103.649089] ? __local_bh_enable_ip+0x159/0x270 [ 103.653754] addrconf_dad_work+0xb0e/0x10a0 [ 103.658058] ? addrconf_dad_completed+0xb60/0xb60 [ 103.662920] process_one_work+0x864/0x1570 [ 103.667142] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 103.671797] worker_thread+0x64c/0x1130 [ 103.675755] ? __kthread_parkme+0x133/0x1e0 [ 103.680060] ? process_one_work+0x1570/0x1570 [ 103.684540] kthread+0x33f/0x460 [ 103.687900] ? kthread_park+0x180/0x180 [ 103.691858] ret_from_fork+0x24/0x30 [ 103.695559] Kernel panic - not syncing: softlockup: hung tasks [ 103.701516] CPU: 0 PID: 3639 Comm: kworker/0:2 Tainted: G L 4.19.211-syzkaller #0 [ 103.710415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.719760] Workqueue: ipv6_addrconf addrconf_dad_work [ 103.725025] Call Trace: [ 103.727591] [ 103.729725] dump_stack+0x1fc/0x2ef [ 103.733334] panic+0x26a/0x50e [ 103.736525] ? __warn_printk+0xf3/0xf3 [ 103.740399] ? watchdog_timer_fn.cold+0x5/0x25 [ 103.744963] ? watchdog_timer_fn+0x53e/0x580 [ 103.749353] watchdog_timer_fn.cold+0x16/0x25 [ 103.753837] __hrtimer_run_queues+0x3f6/0xe60 [ 103.758318] ? softlockup_fn+0xb0/0xb0 [ 103.762189] ? hrtimer_fixup_free+0xa0/0xa0 [ 103.766492] ? kvm_clock_get_cycles+0x14/0x30 [ 103.770968] ? ktime_get_update_offsets_now+0x2ec/0x460 [ 103.776315] hrtimer_interrupt+0x326/0x9e0 [ 103.780537] smp_apic_timer_interrupt+0x10c/0x550 [ 103.785362] apic_timer_interrupt+0xf/0x20 [ 103.789574] [ 103.791796] RIP: 0010:preempt_count_add+0x20/0x190 [ 103.796714] Code: f7 36 8d e8 b2 f3 56 00 eb ab 48 b8 00 00 00 00 00 fc ff df 55 89 fd 53 48 c7 c3 60 37 24 8d 48 89 da 48 c1 ea 03 0f b6 14 02 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2a 01 00 00 8b [ 103.815603] RSP: 0018:ffff8880a8aaebe0 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 [ 103.823298] RAX: dffffc0000000000 RBX: ffffffff8d243760 RCX: ffffffff868c174f [ 103.830566] RDX: 0000000000000004 RSI: ffffffff868c9402 RDI: 0000000000000001 [ 103.837856] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000006 [ 103.845109] R10: 0000000000000005 R11: 0000000000074071 R12: 1ffff11015155d86 [ 103.852362] R13: dffffc0000000000 R14: ffff8880a9ed8cf0 R15: ffff8880a8aaee40 [ 103.859627] ? tcf_action_exec+0x16f/0x400 [ 103.863841] ? tcf_police_act+0x72/0xe60 [ 103.867886] _raw_spin_lock+0xe/0x40 [ 103.871582] tcf_police_act+0x7a/0xe60 [ 103.875452] ? retint_kernel+0x2d/0x2d [ 103.879322] ? tcf_police_dump+0x960/0x960 [ 103.883538] ? tcf_action_exec+0x16f/0x400 [ 103.887752] ? tcf_action_exec+0x12e/0x400 [ 103.891975] tcf_action_exec+0x160/0x400 [ 103.896028] route4_classify+0x8d6/0x1420 [ 103.900160] tcf_classify+0x120/0x3c0 [ 103.903947] prio_enqueue+0x3bb/0x7a0 [ 103.907752] ? prio_reset+0x160/0x160 [ 103.911532] ? __dev_queue_xmit+0x134e/0x2e00 [ 103.916010] __dev_queue_xmit+0x140a/0x2e00 [ 103.920320] ? netdev_pick_tx+0x2f0/0x2f0 [ 103.924459] ? mark_held_locks+0xa6/0xf0 [ 103.928501] ? ip_finish_output2+0xfbc/0x15a0 [ 103.932976] ip_finish_output2+0xb6d/0x15a0 [ 103.937282] ? ip_send_check+0xb0/0xb0 [ 103.941149] ? ip_output+0x3a5/0x5f0 [ 103.944848] ip_finish_output+0xae9/0x10b0 [ 103.949095] ip_output+0x203/0x5f0 [ 103.952616] ? ip_mc_output+0xec0/0xec0 [ 103.956573] ? ip_fragment.constprop.0+0x240/0x240 [ 103.961485] ? prandom_u32+0x171/0x1f0 [ 103.965356] ip_local_out+0xaf/0x170 [ 103.969074] iptunnel_xmit+0x63b/0x9d0 [ 103.972945] ? erspan_changelink+0x150/0x220 [ 103.977340] geneve_xmit+0x120d/0x2e60 [ 103.981212] ? geneve_fill_metadata_dst+0x1580/0x1580 [ 103.986386] ? __lock_acquire+0x6de/0x3ff0 [ 103.990617] ? netif_skb_features+0x5c1/0xb30 [ 103.995097] ? check_preemption_disabled+0x41/0x280 [ 104.000100] dev_hard_start_xmit+0x1a8/0x920 [ 104.004496] __dev_queue_xmit+0x269d/0x2e00 [ 104.008803] ? netdev_pick_tx+0x2f0/0x2f0 [ 104.012942] ? ip6_finish_output2+0x113d/0x2290 [ 104.017596] ? memcpy+0x35/0x50 [ 104.020862] neigh_resolve_output+0x55a/0x910 [ 104.025344] ip6_finish_output2+0x113d/0x2290 [ 104.029823] ? ip6_forward_finish+0x4b0/0x4b0 [ 104.034299] ? lock_downgrade+0x720/0x720 [ 104.038428] ? lock_acquire+0x170/0x3c0 [ 104.042385] ? check_preemption_disabled+0x41/0x280 [ 104.047385] ip6_finish_output+0x89b/0x10f0 [ 104.051689] ip6_output+0x205/0x770 [ 104.055297] ? ip6_finish_output+0x10f0/0x10f0 [ 104.059862] ? ip6_fragment+0x34e0/0x34e0 [ 104.063994] ? check_preemption_disabled+0x41/0x280 [ 104.069358] ndisc_send_skb+0xa24/0x1720 [ 104.073403] ? ndisc_alloc_skb+0x320/0x320 [ 104.077620] ? ipv6_setsockopt+0x160/0x160 [ 104.081840] ? kmem_cache_alloc_node_trace+0x351/0x3b0 [ 104.087105] ? __alloc_skb+0x34f/0x560 [ 104.090985] ? skb_set_owner_w+0x1f6/0x330 [ 104.095204] ndisc_send_ns+0x51d/0x840 [ 104.099075] ? addrconf_dad_work+0xa48/0x10a0 [ 104.103552] ? pndisc_redo+0x20/0x20 [ 104.107247] ? mark_held_locks+0xa6/0xf0 [ 104.111290] ? __local_bh_enable_ip+0x159/0x270 [ 104.115944] addrconf_dad_work+0xb0e/0x10a0 [ 104.120248] ? addrconf_dad_completed+0xb60/0xb60 [ 104.125078] process_one_work+0x864/0x1570 [ 104.129295] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 104.133952] worker_thread+0x64c/0x1130 [ 104.137912] ? __kthread_parkme+0x133/0x1e0 [ 104.142214] ? process_one_work+0x1570/0x1570 [ 104.146695] kthread+0x33f/0x460 [ 104.150057] ? kthread_park+0x180/0x180 [ 104.154034] ret_from_fork+0x24/0x30 [ 104.157944] Kernel Offset: disabled [ 104.161608] Rebooting in 86400 seconds..