Warning: Permanently added '10.128.10.26' (ECDSA) to the list of known hosts. 2021/04/28 12:27:14 fuzzer started 2021/04/28 12:27:14 connecting to host at 10.128.0.169:37407 2021/04/28 12:27:14 checking machine... 2021/04/28 12:27:14 checking revisions... 2021/04/28 12:27:14 testing simple program... syzkaller login: [ 71.566590][ T8435] chnl_net:caif_netlink_parms(): no params data found [ 71.636647][ T8435] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.645697][ T8435] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.658033][ T8435] device bridge_slave_0 entered promiscuous mode [ 71.670021][ T8435] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.678837][ T8435] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.689933][ T8435] device bridge_slave_1 entered promiscuous mode [ 71.712209][ T8435] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.725333][ T8435] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.749023][ T8435] team0: Port device team_slave_0 added [ 71.757045][ T8435] team0: Port device team_slave_1 added [ 71.774345][ T8435] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.781732][ T8435] 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. [ 71.808053][ T8435] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.821886][ T8435] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.828991][ T8435] 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. [ 71.857150][ T8435] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.884064][ T8435] device hsr_slave_0 entered promiscuous mode [ 71.891340][ T8435] device hsr_slave_1 entered promiscuous mode [ 71.993077][ T8435] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.004208][ T8435] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.014757][ T8435] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.025237][ T8435] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.050754][ T8435] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.058302][ T8435] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.067052][ T8435] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.075114][ T8435] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.121328][ T8435] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.136166][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.147714][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.159376][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.168384][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.184466][ T8435] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.195873][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.206410][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.213986][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.230806][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.241042][ T20] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.248311][ T20] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.266572][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.277114][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.299752][ T8435] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 72.310950][ T8435] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 72.325418][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.335267][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.344721][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.353923][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.377559][ T8435] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.385794][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.393868][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.414119][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.435496][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.444595][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.453885][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.464075][ T8435] device veth0_vlan entered promiscuous mode [ 72.477038][ T8435] device veth1_vlan entered promiscuous mode [ 72.499375][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.507966][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.517731][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.528110][ T8435] device veth0_macvtap entered promiscuous mode [ 72.539260][ T8435] device veth1_macvtap entered promiscuous mode [ 72.546855][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.565501][ T8435] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.573715][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.583409][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.596094][ T8435] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.604905][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.615318][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 72.627462][ T8435] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.637796][ T8435] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.647600][ T8435] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.657241][ T8435] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 72.767938][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.795805][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.806564][ T108] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 72.815012][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 72.824727][ T108] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 72.838742][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program 2021/04/28 12:27:17 building call list... [ 73.519446][ T108] ------------[ cut here ]------------ [ 73.525138][ T108] hook not found, pf 3 num 0 [ 73.525817][ T108] WARNING: CPU: 0 PID: 108 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 73.562305][ T108] Modules linked in: [ 73.566267][ T108] CPU: 0 PID: 108 Comm: kworker/u4:3 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 73.577006][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.592531][ T108] Workqueue: netns cleanup_net [ 73.597468][ T108] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 73.605992][ T108] 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 4d 6e 8a e8 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 73.626691][ T108] RSP: 0018:ffffc9000122fbc0 EFLAGS: 00010286 [ 73.633522][ T108] RAX: 0000000000000000 RBX: ffff8881449e9500 RCX: 0000000000000000 [ 73.642307][ T108] RDX: ffff888012b15580 RSI: ffffffff815cc9f5 RDI: fffff52000245f6a [ 73.652692][ T108] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 73.661569][ T108] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888030df8f20 [ 73.672594][ T108] R13: 0000000000000000 R14: ffff8880145e2a00 R15: 0000000000000001 [ 73.682840][ T108] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.692544][ T108] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.702046][ T108] CR2: 00007f563e61c018 CR3: 000000001de50000 CR4: 00000000001506f0 [ 73.711353][ T108] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.721777][ T108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.733575][ T108] Call Trace: [ 73.736894][ T108] nf_unregister_net_hooks+0x117/0x160 [ 73.744893][ T108] arpt_unregister_table_pre_exit+0x67/0x80 [ 73.752612][ T108] ? arptable_filter_net_exit+0x20/0x20 [ 73.758369][ T108] cleanup_net+0x451/0xb10 [ 73.766036][ T108] ? ops_free_list.part.0+0x3d0/0x3d0 [ 73.773061][ T108] process_one_work+0x98d/0x1600 [ 73.778368][ T108] ? pwq_dec_nr_in_flight+0x320/0x320 [ 73.788995][ T108] ? rwlock_bug.part.0+0x90/0x90 [ 73.794249][ T108] ? _raw_spin_lock_irq+0x41/0x50 [ 73.800605][ T108] worker_thread+0x64c/0x1120 [ 73.805440][ T108] ? process_one_work+0x1600/0x1600 [ 73.814971][ T108] kthread+0x3b1/0x4a0 [ 73.820361][ T108] ? __kthread_bind_mask+0xc0/0xc0 [ 73.825522][ T108] ret_from_fork+0x1f/0x30 [ 73.833028][ T108] Kernel panic - not syncing: panic_on_warn set ... [ 73.839727][ T108] CPU: 0 PID: 108 Comm: kworker/u4:3 Not tainted 5.12.0-next-20210428-syzkaller #0 [ 73.849198][ T108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.859683][ T108] Workqueue: netns cleanup_net [ 73.864647][ T108] Call Trace: [ 73.868118][ T108] dump_stack+0x141/0x1d7 [ 73.872657][ T108] panic+0x306/0x73d [ 73.876575][ T108] ? __warn_printk+0xf3/0xf3 [ 73.881380][ T108] ? __warn.cold+0x1a/0x44 [ 73.885824][ T108] ? __nf_unregister_net_hook+0x1eb/0x610 [ 73.891654][ T108] __warn.cold+0x35/0x44 [ 73.896212][ T108] ? __nf_unregister_net_hook+0x1eb/0x610 [ 73.902508][ T108] report_bug+0x1bd/0x210 [ 73.908196][ T108] handle_bug+0x3c/0x60 [ 73.913072][ T108] exc_invalid_op+0x14/0x40 [ 73.919566][ T108] asm_exc_invalid_op+0x12/0x20 [ 73.925201][ T108] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 73.932258][ T108] 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 4d 6e 8a e8 c8 62 8a 01 <0f> 0b e9 e5 00 00 00 e8 79 04 2d fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 73.952238][ T108] RSP: 0018:ffffc9000122fbc0 EFLAGS: 00010286 [ 73.958415][ T108] RAX: 0000000000000000 RBX: ffff8881449e9500 RCX: 0000000000000000 [ 73.966757][ T108] RDX: ffff888012b15580 RSI: ffffffff815cc9f5 RDI: fffff52000245f6a [ 73.974849][ T108] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 73.983383][ T108] R10: ffffffff815c685e R11: 0000000000000000 R12: ffff888030df8f20 [ 73.991562][ T108] R13: 0000000000000000 R14: ffff8880145e2a00 R15: 0000000000000001 [ 73.999660][ T108] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.004988][ T108] ? vprintk+0x95/0x260 [ 74.009297][ T108] nf_unregister_net_hooks+0x117/0x160 [ 74.014783][ T108] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.021073][ T108] ? arptable_filter_net_exit+0x20/0x20 [ 74.027004][ T108] cleanup_net+0x451/0xb10 [ 74.031443][ T108] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.037021][ T108] process_one_work+0x98d/0x1600 [ 74.042006][ T108] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.047588][ T108] ? rwlock_bug.part.0+0x90/0x90 [ 74.052628][ T108] ? _raw_spin_lock_irq+0x41/0x50 [ 74.057856][ T108] worker_thread+0x64c/0x1120 [ 74.062696][ T108] ? process_one_work+0x1600/0x1600 [ 74.068284][ T108] kthread+0x3b1/0x4a0 [ 74.072656][ T108] ? __kthread_bind_mask+0xc0/0xc0 [ 74.077891][ T108] ret_from_fork+0x1f/0x30 [ 74.085063][ T108] Kernel Offset: disabled [ 74.089669][ T108] Rebooting in 86400 seconds..