Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts. 2021/05/06 15:45:03 fuzzer started 2021/05/06 15:45:03 connecting to host at 10.128.0.169:37933 2021/05/06 15:45:03 checking machine... 2021/05/06 15:45:03 checking revisions... 2021/05/06 15:45:03 testing simple program... syzkaller login: [ 75.484637][ T8432] chnl_net:caif_netlink_parms(): no params data found [ 75.539160][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.548793][ T8432] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.559687][ T8432] device bridge_slave_0 entered promiscuous mode [ 75.569035][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.577890][ T8432] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.587509][ T8432] device bridge_slave_1 entered promiscuous mode [ 75.608823][ T8432] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.621132][ T8432] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.645086][ T8432] team0: Port device team_slave_0 added [ 75.653679][ T8432] team0: Port device team_slave_1 added [ 75.671934][ T8432] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.681030][ T8432] 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. [ 75.709371][ T8432] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.722957][ T8432] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.730688][ T8432] 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. [ 75.760090][ T8432] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.790116][ T8432] device hsr_slave_0 entered promiscuous mode [ 75.797406][ T8432] device hsr_slave_1 entered promiscuous mode [ 75.906570][ T8432] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.918093][ T8432] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.932452][ T8432] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.948264][ T8432] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.985948][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.994382][ T8432] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.004494][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.012451][ T8432] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.062045][ T8432] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.076680][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.091582][ T20] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.101032][ T20] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.110371][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.124518][ T8432] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.137280][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.152019][ T20] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.159817][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.174147][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.184712][ T3147] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.192005][ T3147] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.215395][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.226450][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.243242][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.256105][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.271451][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.283862][ T8432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.303274][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.312050][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.327214][ T8432] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.351284][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.373716][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.383092][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.392485][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.405041][ T8432] device veth0_vlan entered promiscuous mode [ 76.418618][ T8432] device veth1_vlan entered promiscuous mode [ 76.444531][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.454080][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.463487][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.474917][ T8432] device veth0_macvtap entered promiscuous mode [ 76.485285][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.496535][ T8432] device veth1_macvtap entered promiscuous mode [ 76.517380][ T8432] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.526450][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.537512][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.551390][ T8432] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.563745][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.573573][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.586465][ T8432] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.605113][ T8432] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.616045][ T8432] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.625518][ T8432] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.726497][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.736019][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 76.767336][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.788671][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.797391][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.810173][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/06 15:45:06 building call list... [ 77.463455][ T9] ------------[ cut here ]------------ [ 77.472191][ T9] hook not found, pf 3 num 0 [ 77.472834][ T9] WARNING: CPU: 0 PID: 9 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.492676][ T9] Modules linked in: [ 77.497849][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 77.507848][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.520546][ T9] Workqueue: netns cleanup_net [ 77.525902][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.534024][ 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 [ 77.560445][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 77.568761][ T9] RAX: 0000000000000000 RBX: ffff888149eae400 RCX: 0000000000000000 [ 77.578169][ T9] RDX: ffff888011d68000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 77.587898][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.597070][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802fb30f20 [ 77.609640][ T9] R13: 0000000000000000 R14: ffff888016b17b00 R15: 0000000000000001 [ 77.618199][ T9] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.636462][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.644403][ T9] CR2: 00007fec41188000 CR3: 000000001faa6000 CR4: 00000000001506f0 [ 77.654858][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.665414][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.676107][ T9] Call Trace: [ 77.680192][ T9] nf_unregister_net_hooks+0x117/0x160 [ 77.686504][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.694811][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 77.703961][ T9] cleanup_net+0x451/0xb10 [ 77.708858][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.716455][ T9] process_one_work+0x98d/0x1600 [ 77.722558][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.728133][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 77.735202][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 77.742235][ T9] worker_thread+0x64c/0x1120 [ 77.747767][ T9] ? process_one_work+0x1600/0x1600 [ 77.755371][ T9] kthread+0x3b1/0x4a0 [ 77.760474][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 77.765969][ T9] ret_from_fork+0x1f/0x30 [ 77.771359][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 77.778935][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.12.0-syzkaller #0 [ 77.787493][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.798858][ T9] Workqueue: netns cleanup_net [ 77.804910][ T9] Call Trace: [ 77.808548][ T9] dump_stack+0x141/0x1d7 [ 77.813238][ T9] panic+0x306/0x73d [ 77.817697][ T9] ? __warn_printk+0xf3/0xf3 [ 77.822401][ T9] ? __warn.cold+0x1a/0x44 [ 77.827308][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.833994][ T9] __warn.cold+0x35/0x44 [ 77.838424][ T9] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.844335][ T9] report_bug+0x1bd/0x210 [ 77.848753][ T9] handle_bug+0x3c/0x60 [ 77.853096][ T9] exc_invalid_op+0x14/0x40 [ 77.857682][ T9] asm_exc_invalid_op+0x12/0x20 [ 77.862623][ T9] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.869256][ 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 [ 77.889599][ T9] RSP: 0018:ffffc90000ce7bc0 EFLAGS: 00010286 [ 77.896164][ T9] RAX: 0000000000000000 RBX: ffff888149eae400 RCX: 0000000000000000 [ 77.904492][ T9] RDX: ffff888011d68000 RSI: ffffffff815c8ba5 RDI: fffff5200019cf6a [ 77.912803][ T9] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.921215][ T9] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802fb30f20 [ 77.929357][ T9] R13: 0000000000000000 R14: ffff888016b17b00 R15: 0000000000000001 [ 77.937648][ T9] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.943451][ T9] ? vprintk+0x95/0x260 [ 77.947615][ T9] nf_unregister_net_hooks+0x117/0x160 [ 77.953618][ T9] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.959597][ T9] ? arptable_filter_net_exit+0x20/0x20 [ 77.965486][ T9] cleanup_net+0x451/0xb10 [ 77.969996][ T9] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.975997][ T9] process_one_work+0x98d/0x1600 [ 77.980983][ T9] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.986826][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 77.992181][ T9] ? _raw_spin_lock_irq+0x41/0x50 [ 77.997222][ T9] worker_thread+0x64c/0x1120 [ 78.002146][ T9] ? process_one_work+0x1600/0x1600 [ 78.007834][ T9] kthread+0x3b1/0x4a0 [ 78.012090][ T9] ? __kthread_bind_mask+0xc0/0xc0 [ 78.017219][ T9] ret_from_fork+0x1f/0x30 [ 78.023508][ T9] Kernel Offset: disabled [ 78.028233][ T9] Rebooting in 86400 seconds..