Warning: Permanently added '10.128.0.195' (ECDSA) to the list of known hosts. 2021/04/29 23:32:21 fuzzer started 2021/04/29 23:32:22 connecting to host at 10.128.0.169:39443 2021/04/29 23:32:22 checking machine... 2021/04/29 23:32:22 checking revisions... 2021/04/29 23:32:22 testing simple program... syzkaller login: [ 72.337574][ T8401] chnl_net:caif_netlink_parms(): no params data found [ 72.394339][ T8401] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.402660][ T8401] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.411500][ T8401] device bridge_slave_0 entered promiscuous mode [ 72.421924][ T8401] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.429842][ T8401] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.437814][ T8401] device bridge_slave_1 entered promiscuous mode [ 72.459986][ T8401] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.472831][ T8401] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.496673][ T8401] team0: Port device team_slave_0 added [ 72.504765][ T8401] team0: Port device team_slave_1 added [ 72.522856][ T8401] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.531074][ T8401] 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. [ 72.557216][ T8401] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.570851][ T8401] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.578234][ T8401] 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. [ 72.605148][ T8401] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.632972][ T8401] device hsr_slave_0 entered promiscuous mode [ 72.640277][ T8401] device hsr_slave_1 entered promiscuous mode [ 72.759906][ T8401] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.773144][ T8401] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.783913][ T8401] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.795836][ T8401] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.823226][ T8401] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.830570][ T8401] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.838650][ T8401] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.846003][ T8401] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.893338][ T8401] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.907099][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.920960][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.931622][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.939852][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.953556][ T8401] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.965358][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.974386][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.981529][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.998781][ T4840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.008200][ T4840] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.015416][ T4840] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.037092][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.050985][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.061153][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.077303][ T8401] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.089105][ T8401] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.103156][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.112736][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.124189][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.144824][ T8401] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.154047][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.163053][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.190120][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.205986][ T8401] device veth0_vlan entered promiscuous mode [ 73.213555][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.225820][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.234401][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.247856][ T8401] device veth1_vlan entered promiscuous mode [ 73.271021][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.282028][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.290314][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.299260][ T8401] device veth0_macvtap entered promiscuous mode [ 73.308757][ T8401] device veth1_macvtap entered promiscuous mode [ 73.321539][ T8621] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.338469][ T8401] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.347826][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.357735][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.370879][ T8401] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.388781][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.397509][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.409722][ T8401] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.418898][ T8401] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.428475][ T8401] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.437769][ T8401] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.534551][ T126] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.547993][ T126] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.576259][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 73.595922][ T126] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.604851][ T126] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.615258][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/04/29 23:32:25 building call list... [ 74.288282][ T126] ------------[ cut here ]------------ [ 74.296237][ T126] hook not found, pf 3 num 0 [ 74.296865][ T126] WARNING: CPU: 1 PID: 126 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 74.314112][ T126] Modules linked in: [ 74.318038][ T126] CPU: 1 PID: 126 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 74.327440][ T126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.340514][ T126] Workqueue: netns cleanup_net [ 74.345337][ T126] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.352283][ T126] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 78 6d 8a e8 40 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.374152][ T126] RSP: 0018:ffffc90000e0fbc0 EFLAGS: 00010286 [ 74.380776][ T126] RAX: 0000000000000000 RBX: ffff888147b66200 RCX: 0000000000000000 [ 74.388782][ T126] RDX: ffff888012450000 RSI: ffffffff815c8ba5 RDI: fffff520001c1f6a [ 74.398988][ T126] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.407008][ T126] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880196a8f20 [ 74.416102][ T126] R13: 0000000000000000 R14: ffff8880215acb00 R15: 0000000000000001 [ 74.432868][ T126] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 74.444498][ T126] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.452201][ T126] CR2: 000000c000800000 CR3: 000000001ce2e000 CR4: 00000000001506e0 [ 74.461920][ T126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.470750][ T126] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.478800][ T126] Call Trace: [ 74.483476][ T126] nf_unregister_net_hooks+0x117/0x160 [ 74.489792][ T126] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.495803][ T126] ? arptable_filter_net_exit+0x20/0x20 [ 74.506896][ T126] cleanup_net+0x451/0xb10 [ 74.520615][ T126] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.526080][ T126] process_one_work+0x98d/0x1600 [ 74.531724][ T126] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.537328][ T126] ? rwlock_bug.part.0+0x90/0x90 [ 74.544287][ T126] ? _raw_spin_lock_irq+0x41/0x50 [ 74.549800][ T126] worker_thread+0x64c/0x1120 [ 74.554545][ T126] ? process_one_work+0x1600/0x1600 [ 74.561609][ T126] kthread+0x3b1/0x4a0 [ 74.565845][ T126] ? __kthread_bind_mask+0xc0/0xc0 [ 74.571543][ T126] ret_from_fork+0x1f/0x30 [ 74.576019][ T126] Kernel panic - not syncing: panic_on_warn set ... [ 74.582644][ T126] CPU: 1 PID: 126 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 74.590816][ T126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.600884][ T126] Workqueue: netns cleanup_net [ 74.605664][ T126] Call Trace: [ 74.608954][ T126] dump_stack+0x141/0x1d7 [ 74.613306][ T126] panic+0x306/0x73d [ 74.617219][ T126] ? __warn_printk+0xf3/0xf3 [ 74.621924][ T126] ? __warn.cold+0x1a/0x44 [ 74.626361][ T126] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.632096][ T126] __warn.cold+0x35/0x44 [ 74.636356][ T126] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.642093][ T126] report_bug+0x1bd/0x210 [ 74.646449][ T126] handle_bug+0x3c/0x60 [ 74.650790][ T126] exc_invalid_op+0x14/0x40 [ 74.655321][ T126] asm_exc_invalid_op+0x12/0x20 [ 74.660171][ T126] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.666505][ T126] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 11 04 00 00 8b 53 1c 89 ee 48 c7 c7 c0 78 6d 8a e8 40 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 74.686297][ T126] RSP: 0018:ffffc90000e0fbc0 EFLAGS: 00010286 [ 74.692371][ T126] RAX: 0000000000000000 RBX: ffff888147b66200 RCX: 0000000000000000 [ 74.700425][ T126] RDX: ffff888012450000 RSI: ffffffff815c8ba5 RDI: fffff520001c1f6a [ 74.709109][ T126] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.717269][ T126] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880196a8f20 [ 74.725681][ T126] R13: 0000000000000000 R14: ffff8880215acb00 R15: 0000000000000001 [ 74.733674][ T126] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.739077][ T126] ? vprintk+0x95/0x260 [ 74.743257][ T126] nf_unregister_net_hooks+0x117/0x160 [ 74.748716][ T126] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.754797][ T126] ? arptable_filter_net_exit+0x20/0x20 [ 74.760344][ T126] cleanup_net+0x451/0xb10 [ 74.764965][ T126] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.770358][ T126] process_one_work+0x98d/0x1600 [ 74.775503][ T126] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.781119][ T126] ? rwlock_bug.part.0+0x90/0x90 [ 74.786074][ T126] ? _raw_spin_lock_irq+0x41/0x50 [ 74.791124][ T126] worker_thread+0x64c/0x1120 [ 74.795823][ T126] ? process_one_work+0x1600/0x1600 [ 74.801194][ T126] kthread+0x3b1/0x4a0 [ 74.805258][ T126] ? __kthread_bind_mask+0xc0/0xc0 [ 74.810716][ T126] ret_from_fork+0x1f/0x30 [ 74.816498][ T126] Kernel Offset: disabled [ 74.821022][ T126] Rebooting in 86400 seconds..