Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.204' (ECDSA) to the list of known hosts. 2021/05/04 21:47:29 fuzzer started 2021/05/04 21:47:29 connecting to host at 10.128.0.169:43049 2021/05/04 21:47:29 checking machine... 2021/05/04 21:47:29 checking revisions... 2021/05/04 21:47:29 testing simple program... syzkaller login: [ 74.693186][ T8439] chnl_net:caif_netlink_parms(): no params data found [ 74.782586][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.793170][ T8439] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.803170][ T8439] device bridge_slave_0 entered promiscuous mode [ 74.812990][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.821354][ T8439] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.829044][ T8439] device bridge_slave_1 entered promiscuous mode [ 74.850347][ T8439] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.863438][ T8439] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.887476][ T8439] team0: Port device team_slave_0 added [ 74.894895][ T8439] team0: Port device team_slave_1 added [ 74.913380][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.920846][ T8439] 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. [ 74.947349][ T8439] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.961211][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.968896][ T8439] 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. [ 74.995438][ T8439] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.024584][ T8439] device hsr_slave_0 entered promiscuous mode [ 75.031718][ T8439] device hsr_slave_1 entered promiscuous mode [ 75.138586][ T8439] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.149727][ T8439] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.160089][ T8439] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.172092][ T8439] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.206189][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.213528][ T8439] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.221785][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.228838][ T8439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.277805][ T8439] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.292316][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.304886][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.314166][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.323777][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.337872][ T8439] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.349719][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.359303][ T4861] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.366574][ T4861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.383034][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.391670][ T4861] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.398995][ T4861] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.427607][ T8439] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.439047][ T8439] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.454055][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.463738][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.473196][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.483200][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.493823][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.502392][ T4861] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.522441][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.530055][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.543833][ T8439] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.566905][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.588029][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.597895][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.607150][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.618182][ T8439] device veth0_vlan entered promiscuous mode [ 75.631695][ T8439] device veth1_vlan entered promiscuous mode [ 75.657318][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.665965][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.675259][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.687209][ T8439] device veth0_macvtap entered promiscuous mode [ 75.698640][ T8439] device veth1_macvtap entered promiscuous mode [ 75.717869][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.727580][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 75.737177][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.751154][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.763551][ T8439] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.773132][ T8439] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.787535][ T8439] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.797136][ T8439] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 75.808335][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.818841][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.915027][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.942030][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.955653][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 75.966379][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 75.975324][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 75.985637][ T4020] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/04 21:47:32 building call list... [ 76.595821][ T9] ------------[ cut here ]------------ [ 76.607532][ T9] hook not found, pf 3 num 0 [ 76.608180][ T9] WARNING: CPU: 1 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 76.626863][ T9] Modules linked in: [ 76.635065][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 76.645796][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.658049][ T9] Workqueue: netns cleanup_net [ 76.668242][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 76.677200][ T9] 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 [ 76.700381][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 76.706680][ T9] RAX: 0000000000000000 RBX: ffff888023c0ce00 RCX: 0000000000000000 [ 76.721375][ T9] RDX: ffff888011d50000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 76.729735][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 76.739300][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c6e0f20 [ 76.750321][ T9] R13: 0000000000000000 R14: ffff88801602ba80 R15: 0000000000000001 [ 76.758352][ T9] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 76.771151][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.778373][ T9] CR2: 00007f1fb651c028 CR3: 0000000012376000 CR4: 00000000001506e0 [ 76.788014][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.800573][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.808672][ T9] Call Trace: [ 76.814093][ T9] nf_unregister_net_hooks+0x117/0x160 [ 76.819874][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 76.828578][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 76.835260][ T9] cleanup_net+0x451/0xb10 [ 76.839731][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 76.849672][ T9] process_one_work+0x98d/0x1600 [ 76.855841][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 76.863549][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 76.868721][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 76.879889][ T9] worker_thread+0x64c/0x1120 [ 76.887345][ T9] ? process_one_work+0x1600/0x1600 [ 76.893498][ T9] kthread+0x3b1/0x4a0 [ 76.897875][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 76.905806][ T9] ret_from_fork+0x1f/0x30 [ 76.911413][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 76.918026][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 76.926377][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.936819][ T9] Workqueue: netns cleanup_net [ 76.941703][ T9] Call Trace: [ 76.945257][ T9] dump_stack+0x141/0x1d7 [ 76.949670][ T9] panic+0x306/0x73d [ 76.954090][ T9] ? __warn_printk+0xf3/0xf3 [ 76.959695][ T9] ? __warn.cold+0x1a/0x44 [ 76.964389][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.970217][ T9] __warn.cold+0x35/0x44 [ 76.974570][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 76.980487][ T9] report_bug+0x1bd/0x210 [ 76.985374][ T9] handle_bug+0x3c/0x60 [ 76.989593][ T9] exc_invalid_op+0x14/0x40 [ 76.994218][ T9] asm_exc_invalid_op+0x12/0x20 [ 76.999394][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.006084][ T9] 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 [ 77.026164][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 77.032359][ T9] RAX: 0000000000000000 RBX: ffff888023c0ce00 RCX: 0000000000000000 [ 77.040735][ T9] RDX: ffff888011d50000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 77.048825][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.056819][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88801c6e0f20 [ 77.064894][ T9] R13: 0000000000000000 R14: ffff88801602ba80 R15: 0000000000000001 [ 77.073082][ T9] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.079028][ T9] ? vprintk+0x95/0x260 [ 77.083378][ T9] nf_unregister_net_hooks+0x117/0x160 [ 77.088882][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.094975][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 77.100627][ T9] cleanup_net+0x451/0xb10 [ 77.105456][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.111329][ T9] process_one_work+0x98d/0x1600 [ 77.116499][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.121903][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 77.126945][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 77.132016][ T9] worker_thread+0x64c/0x1120 [ 77.136731][ T9] ? process_one_work+0x1600/0x1600 [ 77.142142][ T9] kthread+0x3b1/0x4a0 [ 77.146315][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 77.151452][ T9] ret_from_fork+0x1f/0x30 [ 77.157754][ T9] Kernel Offset: disabled [ 77.162487][ T9] Rebooting in 86400 seconds..