Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts. 2021/04/27 03:46:12 fuzzer started 2021/04/27 03:46:12 connecting to host at 10.128.0.169:36531 2021/04/27 03:46:12 checking machine... 2021/04/27 03:46:12 checking revisions... 2021/04/27 03:46:12 testing simple program... syzkaller login: [ 70.016910][ T8412] chnl_net:caif_netlink_parms(): no params data found [ 70.072016][ T8412] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.080184][ T8412] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.089415][ T8412] device bridge_slave_0 entered promiscuous mode [ 70.100560][ T8412] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.107937][ T8412] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.115720][ T8412] device bridge_slave_1 entered promiscuous mode [ 70.136568][ T8412] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.149218][ T8412] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.171519][ T8412] team0: Port device team_slave_0 added [ 70.179638][ T8412] team0: Port device team_slave_1 added [ 70.198751][ T8412] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 70.206194][ T8412] 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. [ 70.232501][ T8412] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 70.245325][ T8412] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 70.255023][ T8412] 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. [ 70.282008][ T8412] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 70.308850][ T8412] device hsr_slave_0 entered promiscuous mode [ 70.315808][ T8412] device hsr_slave_1 entered promiscuous mode [ 70.418120][ T8412] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.432506][ T8412] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.442781][ T8412] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.454379][ T8412] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.482607][ T8412] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.489965][ T8412] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.498280][ T8412] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.505801][ T8412] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.575670][ T8412] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.594307][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.608262][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.620642][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.631491][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 70.647764][ T8412] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.663626][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.673803][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.680991][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.700341][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.710479][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.717658][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.743167][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.752554][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.761512][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.770872][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.782431][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.793398][ T8412] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.812642][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.820429][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.835083][ T8412] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.857396][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.878070][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.886423][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.894898][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.905846][ T8412] device veth0_vlan entered promiscuous mode [ 70.920104][ T8412] device veth1_vlan entered promiscuous mode [ 70.941708][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.950897][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.960781][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.973771][ T8412] device veth0_macvtap entered promiscuous mode [ 70.983856][ T8412] device veth1_macvtap entered promiscuous mode [ 71.002839][ T8412] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 71.010891][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 71.021777][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 71.034669][ T8412] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 71.043425][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 71.052822][ T4537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 71.067832][ T8412] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.077305][ T8412] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.086159][ T8412] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.097273][ T8412] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 71.189395][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.210739][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.224935][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.241997][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.251716][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.261882][ T4832] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/27 03:46:15 building call list... executing program [ 71.949927][ T155] ------------[ cut here ]------------ [ 71.955766][ T155] hook not found, pf 3 num 0 [ 71.956164][ T155] WARNING: CPU: 0 PID: 155 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 71.973476][ T155] Modules linked in: [ 71.980614][ T155] CPU: 0 PID: 155 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 71.990458][ T155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.001615][ T155] Workqueue: netns cleanup_net [ 72.006446][ T155] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 72.014893][ T155] 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 68 6c 8a e8 2e 07 8a 01 <0f> 0b e9 e5 00 00 00 e8 f9 34 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 72.040672][ T155] RSP: 0018:ffffc90000f3fbc0 EFLAGS: 00010286 [ 72.047690][ T155] RAX: 0000000000000000 RBX: ffff888147592d00 RCX: 0000000000000000 [ 72.055785][ T155] RDX: ffff888011bfb880 RSI: ffffffff815c5205 RDI: fffff520001e7f6a [ 72.065616][ T155] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 72.074796][ T155] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888025270f20 [ 72.083838][ T155] R13: 0000000000000000 R14: ffff888013dd1f00 R15: 0000000000000001 [ 72.092881][ T155] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 72.113604][ T155] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.121997][ T155] CR2: 00007f6852f63000 CR3: 000000001282f000 CR4: 00000000001506f0 [ 72.131213][ T155] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.140325][ T155] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.149674][ T155] Call Trace: [ 72.152996][ T155] nf_unregister_net_hooks+0x117/0x160 [ 72.159956][ T155] arpt_unregister_table_pre_exit+0x67/0x80 [ 72.165894][ T155] ? arptable_filter_net_exit+0x20/0x20 [ 72.173203][ T155] cleanup_net+0x451/0xb10 [ 72.182231][ T155] ? ops_free_list.part.0+0x3d0/0x3d0 [ 72.189258][ T155] process_one_work+0x98d/0x1600 [ 72.194252][ T155] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.201420][ T155] ? rwlock_bug.part.0+0x90/0x90 [ 72.206432][ T155] ? _raw_spin_lock_irq+0x41/0x50 [ 72.213331][ T155] worker_thread+0x64c/0x1120 [ 72.218997][ T155] ? __kthread_parkme+0x13f/0x1e0 [ 72.224063][ T155] ? process_one_work+0x1600/0x1600 [ 72.232070][ T155] kthread+0x3b1/0x4a0 [ 72.236272][ T155] ? __kthread_bind_mask+0xc0/0xc0 [ 72.243132][ T155] ret_from_fork+0x1f/0x30 [ 72.248706][ T155] Kernel panic - not syncing: panic_on_warn set ... [ 72.255315][ T155] CPU: 0 PID: 155 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 72.263759][ T155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.273836][ T155] Workqueue: netns cleanup_net [ 72.278622][ T155] Call Trace: [ 72.281910][ T155] dump_stack+0x141/0x1d7 [ 72.286264][ T155] panic+0x306/0x73d [ 72.290178][ T155] ? __warn_printk+0xf3/0xf3 [ 72.294794][ T155] ? __warn.cold+0x1a/0x44 [ 72.299263][ T155] ? __nf_unregister_net_hook+0x1eb/0x610 [ 72.305011][ T155] __warn.cold+0x35/0x44 [ 72.309384][ T155] ? __nf_unregister_net_hook+0x1eb/0x610 [ 72.315133][ T155] report_bug+0x1bd/0x210 [ 72.319504][ T155] handle_bug+0x3c/0x60 [ 72.323758][ T155] exc_invalid_op+0x14/0x40 [ 72.328282][ T155] asm_exc_invalid_op+0x12/0x20 [ 72.333498][ T155] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 72.340028][ T155] 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 68 6c 8a e8 2e 07 8a 01 <0f> 0b e9 e5 00 00 00 e8 f9 34 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 72.359749][ T155] RSP: 0018:ffffc90000f3fbc0 EFLAGS: 00010286 [ 72.365838][ T155] RAX: 0000000000000000 RBX: ffff888147592d00 RCX: 0000000000000000 [ 72.373822][ T155] RDX: ffff888011bfb880 RSI: ffffffff815c5205 RDI: fffff520001e7f6a [ 72.381890][ T155] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 72.389871][ T155] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888025270f20 [ 72.397942][ T155] R13: 0000000000000000 R14: ffff888013dd1f00 R15: 0000000000000001 [ 72.406033][ T155] ? wake_up_klogd.part.0+0x8e/0xd0 [ 72.411262][ T155] ? vprintk_func+0x95/0x1e0 [ 72.416176][ T155] nf_unregister_net_hooks+0x117/0x160 [ 72.421661][ T155] arpt_unregister_table_pre_exit+0x67/0x80 [ 72.427572][ T155] ? arptable_filter_net_exit+0x20/0x20 [ 72.433226][ T155] cleanup_net+0x451/0xb10 [ 72.437767][ T155] ? ops_free_list.part.0+0x3d0/0x3d0 [ 72.443167][ T155] process_one_work+0x98d/0x1600 [ 72.448218][ T155] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.453618][ T155] ? rwlock_bug.part.0+0x90/0x90 [ 72.458588][ T155] ? _raw_spin_lock_irq+0x41/0x50 [ 72.463825][ T155] worker_thread+0x64c/0x1120 [ 72.468546][ T155] ? __kthread_parkme+0x13f/0x1e0 [ 72.473622][ T155] ? process_one_work+0x1600/0x1600 [ 72.478849][ T155] kthread+0x3b1/0x4a0 [ 72.483204][ T155] ? __kthread_bind_mask+0xc0/0xc0 [ 72.488342][ T155] ret_from_fork+0x1f/0x30 [ 72.494280][ T155] Kernel Offset: disabled [ 72.499107][ T155] Rebooting in 86400 seconds..