Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. 2021/05/06 15:22:30 fuzzer started 2021/05/06 15:22:30 connecting to host at 10.128.0.169:34759 2021/05/06 15:22:30 checking machine... 2021/05/06 15:22:30 checking revisions... 2021/05/06 15:22:30 testing simple program... syzkaller login: [ 80.381669][ T8427] chnl_net:caif_netlink_parms(): no params data found [ 80.440415][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.449178][ T8427] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.460403][ T8427] device bridge_slave_0 entered promiscuous mode [ 80.471069][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.480010][ T8427] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.489448][ T8427] device bridge_slave_1 entered promiscuous mode [ 80.512812][ T8427] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.525745][ T8427] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.552593][ T8427] team0: Port device team_slave_0 added [ 80.562605][ T8427] team0: Port device team_slave_1 added [ 80.583363][ T8427] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.591839][ T8427] 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. [ 80.623087][ T8427] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.638361][ T8427] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.649589][ T8427] 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. [ 80.679074][ T8427] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.719760][ T8427] device hsr_slave_0 entered promiscuous mode [ 80.728952][ T8427] device hsr_slave_1 entered promiscuous mode [ 80.892243][ T8427] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.921739][ T8427] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.932419][ T8427] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.943701][ T8427] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.975215][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.983130][ T8427] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.992093][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.000796][ T8427] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.056307][ T8427] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.072767][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.086729][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.096949][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.107449][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.122563][ T8427] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.135435][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.145644][ T4824] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.153680][ T4824] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.177304][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.187049][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.195317][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.209709][ T4911] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.219834][ T4911] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.232505][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.248834][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.266134][ T8427] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 81.279758][ T8427] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.289569][ T4911] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.315125][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.326315][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.342082][ T8427] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.367288][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.392771][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 81.408046][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.419570][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.432497][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.449678][ T8427] device veth0_vlan entered promiscuous mode [ 81.472859][ T8427] device veth1_vlan entered promiscuous mode [ 81.501720][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.510360][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.520616][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 81.530434][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.543563][ T8427] device veth0_macvtap entered promiscuous mode [ 81.556328][ T8427] device veth1_macvtap entered promiscuous mode executing program [ 81.576993][ T8427] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.588228][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.599286][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 81.608525][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 81.618547][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.631937][ T8427] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.641513][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 81.652533][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.665171][ T8427] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.674120][ T8427] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.684793][ T8427] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.694234][ T8427] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 81.798293][ T499] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.813414][ T499] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.850635][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 81.851044][ T129] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 81.877515][ T129] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 81.890808][ T4824] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/06 15:22:34 building call list... [ 82.628801][ T499] ------------[ cut here ]------------ [ 82.640085][ T499] hook not found, pf 3 num 0 [ 82.642492][ T499] WARNING: CPU: 1 PID: 499 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 82.667524][ T499] Modules linked in: [ 82.671566][ T499] CPU: 1 PID: 499 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 82.683062][ T499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.694799][ T499] Workqueue: netns cleanup_net [ 82.699624][ T499] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 82.709383][ T499] 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 [ 82.733107][ T499] RSP: 0018:ffffc9000287fbc0 EFLAGS: 00010286 [ 82.744465][ T499] RAX: 0000000000000000 RBX: ffff88814a06b500 RCX: 0000000000000000 [ 82.753347][ T499] RDX: ffff8880137854c0 RSI: ffffffff815c8ba5 RDI: fffff5200050ff6a [ 82.765015][ T499] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 82.773500][ T499] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888038bd0f20 [ 82.784493][ T499] R13: 0000000000000000 R14: ffff88801ec6fc00 R15: 0000000000000001 [ 82.793136][ T499] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 82.808335][ T499] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.819152][ T499] CR2: 00007f3a8b42f000 CR3: 000000002070b000 CR4: 00000000001506e0 [ 82.830221][ T499] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.840597][ T499] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.852329][ T499] Call Trace: [ 82.857653][ T499] nf_unregister_net_hooks+0x117/0x160 [ 82.863362][ T499] arpt_unregister_table_pre_exit+0x67/0x80 [ 82.873683][ T499] ? arptable_filter_net_exit+0x20/0x20 [ 82.883010][ T499] cleanup_net+0x451/0xb10 [ 82.891837][ T499] ? ops_free_list.part.0+0x3d0/0x3d0 [ 82.901738][ T499] process_one_work+0x98d/0x1600 [ 82.909859][ T499] ? pwq_dec_nr_in_flight+0x320/0x320 [ 82.917340][ T499] ? rwlock_bug.part.0+0x90/0x90 [ 82.922461][ T499] ? _raw_spin_lock_irq+0x41/0x50 [ 82.931087][ T499] worker_thread+0x64c/0x1120 [ 82.939531][ T499] ? __kthread_parkme+0x13f/0x1e0 [ 82.948748][ T499] ? process_one_work+0x1600/0x1600 [ 82.957093][ T499] kthread+0x3b1/0x4a0 [ 82.961495][ T499] ? __kthread_bind_mask+0xc0/0xc0 [ 82.970455][ T499] ret_from_fork+0x1f/0x30 [ 82.977620][ T499] Kernel panic - not syncing: panic_on_warn set ... [ 82.984700][ T499] CPU: 1 PID: 499 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 82.993223][ T499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.004202][ T499] Workqueue: netns cleanup_net [ 83.009209][ T499] Call Trace: [ 83.012600][ T499] dump_stack+0x141/0x1d7 [ 83.018703][ T499] panic+0x306/0x73d [ 83.022712][ T499] ? __warn_printk+0xf3/0xf3 [ 83.027362][ T499] ? __warn.cold+0x1a/0x44 [ 83.031808][ T499] ? __nf_unregister_net_hook+0x1eb/0x610 [ 83.038045][ T499] __warn.cold+0x35/0x44 [ 83.042567][ T499] ? __nf_unregister_net_hook+0x1eb/0x610 [ 83.048891][ T499] report_bug+0x1bd/0x210 [ 83.053519][ T499] handle_bug+0x3c/0x60 [ 83.057801][ T499] exc_invalid_op+0x14/0x40 [ 83.062376][ T499] asm_exc_invalid_op+0x12/0x20 [ 83.067528][ T499] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 83.074036][ T499] 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 [ 83.094686][ T499] RSP: 0018:ffffc9000287fbc0 EFLAGS: 00010286 [ 83.100962][ T499] RAX: 0000000000000000 RBX: ffff88814a06b500 RCX: 0000000000000000 [ 83.109191][ T499] RDX: ffff8880137854c0 RSI: ffffffff815c8ba5 RDI: fffff5200050ff6a [ 83.117211][ T499] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 83.125620][ T499] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888038bd0f20 [ 83.133753][ T499] R13: 0000000000000000 R14: ffff88801ec6fc00 R15: 0000000000000001 [ 83.142978][ T499] ? wake_up_klogd.part.0+0x8e/0xd0 [ 83.148620][ T499] ? vprintk+0x95/0x260 [ 83.152924][ T499] nf_unregister_net_hooks+0x117/0x160 [ 83.158539][ T499] arpt_unregister_table_pre_exit+0x67/0x80 [ 83.164796][ T499] ? arptable_filter_net_exit+0x20/0x20 [ 83.170828][ T499] cleanup_net+0x451/0xb10 [ 83.175526][ T499] ? ops_free_list.part.0+0x3d0/0x3d0 [ 83.180916][ T499] process_one_work+0x98d/0x1600 [ 83.186137][ T499] ? pwq_dec_nr_in_flight+0x320/0x320 [ 83.191880][ T499] ? rwlock_bug.part.0+0x90/0x90 [ 83.197387][ T499] ? _raw_spin_lock_irq+0x41/0x50 [ 83.202766][ T499] worker_thread+0x64c/0x1120 [ 83.208373][ T499] ? __kthread_parkme+0x13f/0x1e0 [ 83.213928][ T499] ? process_one_work+0x1600/0x1600 [ 83.220105][ T499] kthread+0x3b1/0x4a0 [ 83.224304][ T499] ? __kthread_bind_mask+0xc0/0xc0 [ 83.229414][ T499] ret_from_fork+0x1f/0x30 [ 83.235608][ T499] Kernel Offset: disabled [ 83.240722][ T499] Rebooting in 86400 seconds..