Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. 2021/05/04 00:30:16 fuzzer started 2021/05/04 00:30:16 connecting to host at 10.128.0.169:44427 2021/05/04 00:30:16 checking machine... 2021/05/04 00:30:16 checking revisions... 2021/05/04 00:30:16 testing simple program... syzkaller login: [ 76.908220][ T8405] chnl_net:caif_netlink_parms(): no params data found [ 76.965645][ T8405] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.974176][ T8405] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.984208][ T8405] device bridge_slave_0 entered promiscuous mode [ 76.994990][ T8405] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.003580][ T8405] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.013710][ T8405] device bridge_slave_1 entered promiscuous mode [ 77.036725][ T8405] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.051347][ T8405] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.076331][ T8405] team0: Port device team_slave_0 added [ 77.085383][ T8405] team0: Port device team_slave_1 added [ 77.105363][ T8405] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.112963][ T8405] 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. [ 77.144742][ T8405] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 77.160571][ T8405] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 77.168235][ T8405] 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. [ 77.197110][ T8405] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 77.225823][ T8405] device hsr_slave_0 entered promiscuous mode [ 77.233141][ T8405] device hsr_slave_1 entered promiscuous mode [ 77.342693][ T8405] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 77.354843][ T8405] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 77.372958][ T8405] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 77.386255][ T8405] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.415334][ T8405] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.423594][ T8405] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.432574][ T8405] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.441619][ T8405] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.494042][ T8405] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.507863][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.522604][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.532934][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.543445][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.557001][ T8405] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.571033][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.580730][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.588361][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.611623][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.621141][ T3145] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.628877][ T3145] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.651733][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.661728][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.671127][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.684319][ T8405] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 77.699084][ T8405] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.708957][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.719341][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.750382][ T8405] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.758144][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.767173][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.789505][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.810766][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.820044][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.828837][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.840497][ T8405] device veth0_vlan entered promiscuous mode [ 77.857883][ T8405] device veth1_vlan entered promiscuous mode [ 77.884956][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.894388][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.903829][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.915553][ T8405] device veth0_macvtap entered promiscuous mode [ 77.925012][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.942023][ T8405] device veth1_macvtap entered promiscuous mode [ 77.961971][ T8405] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.971127][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.982048][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.996037][ T8405] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.006529][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.017015][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.031022][ T8405] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.047165][ T8405] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.058196][ T8405] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.067329][ T8405] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.171458][ T193] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.190629][ T193] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.212927][ T51] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 78.225195][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.232333][ T51] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.251551][ T3145] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/04 00:30:19 building call list... [ 78.914859][ T25] ------------[ cut here ]------------ [ 78.921453][ T25] hook not found, pf 3 num 0 [ 78.922103][ T25] WARNING: CPU: 0 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 78.942469][ T25] Modules linked in: [ 78.947444][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 78.960950][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.977406][ T25] Workqueue: netns cleanup_net [ 78.986114][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.993524][ T25] 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 50 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 79.028542][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 79.035259][ T25] RAX: 0000000000000000 RBX: ffff8880224be000 RCX: 0000000000000000 [ 79.044387][ T25] RDX: ffff888011fd3880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 79.053722][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 79.062367][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019950f20 [ 79.070998][ T25] R13: 0000000000000000 R14: ffff888013947f00 R15: 0000000000000001 [ 79.081031][ T25] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 79.092183][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.100716][ T25] CR2: 000000c000a00000 CR3: 000000002c66f000 CR4: 00000000001506e0 [ 79.109839][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.118952][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.127234][ T25] Call Trace: [ 79.135158][ T25] nf_unregister_net_hooks+0x117/0x160 [ 79.141534][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 79.148078][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 79.155875][ T25] cleanup_net+0x451/0xb10 [ 79.161955][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.167625][ T25] process_one_work+0x98d/0x1600 [ 79.174412][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.180400][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 79.186361][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 79.192166][ T25] worker_thread+0x64c/0x1120 [ 79.197010][ T25] ? process_one_work+0x1600/0x1600 [ 79.202865][ T25] kthread+0x3b1/0x4a0 [ 79.207159][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 79.217049][ T25] ret_from_fork+0x1f/0x30 [ 79.222181][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 79.230012][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 79.238210][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.249589][ T25] Workqueue: netns cleanup_net [ 79.254463][ T25] Call Trace: [ 79.257854][ T25] dump_stack+0x141/0x1d7 [ 79.262662][ T25] panic+0x306/0x73d [ 79.266682][ T25] ? __warn_printk+0xf3/0xf3 [ 79.271475][ T25] ? __warn.cold+0x1a/0x44 [ 79.276217][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 79.282443][ T25] __warn.cold+0x35/0x44 [ 79.287074][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 79.293023][ T25] report_bug+0x1bd/0x210 [ 79.297565][ T25] handle_bug+0x3c/0x60 [ 79.302016][ T25] exc_invalid_op+0x14/0x40 [ 79.306824][ T25] asm_exc_invalid_op+0x12/0x20 [ 79.311901][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 79.318950][ T25] 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 50 4c 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 48 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 79.341053][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 79.347933][ T25] RAX: 0000000000000000 RBX: ffff8880224be000 RCX: 0000000000000000 [ 79.358369][ T25] RDX: ffff888011fd3880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 79.368437][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 79.376797][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888019950f20 [ 79.387033][ T25] R13: 0000000000000000 R14: ffff888013947f00 R15: 0000000000000001 [ 79.396043][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 79.401756][ T25] ? vprintk+0x95/0x260 [ 79.406246][ T25] nf_unregister_net_hooks+0x117/0x160 [ 79.411884][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 79.417892][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 79.423810][ T25] cleanup_net+0x451/0xb10 [ 79.428607][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.434359][ T25] process_one_work+0x98d/0x1600 [ 79.439325][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.445629][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 79.451207][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 79.456781][ T25] worker_thread+0x64c/0x1120 [ 79.462125][ T25] ? process_one_work+0x1600/0x1600 [ 79.467682][ T25] kthread+0x3b1/0x4a0 [ 79.471918][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 79.477501][ T25] ret_from_fork+0x1f/0x30 [ 79.484123][ T25] Kernel Offset: disabled [ 79.489770][ T25] Rebooting in 86400 seconds..