Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts. 2021/05/07 09:26:31 fuzzer started 2021/05/07 09:26:31 connecting to host at 10.128.0.169:39071 2021/05/07 09:26:31 checking machine... 2021/05/07 09:26:31 checking revisions... 2021/05/07 09:26:31 testing simple program... syzkaller login: [ 76.525027][ T8438] chnl_net:caif_netlink_parms(): no params data found [ 76.584262][ T8438] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.593176][ T8438] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.603176][ T8438] device bridge_slave_0 entered promiscuous mode [ 76.612847][ T8438] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.621409][ T8438] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.630117][ T8438] device bridge_slave_1 entered promiscuous mode [ 76.653537][ T8438] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.665731][ T8438] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.689342][ T8438] team0: Port device team_slave_0 added [ 76.697432][ T8438] team0: Port device team_slave_1 added [ 76.716187][ T8438] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 76.723296][ T8438] 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. [ 76.750921][ T8438] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 76.764258][ T8438] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 76.772533][ T8438] 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. [ 76.800258][ T8438] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 76.827431][ T8438] device hsr_slave_0 entered promiscuous mode [ 76.835278][ T8438] device hsr_slave_1 entered promiscuous mode [ 76.942955][ T8438] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 76.954441][ T8438] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 76.965973][ T8438] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 76.977182][ T8438] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 77.007057][ T8438] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.014898][ T8438] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.023018][ T8438] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.030740][ T8438] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.075977][ T8438] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.092216][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.105063][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.115303][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.125656][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 77.140759][ T8438] 8021q: adding VLAN 0 to HW filter on device team0 [ 77.154994][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 77.165903][ T3147] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.173365][ T3147] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.193842][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 77.203506][ T4852] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.210645][ T4852] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.230245][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 77.239887][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 77.249515][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 77.260407][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 77.268508][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 77.280757][ T8438] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 77.301729][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 77.311117][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 77.325010][ T8438] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 77.348952][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 77.369259][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 77.379311][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 77.387190][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 77.399794][ T8438] device veth0_vlan entered promiscuous mode [ 77.415105][ T8438] device veth1_vlan entered promiscuous mode [ 77.439821][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 77.450242][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 77.459740][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 77.472434][ T8438] device veth0_macvtap entered promiscuous mode [ 77.484163][ T8438] device veth1_macvtap entered promiscuous mode [ 77.500021][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 77.513845][ T8438] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 77.523501][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 77.533375][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 77.545967][ T8438] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 77.557135][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 77.566315][ T4852] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 77.580271][ T8438] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.590065][ T8438] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.611129][ T8438] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.620736][ T8438] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 77.720336][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.741934][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 77.764997][ T86] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 77.777473][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 77.783118][ T86] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 77.795905][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 09:26:34 building call list... [ 78.481790][ T86] ------------[ cut here ]------------ [ 78.487627][ T86] hook not found, pf 3 num 0 [ 78.492252][ T86] WARNING: CPU: 1 PID: 86 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 78.507668][ T86] Modules linked in: [ 78.517971][ T86] CPU: 1 PID: 86 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 78.526283][ T86] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.548514][ T86] Workqueue: netns cleanup_net [ 78.553548][ T86] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.566482][ T86] 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 d0 4a 8a 01 <0f> 0b e9 e5 00 00 00 e8 e9 16 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 78.590169][ T86] RSP: 0018:ffffc900010efbc0 EFLAGS: 00010286 [ 78.596476][ T86] RAX: 0000000000000000 RBX: ffff888023e1fb00 RCX: 0000000000000000 [ 78.606313][ T86] RDX: ffff888014369c40 RSI: ffffffff815c8ba5 RDI: fffff5200021df6a [ 78.616280][ T86] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.625686][ T86] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888030cb0f20 [ 78.634646][ T86] R13: 0000000000000000 R14: ffff8880174d2280 R15: 0000000000000001 [ 78.658066][ T86] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 78.667468][ T86] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.677589][ T86] CR2: 00007f33bfda2018 CR3: 0000000013b72000 CR4: 00000000001506f0 [ 78.687641][ T86] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.697072][ T86] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.706375][ T86] Call Trace: [ 78.710726][ T86] nf_unregister_net_hooks+0x117/0x160 [ 78.716444][ T86] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.730308][ T86] ? arptable_filter_net_exit+0x20/0x20 [ 78.736365][ T86] cleanup_net+0x451/0xb10 [ 78.742718][ T86] ? ops_free_list.part.0+0x3d0/0x3d0 [ 78.749261][ T86] process_one_work+0x98d/0x1600 [ 78.754338][ T86] ? pwq_dec_nr_in_flight+0x320/0x320 [ 78.761245][ T86] ? rwlock_bug.part.0+0x90/0x90 [ 78.766524][ T86] ? _raw_spin_lock_irq+0x41/0x50 [ 78.773733][ T86] worker_thread+0x64c/0x1120 [ 78.780300][ T86] ? process_one_work+0x1600/0x1600 [ 78.785793][ T86] kthread+0x3b1/0x4a0 [ 78.791443][ T86] ? __kthread_bind_mask+0xc0/0xc0 [ 78.796836][ T86] ret_from_fork+0x1f/0x30 [ 78.806230][ T86] Kernel panic - not syncing: panic_on_warn set ... [ 78.813627][ T86] CPU: 0 PID: 86 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 78.821811][ T86] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.832436][ T86] Workqueue: netns cleanup_net [ 78.837236][ T86] Call Trace: [ 78.841238][ T86] dump_stack+0x141/0x1d7 [ 78.845853][ T86] panic+0x306/0x73d [ 78.850043][ T86] ? __warn_printk+0xf3/0xf3 [ 78.854765][ T86] ? __warn.cold+0x1a/0x44 [ 78.859382][ T86] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.865227][ T86] __warn.cold+0x35/0x44 [ 78.870046][ T86] ? __nf_unregister_net_hook+0x1eb/0x610 [ 78.876486][ T86] report_bug+0x1bd/0x210 [ 78.880946][ T86] handle_bug+0x3c/0x60 [ 78.885901][ T86] exc_invalid_op+0x14/0x40 [ 78.890512][ T86] asm_exc_invalid_op+0x12/0x20 [ 78.895758][ T86] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 78.902112][ T86] 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 d0 4a 8a 01 <0f> 0b e9 e5 00 00 00 e8 e9 16 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 78.922097][ T86] RSP: 0018:ffffc900010efbc0 EFLAGS: 00010286 [ 78.928424][ T86] RAX: 0000000000000000 RBX: ffff888023e1fb00 RCX: 0000000000000000 [ 78.936946][ T86] RDX: ffff888014369c40 RSI: ffffffff815c8ba5 RDI: fffff5200021df6a [ 78.945558][ T86] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 78.953633][ T86] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888030cb0f20 [ 78.961978][ T86] R13: 0000000000000000 R14: ffff8880174d2280 R15: 0000000000000001 [ 78.969976][ T86] ? wake_up_klogd.part.0+0x8e/0xd0 [ 78.975639][ T86] ? vprintk+0x95/0x260 [ 78.980007][ T86] nf_unregister_net_hooks+0x117/0x160 [ 78.988669][ T86] arpt_unregister_table_pre_exit+0x67/0x80 [ 78.994771][ T86] ? arptable_filter_net_exit+0x20/0x20 [ 79.000934][ T86] cleanup_net+0x451/0xb10 [ 79.005745][ T86] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.011376][ T86] process_one_work+0x98d/0x1600 [ 79.016393][ T86] ? pwq_dec_nr_in_flight+0x320/0x320 [ 79.021814][ T86] ? rwlock_bug.part.0+0x90/0x90 [ 79.026795][ T86] ? _raw_spin_lock_irq+0x41/0x50 [ 79.032356][ T86] worker_thread+0x64c/0x1120 [ 79.037405][ T86] ? process_one_work+0x1600/0x1600 [ 79.042780][ T86] kthread+0x3b1/0x4a0 [ 79.047598][ T86] ? __kthread_bind_mask+0xc0/0xc0 [ 79.053106][ T86] ret_from_fork+0x1f/0x30 [ 79.059576][ T86] Kernel Offset: disabled [ 79.064407][ T86] Rebooting in 86400 seconds..