[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.12' (ECDSA) to the list of known hosts. syzkaller login: [ 62.182645][ T7037] IPVS: ftp: loaded support on port[0] = 21 [ 62.275401][ T7037] chnl_net:caif_netlink_parms(): no params data found [ 62.328421][ T7037] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.336784][ T7037] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.345303][ T7037] device bridge_slave_0 entered promiscuous mode [ 62.354207][ T7037] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.361468][ T7037] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.369200][ T7037] device bridge_slave_1 entered promiscuous mode [ 62.390059][ T7037] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.401245][ T7037] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.422540][ T7037] team0: Port device team_slave_0 added [ 62.430496][ T7037] team0: Port device team_slave_1 added [ 62.449452][ T7037] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.456499][ T7037] 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. [ 62.482577][ T7037] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.495094][ T7037] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.502169][ T7037] 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. [ 62.528147][ T7037] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.604423][ T7037] device hsr_slave_0 entered promiscuous mode [ 62.641403][ T7037] device hsr_slave_1 entered promiscuous mode [ 62.758366][ T7037] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.804378][ T7037] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.863928][ T7037] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.944503][ T7037] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.027216][ T7037] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.034450][ T7037] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.042413][ T7037] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.049515][ T7037] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.098472][ T7037] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.114970][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.126809][ T3203] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.135766][ T3203] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.144376][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.158341][ T7037] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.170777][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.179406][ T2689] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.186607][ T2689] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.198822][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.208156][ T3203] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.215283][ T3203] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.242393][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.253255][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.262340][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.277198][ T7037] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.289055][ T7037] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.299323][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.307520][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.332097][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.339520][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.355232][ T7037] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.375144][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.384615][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.407806][ T7037] device veth0_vlan entered promiscuous mode [ 63.414446][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.424278][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.434237][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.442425][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.456683][ T7037] device veth1_vlan entered promiscuous mode [ 63.479443][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.488379][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.498626][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.508855][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.521272][ T7037] device veth0_macvtap entered promiscuous mode [ 63.532018][ T7037] device veth1_macvtap entered promiscuous mode [ 63.551256][ T7037] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.559152][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.571929][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.579955][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.589422][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.602994][ T7037] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.611802][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.621591][ T3203] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 63.865455][ T7246] netlink: 17 bytes leftover after parsing attributes in process `syz-executor440'. [ 63.875131][ T7246] netlink: 32 bytes leftover after parsing attributes in process `syz-executor440'. [ 63.887282][ T3203] divide error: 0000 [#1] PREEMPT SMP KASAN [ 63.893213][ T3203] CPU: 1 PID: 3203 Comm: kworker/1:10 Not tainted 5.7.0-rc3-syzkaller #0 [ 63.901750][ T3203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.911862][ T3203] Workqueue: ipv6_addrconf addrconf_dad_work [ 63.917861][ T3203] RIP: 0010:tabledist.part.0+0x134/0x160 [ 63.923482][ T3203] Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 83 2d 2b fb 48 81 eb 00 10 00 00 eb aa e8 75 2d 2b fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 8a f9 68 fb e9 13 ff ff [ 63.943096][ T3203] RSP: 0018:ffffc90008c5f458 EFLAGS: 00010246 [ 63.949152][ T3203] RAX: 0000000066fa2a65 RBX: 0000000000000000 RCX: 0000000000000000 [ 63.957134][ T3203] RDX: 0000000000000000 RSI: ffffffff8648012b RDI: 0000000000000005 [ 63.967438][ T3203] RBP: ffffffff80000000 R08: ffff88809da62100 R09: ffffed1014d3ce66 [ 63.975405][ T3203] R10: ffff8880a69e732f R11: ffffed1014d3ce65 R12: 0000003e42c00000 [ 63.983381][ T3203] R13: 0000000066fa2a65 R14: ffff888093ffc330 R15: ffff888093ffc000 [ 63.991488][ T3203] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 64.000488][ T3203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.007066][ T3203] CR2: 0000000020000140 CR3: 00000000a7f2a000 CR4: 00000000001406e0 [ 64.015037][ T3203] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.024931][ T3203] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.032994][ T3203] Call Trace: [ 64.037077][ T3203] netem_enqueue+0x412/0x2da0 [ 64.041763][ T3203] ? rwlock_bug.part.0+0x90/0x90 [ 64.046791][ T3203] ? rcu_read_lock_bh_held+0x5a/0xb0 [ 64.052093][ T3203] __dev_queue_xmit+0x154a/0x30a0 [ 64.057128][ T3203] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 64.062421][ T3203] ? mark_lock+0x12b/0xf10 [ 64.066849][ T3203] ? ip6_finish_output2+0x1091/0x25b0 [ 64.072581][ T3203] ? print_usage_bug+0x240/0x240 [ 64.077524][ T3203] ? lock_release+0x800/0x800 [ 64.082198][ T3203] ? lock_downgrade+0x840/0x840 [ 64.087044][ T3203] ? memcpy+0x39/0x60 [ 64.091028][ T3203] ? neigh_resolve_output+0x566/0x930 [ 64.096391][ T3203] neigh_resolve_output+0x566/0x930 [ 64.101589][ T3203] ip6_finish_output2+0x1091/0x25b0 [ 64.106782][ T3203] ? find_held_lock+0x2d/0x110 [ 64.111545][ T3203] ? ip6_frag_next+0xb40/0xb40 [ 64.116311][ T3203] ? lock_downgrade+0x840/0x840 [ 64.121170][ T3203] ? __ip6_finish_output+0x442/0xab0 [ 64.126457][ T3203] __ip6_finish_output+0x442/0xab0 [ 64.131572][ T3203] ip6_finish_output+0x34/0x1f0 [ 64.136431][ T3203] ip6_output+0x239/0x810 [ 64.140763][ T3203] ? ip6_finish_output+0x1f0/0x1f0 [ 64.145971][ T3203] ? __ip6_finish_output+0xab0/0xab0 [ 64.151281][ T3203] ndisc_send_skb+0xf40/0x14b0 [ 64.156135][ T3203] ? nf_hook.constprop.0+0x520/0x520 [ 64.161417][ T3203] ? __alloc_skb+0x3a7/0x5a0 [ 64.166002][ T3203] ? detach_if_pending+0x530/0x530 [ 64.171107][ T3203] ? skb_set_owner_w+0x24e/0x400 [ 64.176058][ T3203] ndisc_send_ns+0x3b0/0x860 [ 64.180650][ T3203] ? ndisc_netdev_event+0x5f0/0x5f0 [ 64.185957][ T3203] ? mark_held_locks+0x9f/0xe0 [ 64.190724][ T3203] ? __local_bh_enable_ip+0x159/0x270 [ 64.196099][ T3203] ? lockdep_hardirqs_on+0x463/0x620 [ 64.201403][ T3203] addrconf_dad_work+0xc4a/0x1280 [ 64.206436][ T3203] ? addrconf_dad_completed+0xbb0/0xbb0 [ 64.212113][ T3203] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 64.218090][ T3203] ? _raw_spin_unlock_irq+0x1f/0x80 [ 64.223288][ T3203] process_one_work+0x965/0x16a0 [ 64.228226][ T3203] ? lock_release+0x800/0x800 [ 64.232918][ T3203] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.239179][ T3203] ? rwlock_bug.part.0+0x90/0x90 [ 64.244124][ T3203] worker_thread+0x96/0xe20 [ 64.248633][ T3203] ? process_one_work+0x16a0/0x16a0 [ 64.253843][ T3203] kthread+0x388/0x470 [ 64.258039][ T3203] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 64.263860][ T3203] ret_from_fork+0x24/0x30 [ 64.268288][ T3203] Modules linked in: [ 64.272285][ T3203] ---[ end trace 8468a1fd503f1978 ]--- [ 64.277792][ T3203] RIP: 0010:tabledist.part.0+0x134/0x160 [ 64.283490][ T3203] Code: 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d c3 e8 83 2d 2b fb 48 81 eb 00 10 00 00 eb aa e8 75 2d 2b fb 8d 4c 2d 00 44 89 e8 31 d2 f1 49 29 ec 49 01 d4 eb c7 48 89 df e8 8a f9 68 fb e9 13 ff ff [ 64.303622][ T3203] RSP: 0018:ffffc90008c5f458 EFLAGS: 00010246 [ 64.309814][ T3203] RAX: 0000000066fa2a65 RBX: 0000000000000000 RCX: 0000000000000000 [ 64.317865][ T3203] RDX: 0000000000000000 RSI: ffffffff8648012b RDI: 0000000000000005 [ 64.325925][ T3203] RBP: ffffffff80000000 R08: ffff88809da62100 R09: ffffed1014d3ce66 [ 64.333991][ T3203] R10: ffff8880a69e732f R11: ffffed1014d3ce65 R12: 0000003e42c00000 [ 64.342168][ T3203] R13: 0000000066fa2a65 R14: ffff888093ffc330 R15: ffff888093ffc000 [ 64.350291][ T3203] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 64.359414][ T3203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.366087][ T3203] CR2: 0000000020000140 CR3: 0000000009879000 CR4: 00000000001406e0 [ 64.374402][ T3203] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.382446][ T3203] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.390603][ T3203] Kernel panic - not syncing: Fatal exception in interrupt [ 64.399000][ T3203] Kernel Offset: disabled [ 64.403327][ T3203] Rebooting in 86400 seconds..