Warning: Permanently added '10.128.1.111' (ECDSA) to the list of known hosts. 2021/05/03 23:39:24 fuzzer started 2021/05/03 23:39:24 connecting to host at 10.128.0.169:45271 2021/05/03 23:39:24 checking machine... 2021/05/03 23:39:24 checking revisions... 2021/05/03 23:39:24 testing simple program... syzkaller login: [ 78.762927][ T8402] chnl_net:caif_netlink_parms(): no params data found [ 78.818058][ T8402] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.827693][ T8402] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.837869][ T8402] device bridge_slave_0 entered promiscuous mode [ 78.849803][ T8402] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.857756][ T8402] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.868021][ T8402] device bridge_slave_1 entered promiscuous mode [ 78.891564][ T8402] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.903859][ T8402] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.928368][ T8402] team0: Port device team_slave_0 added [ 78.936723][ T8402] team0: Port device team_slave_1 added [ 78.956321][ T8402] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.964708][ T8402] 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. [ 78.993067][ T8402] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.007928][ T8402] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.016636][ T8402] 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. [ 79.046100][ T8402] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.074483][ T8402] device hsr_slave_0 entered promiscuous mode [ 79.082057][ T8402] device hsr_slave_1 entered promiscuous mode [ 79.190258][ T8402] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.206302][ T8402] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.216678][ T8402] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.228349][ T8402] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.257897][ T8402] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.266214][ T8402] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.275335][ T8402] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.283269][ T8402] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.334041][ T8402] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.349278][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.363296][ T2939] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.373373][ T2939] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.385990][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.402393][ T8402] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.415710][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.427052][ T2939] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.434498][ T2939] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.459531][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.469201][ T2939] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.477452][ T2939] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.490709][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.502383][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.517069][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.535838][ T8402] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.548205][ T8402] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.563327][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.574166][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.585825][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.610270][ T8402] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.620176][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.630217][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.652767][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.675565][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.685986][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.695262][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.708629][ T8402] device veth0_vlan entered promiscuous mode [ 79.725564][ T8402] device veth1_vlan entered promiscuous mode [ 79.740455][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.763115][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.774110][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.786817][ T8402] device veth0_macvtap entered promiscuous mode [ 79.800221][ T8402] device veth1_macvtap entered promiscuous mode [ 79.819009][ T8402] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.827276][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.838860][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.847712][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.860320][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.874889][ T8402] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.883194][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.893298][ T4849] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.908222][ T8402] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.918202][ T8402] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.928355][ T8402] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 79.940439][ T8402] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 80.049014][ T156] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.057935][ T156] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.080422][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 80.115649][ T465] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.126165][ T465] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.136827][ T2939] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/03 23:39:27 building call list... [ 80.785455][ T465] ------------[ cut here ]------------ [ 80.794787][ T465] hook not found, pf 3 num 0 [ 80.795548][ T465] WARNING: CPU: 0 PID: 465 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 80.815069][ T465] Modules linked in: [ 80.822986][ T465] CPU: 0 PID: 465 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 80.836393][ T465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.847982][ T465] Workqueue: netns cleanup_net [ 80.867239][ T465] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 80.876781][ T465] 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 80 5a 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 46 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 80.909909][ T465] RSP: 0018:ffffc900026efbc0 EFLAGS: 00010286 [ 80.916054][ T465] RAX: 0000000000000000 RBX: ffff888147a19a00 RCX: 0000000000000000 [ 80.931553][ T465] RDX: ffff888013199c40 RSI: ffffffff815c8ba5 RDI: fffff520004ddf6a [ 80.941237][ T465] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.952779][ T465] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888018be8f20 [ 80.963108][ T465] R13: 0000000000000000 R14: ffff8880211ffd80 R15: 0000000000000001 [ 80.975072][ T465] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 80.991590][ T465] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.999681][ T465] CR2: 00007fa38f338020 CR3: 0000000021230000 CR4: 00000000001506f0 [ 81.008019][ T465] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.019773][ T465] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.030198][ T465] Call Trace: [ 81.034464][ T465] nf_unregister_net_hooks+0x117/0x160 [ 81.044820][ T465] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.052431][ T465] ? arptable_filter_net_exit+0x20/0x20 [ 81.058226][ T465] cleanup_net+0x451/0xb10 [ 81.069289][ T465] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.076046][ T465] process_one_work+0x98d/0x1600 [ 81.084206][ T465] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.091841][ T465] ? rwlock_bug.part.0+0x90/0x90 [ 81.097717][ T465] ? _raw_spin_lock_irq+0x41/0x50 [ 81.105644][ T465] worker_thread+0x64c/0x1120 [ 81.111608][ T465] ? __kthread_parkme+0x13f/0x1e0 [ 81.116704][ T465] ? process_one_work+0x1600/0x1600 [ 81.123964][ T465] kthread+0x3b1/0x4a0 [ 81.130116][ T465] ? __kthread_bind_mask+0xc0/0xc0 [ 81.136244][ T465] ret_from_fork+0x1f/0x30 [ 81.146087][ T465] Kernel panic - not syncing: panic_on_warn set ... [ 81.153019][ T465] CPU: 0 PID: 465 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 81.161725][ T465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.173218][ T465] Workqueue: netns cleanup_net [ 81.179122][ T465] Call Trace: [ 81.182415][ T465] dump_stack+0x141/0x1d7 [ 81.187603][ T465] panic+0x306/0x73d [ 81.191982][ T465] ? __warn_printk+0xf3/0xf3 [ 81.197795][ T465] ? __warn.cold+0x1a/0x44 [ 81.203904][ T465] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.210486][ T465] __warn.cold+0x35/0x44 [ 81.215664][ T465] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.222014][ T465] report_bug+0x1bd/0x210 [ 81.227705][ T465] handle_bug+0x3c/0x60 [ 81.232695][ T465] exc_invalid_op+0x14/0x40 [ 81.238509][ T465] asm_exc_invalid_op+0x12/0x20 [ 81.244864][ T465] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 81.252595][ T465] 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 80 5a 8a 01 <0f> 0b e9 e5 00 00 00 e8 99 46 30 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 81.277386][ T465] RSP: 0018:ffffc900026efbc0 EFLAGS: 00010286 [ 81.287152][ T465] RAX: 0000000000000000 RBX: ffff888147a19a00 RCX: 0000000000000000 [ 81.297229][ T465] RDX: ffff888013199c40 RSI: ffffffff815c8ba5 RDI: fffff520004ddf6a [ 81.307132][ T465] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 81.316976][ T465] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff888018be8f20 [ 81.328083][ T465] R13: 0000000000000000 R14: ffff8880211ffd80 R15: 0000000000000001 [ 81.338104][ T465] ? wake_up_klogd.part.0+0x8e/0xd0 [ 81.343695][ T465] ? vprintk+0x95/0x260 [ 81.348934][ T465] nf_unregister_net_hooks+0x117/0x160 [ 81.356126][ T465] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.363941][ T465] ? arptable_filter_net_exit+0x20/0x20 [ 81.370751][ T465] cleanup_net+0x451/0xb10 [ 81.375903][ T465] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.382640][ T465] process_one_work+0x98d/0x1600 [ 81.389375][ T465] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.395828][ T465] ? rwlock_bug.part.0+0x90/0x90 [ 81.402084][ T465] ? _raw_spin_lock_irq+0x41/0x50 [ 81.408106][ T465] worker_thread+0x64c/0x1120 [ 81.413883][ T465] ? __kthread_parkme+0x13f/0x1e0 [ 81.420721][ T465] ? process_one_work+0x1600/0x1600 [ 81.427231][ T465] kthread+0x3b1/0x4a0 [ 81.432008][ T465] ? __kthread_bind_mask+0xc0/0xc0 [ 81.437795][ T465] ret_from_fork+0x1f/0x30 [ 81.447787][ T465] Kernel Offset: disabled [ 81.455075][ T465] Rebooting in 86400 seconds..