Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. 2021/05/07 19:27:23 fuzzer started 2021/05/07 19:27:23 connecting to host at 10.128.0.169:44729 2021/05/07 19:27:23 checking machine... 2021/05/07 19:27:23 checking revisions... 2021/05/07 19:27:23 testing simple program... syzkaller login: [ 58.272922][ T8437] chnl_net:caif_netlink_parms(): no params data found [ 58.314774][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.322802][ T8437] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.330506][ T8437] device bridge_slave_0 entered promiscuous mode [ 58.339148][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.346900][ T8437] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.354958][ T8437] device bridge_slave_1 entered promiscuous mode [ 58.371745][ T8437] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.382876][ T8437] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.401464][ T8437] team0: Port device team_slave_0 added [ 58.408702][ T8437] team0: Port device team_slave_1 added [ 58.423746][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 58.430924][ T8437] 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. [ 58.457094][ T8437] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 58.469211][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 58.476355][ T8437] 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. [ 58.502415][ T8437] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 58.525205][ T8437] device hsr_slave_0 entered promiscuous mode [ 58.532596][ T8437] device hsr_slave_1 entered promiscuous mode [ 58.613205][ T8437] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.623419][ T8437] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.632681][ T8437] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.640782][ T8437] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.661257][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.668447][ T8437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.676497][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.683692][ T8437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.719711][ T8437] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.734962][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.745898][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.754217][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.762749][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 58.775636][ T8437] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.786476][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.796259][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.803823][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.814809][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.823916][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.831006][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.848452][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.856874][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.867704][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.878478][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.889991][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.900668][ T8437] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.917312][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.925049][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.938059][ T8437] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.955042][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.972857][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.981084][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.989618][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 59.000178][ T8437] device veth0_vlan entered promiscuous mode [ 59.010580][ T8437] device veth1_vlan entered promiscuous mode [ 59.029886][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 59.037909][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 59.046627][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 59.058695][ T8437] device veth0_macvtap entered promiscuous mode [ 59.068571][ T8437] device veth1_macvtap entered promiscuous mode [ 59.085024][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 59.093117][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 59.102614][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 59.113878][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 59.122028][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 59.133517][ T8437] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.142705][ T8437] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.151451][ T8437] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.160134][ T8437] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 59.232843][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.250055][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.269282][ T56] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 59.272596][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 59.277966][ T56] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 59.295777][ T8658] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 19:27:25 building call list... executing program [ 59.858478][ T9] ------------[ cut here ]------------ [ 59.864506][ T9] hook not found, pf 3 num 0 [ 59.865159][ T9] WARNING: CPU: 1 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 59.882328][ T9] Modules linked in: [ 59.886288][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 59.895662][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.908088][ T9] Workqueue: netns cleanup_net [ 59.913656][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 59.920062][ T9] 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 00 a1 6e 8a e8 d8 67 8a 01 <0f> 0b e9 e5 00 00 00 e8 b9 8a 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 59.942393][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 59.948618][ T9] RAX: 0000000000000000 RBX: ffff888147473d00 RCX: 0000000000000000 [ 59.957656][ T9] RDX: ffff888012380000 RSI: ffffffff815cc9a5 RDI: fffff5200019cf6a [ 59.968087][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 59.976957][ T9] R10: ffffffff815c680e R11: 0000000000000000 R12: ffff88801db98f20 [ 59.986822][ T9] R13: 0000000000000000 R14: ffff8880159af280 R15: 0000000000000001 [ 59.996470][ T9] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 60.007914][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.015283][ T9] CR2: 00007f4cc7556000 CR3: 00000000180cc000 CR4: 0000000000350ee0 [ 60.025067][ T9] Call Trace: [ 60.028419][ T9] nf_unregister_net_hooks+0x117/0x160 [ 60.035102][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 60.043126][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 60.048923][ T9] cleanup_net+0x451/0xb10 [ 60.054726][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 60.060277][ T9] process_one_work+0x98d/0x1600 [ 60.068608][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 60.076713][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 60.083446][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 60.088560][ T9] worker_thread+0x64c/0x1120 [ 60.094403][ T9] ? process_one_work+0x1600/0x1600 [ 60.099679][ T9] kthread+0x3b1/0x4a0 [ 60.105834][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 60.111948][ T9] ret_from_fork+0x1f/0x30 [ 60.116436][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 60.123018][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 60.130907][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.140956][ T9] Workqueue: netns cleanup_net [ 60.145726][ T9] Call Trace: [ 60.148999][ T9] dump_stack+0x141/0x1d7 [ 60.153329][ T9] panic+0x306/0x73d [ 60.157225][ T9] ? __warn_printk+0xf3/0xf3 [ 60.161818][ T9] ? __warn.cold+0x1a/0x44 [ 60.166239][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 60.171957][ T9] __warn.cold+0x35/0x44 [ 60.176197][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 60.181919][ T9] report_bug+0x1bd/0x210 [ 60.186244][ T9] handle_bug+0x3c/0x60 [ 60.190387][ T9] exc_invalid_op+0x14/0x40 [ 60.194880][ T9] asm_exc_invalid_op+0x12/0x20 [ 60.199723][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 60.206039][ T9] 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 00 a1 6e 8a e8 d8 67 8a 01 <0f> 0b e9 e5 00 00 00 e8 b9 8a 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 60.225631][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 60.231683][ T9] RAX: 0000000000000000 RBX: ffff888147473d00 RCX: 0000000000000000 [ 60.239639][ T9] RDX: ffff888012380000 RSI: ffffffff815cc9a5 RDI: fffff5200019cf6a [ 60.247595][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 60.255552][ T9] R10: ffffffff815c680e R11: 0000000000000000 R12: ffff88801db98f20 [ 60.263509][ T9] R13: 0000000000000000 R14: ffff8880159af280 R15: 0000000000000001 [ 60.271468][ T9] ? wake_up_klogd.part.0+0x8e/0xd0 [ 60.276660][ T9] ? vprintk+0x95/0x260 [ 60.280814][ T9] nf_unregister_net_hooks+0x117/0x160 [ 60.286265][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 60.292147][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 60.297680][ T9] cleanup_net+0x451/0xb10 [ 60.302087][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 60.307459][ T9] process_one_work+0x98d/0x1600 [ 60.312391][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 60.317759][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 60.322678][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 60.327697][ T9] worker_thread+0x64c/0x1120 [ 60.332373][ T9] ? process_one_work+0x1600/0x1600 [ 60.337564][ T9] kthread+0x3b1/0x4a0 [ 60.341619][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 60.346719][ T9] ret_from_fork+0x1f/0x30 [ 60.355375][ T9] Kernel Offset: disabled [ 60.360007][ T9] Rebooting in 86400 seconds..