Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. syzkaller login: [ 32.797590] IPVS: ftp: loaded support on port[0] = 21 [ 32.866231] chnl_net:caif_netlink_parms(): no params data found [ 32.954963] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.962840] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.970483] device bridge_slave_0 entered promiscuous mode [ 32.978988] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.986312] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.994706] device bridge_slave_1 entered promiscuous mode [ 33.012748] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.023575] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.044064] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.051912] team0: Port device team_slave_0 added [ 33.057760] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.066808] team0: Port device team_slave_1 added [ 33.081368] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 33.087893] 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. [ 33.117240] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 33.129152] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 33.136159] 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. [ 33.164580] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 33.176588] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 33.184732] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 33.203899] device hsr_slave_0 entered promiscuous mode [ 33.211130] device hsr_slave_1 entered promiscuous mode [ 33.218162] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 33.227896] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 33.288865] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.295670] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.303048] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.309705] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.339768] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 33.347214] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.356764] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.367571] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.386648] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.394811] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.405993] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 33.413650] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.422713] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 33.431157] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.438352] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.458752] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 33.469831] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 33.482421] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 33.491119] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 33.500630] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.508006] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.516340] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 33.524342] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 33.532414] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 33.540679] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 33.548900] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 33.557382] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 33.570115] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 33.579091] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 33.586506] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 33.597795] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 33.650252] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 33.661054] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 33.686777] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 33.696740] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 33.704264] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 33.713933] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 33.722710] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 33.731105] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 33.741149] device veth0_vlan entered promiscuous mode [ 33.749829] device veth1_vlan entered promiscuous mode [ 33.758096] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 33.768616] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 33.779840] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 33.792143] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 33.799901] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 33.807887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 33.817643] device veth0_macvtap entered promiscuous mode [ 33.825101] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 33.835606] device veth1_macvtap entered promiscuous mode [ 33.845189] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 33.853510] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 33.861924] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 33.873038] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 33.882507] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 33.890786] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 33.898607] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 33.907768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 33.918469] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 33.925926] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 33.933507] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 33.942360] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 34.100354] ip6_tunnel: ip6gretap0 xmit: Local address not yet configured! executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 34.820807] skbuff: skb_over_panic: text:ffffffff863ac7ef len:40 put:40 head:ffff888093c5ae80 data:ffff888093c5dc70 tail:0x2e18 end:0xec0 dev:ip6gretap0 [ 34.837468] ------------[ cut here ]------------ [ 34.843995] kernel BUG at net/core/skbuff.c:104! [ 34.849869] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 34.857166] Modules linked in: [ 34.860751] CPU: 0 PID: 3626 Comm: kworker/0:2 Not tainted 4.14.222-syzkaller #0 [ 34.869823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.879520] Workqueue: ipv6_addrconf addrconf_dad_work [ 34.885351] task: ffff8880a8ed63c0 task.stack: ffff8880a8ed8000 [ 34.891918] RIP: 0010:skb_panic+0x172/0x174 [ 34.896376] RSP: 0000:ffff8880a8edf8d0 EFLAGS: 00010282 [ 34.901945] RAX: 000000000000008c RBX: ffff8880b4929700 RCX: 0000000000000000 [ 34.909632] RDX: 0000000000000000 RSI: ffffffff878bbb40 RDI: ffffed10151dbf10 [ 34.917790] RBP: ffffffff885554a0 R08: 000000000000008c R09: 0000000000000000 [ 34.925953] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff863ac7ef [ 34.934419] R13: 0000000000000028 R14: ffff88809565c200 R15: 0000000000000ec0 [ 34.941872] FS: 0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 34.951350] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.958021] CR2: 0000000020000000 CR3: 0000000097e9f000 CR4: 00000000001406f0 [ 34.967125] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.975109] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.984058] Call Trace: [ 34.987028] ? ip6_mc_hdr.constprop.0+0x11f/0x580 [ 34.992955] skb_put.cold+0x24/0x24 [ 34.997253] ip6_mc_hdr.constprop.0+0x11f/0x580 [ 35.003103] mld_newpack+0x3aa/0x720 [ 35.006908] ? ip6_mc_hdr.constprop.0+0x580/0x580 [ 35.012842] ? trace_hardirqs_on+0x10/0x10 [ 35.017514] add_grhead+0x265/0x330 [ 35.022318] add_grec+0xc40/0xed0 [ 35.026119] ? ip6_route_info_create+0x28b0/0x28b0 [ 35.031948] ? add_grhead+0x330/0x330 [ 35.035839] mld_send_initial_cr.part.0+0xb0/0x140 [ 35.042060] ipv6_mc_dad_complete+0x183/0x5a0 [ 35.047060] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 35.055394] addrconf_dad_completed+0x80f/0xa40 [ 35.060539] ? addrconf_rs_timer+0x5a0/0x5a0 [ 35.065032] ? __local_bh_enable_ip+0xc1/0x170 [ 35.070288] addrconf_dad_work+0x5f2/0xef0 [ 35.074848] ? lock_acquire+0x170/0x3f0 [ 35.078812] ? addrconf_dad_completed+0xa40/0xa40 [ 35.083865] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 35.090532] process_one_work+0x793/0x14a0 [ 35.095267] ? work_busy+0x320/0x320 [ 35.099224] ? worker_thread+0x158/0xff0 [ 35.103405] ? _raw_spin_unlock_irq+0x24/0x80 [ 35.108066] worker_thread+0x5cc/0xff0 [ 35.112060] ? rescuer_thread+0xc80/0xc80 [ 35.116552] kthread+0x30d/0x420 [ 35.120083] ? kthread_create_on_node+0xd0/0xd0 [ 35.124737] ret_from_fork+0x24/0x30 [ 35.128879] Code: 8b 4c 24 10 8b 8b 80 00 00 00 41 56 45 89 e8 4c 89 e2 41 57 48 89 ee 48 c7 c7 40 4d 55 88 ff 74 24 10 ff 74 24 20 e8 b3 72 e4 ff <0f> 0b e8 88 15 3a fa 4c 8b 64 24 18 e8 8e 79 63 fa 48 c7 c1 60 [ 35.150421] RIP: skb_panic+0x172/0x174 RSP: ffff8880a8edf8d0 [ 35.156554] ---[ end trace 07d948e7fcd3b9da ]--- [ 35.161723] Kernel panic - not syncing: Fatal exception in interrupt [ 35.170895] Kernel Offset: disabled [ 35.175070] Rebooting in 86400 seconds..