Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts. 2021/05/06 15:22:25 fuzzer started 2021/05/06 15:22:25 connecting to host at 10.128.0.169:43157 2021/05/06 15:22:25 checking machine... 2021/05/06 15:22:25 checking revisions... 2021/05/06 15:22:25 testing simple program... syzkaller login: [ 74.224496][ T8418] chnl_net:caif_netlink_parms(): no params data found [ 74.282848][ T8418] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.291097][ T8418] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.299744][ T8418] device bridge_slave_0 entered promiscuous mode [ 74.309425][ T8418] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.316794][ T8418] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.326016][ T8418] device bridge_slave_1 entered promiscuous mode [ 74.346121][ T8418] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.357657][ T8418] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.380967][ T8418] team0: Port device team_slave_0 added [ 74.389015][ T8418] team0: Port device team_slave_1 added [ 74.406452][ T8418] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.413664][ T8418] 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. [ 74.441364][ T8418] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.454899][ T8418] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.462330][ T8418] 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. [ 74.490019][ T8418] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.517546][ T8418] device hsr_slave_0 entered promiscuous mode [ 74.524615][ T8418] device hsr_slave_1 entered promiscuous mode [ 74.628836][ T8418] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.640525][ T8418] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.650716][ T8418] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.661302][ T8418] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.686552][ T8418] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.693927][ T8418] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.702321][ T8418] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.709580][ T8418] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.756379][ T8418] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.771603][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.782327][ T3889] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.791997][ T3889] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.801504][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.816289][ T8418] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.828141][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.836942][ T8639] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.844216][ T8639] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.858559][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.866990][ T8639] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.874152][ T8639] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.893249][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.901824][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.914019][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.927153][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.940776][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.952618][ T8418] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.972693][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.982191][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.997066][ T8418] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.017612][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.039441][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.048707][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.056981][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.069316][ T8418] device veth0_vlan entered promiscuous mode [ 75.084883][ T8418] device veth1_vlan entered promiscuous mode [ 75.106657][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.115576][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.124667][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.136955][ T8418] device veth0_macvtap entered promiscuous mode [ 75.147319][ T8418] device veth1_macvtap entered promiscuous mode [ 75.166768][ T8418] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.175150][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.185479][ T8639] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.198318][ T8418] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.206399][ T3889] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.220748][ T8418] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.230384][ T8418] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.240744][ T8418] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.249828][ T8418] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.355644][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.366430][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.384610][ T204] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.397449][ T204] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.400919][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 75.413997][ T4844] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/05/06 15:22:28 building call list... [ 76.099677][ T260] ------------[ cut here ]------------ [ 76.105505][ T260] hook not found, pf 3 num 0 [ 76.106154][ T260] WARNING: CPU: 0 PID: 260 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 76.126029][ T260] Modules linked in: [ 76.130802][ T260] CPU: 0 PID: 260 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 76.143152][ T260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.161714][ T260] Workqueue: netns cleanup_net [ 76.166655][ T260] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.174166][ T260] 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 d8 6d 8a e8 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.196335][ T260] RSP: 0018:ffffc9000164fbc0 EFLAGS: 00010286 [ 76.204423][ T260] RAX: 0000000000000000 RBX: ffff888149874800 RCX: 0000000000000000 [ 76.215012][ T260] RDX: ffff8880159a3880 RSI: ffffffff815c8ba5 RDI: fffff520002c9f6a [ 76.223764][ T260] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.234813][ T260] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802b040f20 [ 76.243782][ T260] R13: 0000000000000000 R14: ffff8880139d5e00 R15: 0000000000000001 [ 76.254262][ T260] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 76.264026][ T260] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.273397][ T260] CR2: 00007f540b1b5020 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 76.283927][ T260] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.294650][ T260] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.303696][ T260] Call Trace: [ 76.307011][ T260] nf_unregister_net_hooks+0x117/0x160 [ 76.315693][ T260] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.322990][ T260] ? arptable_filter_net_exit+0x20/0x20 [ 76.331143][ T260] cleanup_net+0x451/0xb10 [ 76.335704][ T260] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.342656][ T260] process_one_work+0x98d/0x1600 [ 76.347656][ T260] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.356073][ T260] ? rwlock_bug.part.0+0x90/0x90 [ 76.364903][ T260] ? _raw_spin_lock_irq+0x41/0x50 [ 76.373956][ T260] worker_thread+0x64c/0x1120 [ 76.379875][ T260] ? __kthread_parkme+0x13f/0x1e0 [ 76.384959][ T260] ? process_one_work+0x1600/0x1600 [ 76.393446][ T260] kthread+0x3b1/0x4a0 [ 76.397622][ T260] ? __kthread_bind_mask+0xc0/0xc0 [ 76.404427][ T260] ret_from_fork+0x1f/0x30 [ 76.411684][ T260] Kernel panic - not syncing: panic_on_warn set ... [ 76.418393][ T260] CPU: 0 PID: 260 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 76.426476][ T260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.436564][ T260] Workqueue: netns cleanup_net [ 76.441350][ T260] Call Trace: [ 76.444636][ T260] dump_stack+0x141/0x1d7 [ 76.449069][ T260] panic+0x306/0x73d [ 76.452978][ T260] ? __warn_printk+0xf3/0xf3 [ 76.457702][ T260] ? __warn.cold+0x1a/0x44 [ 76.462152][ T260] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.467890][ T260] __warn.cold+0x35/0x44 [ 76.472516][ T260] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.478353][ T260] report_bug+0x1bd/0x210 [ 76.482931][ T260] handle_bug+0x3c/0x60 [ 76.487102][ T260] exc_invalid_op+0x14/0x40 [ 76.491619][ T260] asm_exc_invalid_op+0x12/0x20 [ 76.496485][ T260] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.502864][ T260] 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 d8 6d 8a e8 40 4d 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 19 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 76.522484][ T260] RSP: 0018:ffffc9000164fbc0 EFLAGS: 00010286 [ 76.528688][ T260] RAX: 0000000000000000 RBX: ffff888149874800 RCX: 0000000000000000 [ 76.536668][ T260] RDX: ffff8880159a3880 RSI: ffffffff815c8ba5 RDI: fffff520002c9f6a [ 76.544735][ T260] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.552715][ T260] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802b040f20 [ 76.560722][ T260] R13: 0000000000000000 R14: ffff8880139d5e00 R15: 0000000000000001 [ 76.568733][ T260] ? wake_up_klogd.part.0+0x8e/0xd0 [ 76.573957][ T260] ? vprintk+0x95/0x260 [ 76.578148][ T260] nf_unregister_net_hooks+0x117/0x160 [ 76.583740][ T260] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.589744][ T260] ? arptable_filter_net_exit+0x20/0x20 [ 76.595310][ T260] cleanup_net+0x451/0xb10 [ 76.599847][ T260] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.605287][ T260] process_one_work+0x98d/0x1600 [ 76.610341][ T260] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.615825][ T260] ? rwlock_bug.part.0+0x90/0x90 [ 76.620781][ T260] ? _raw_spin_lock_irq+0x41/0x50 [ 76.625882][ T260] worker_thread+0x64c/0x1120 [ 76.630594][ T260] ? __kthread_parkme+0x13f/0x1e0 [ 76.635651][ T260] ? process_one_work+0x1600/0x1600 [ 76.640959][ T260] kthread+0x3b1/0x4a0 [ 76.645048][ T260] ? __kthread_bind_mask+0xc0/0xc0 [ 76.650300][ T260] ret_from_fork+0x1f/0x30 [ 76.656326][ T260] Kernel Offset: disabled [ 76.661254][ T260] Rebooting in 86400 seconds..