Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. 2021/05/08 00:03:50 fuzzer started 2021/05/08 00:03:50 connecting to host at 10.128.0.169:42875 2021/05/08 00:03:50 checking machine... 2021/05/08 00:03:50 checking revisions... 2021/05/08 00:03:50 testing simple program... syzkaller login: [ 75.172920][ T8441] chnl_net:caif_netlink_parms(): no params data found [ 75.227199][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.236720][ T8441] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.245638][ T8441] device bridge_slave_0 entered promiscuous mode [ 75.256001][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.263147][ T8441] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.271921][ T8441] device bridge_slave_1 entered promiscuous mode [ 75.293375][ T8441] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.305187][ T8441] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.329757][ T8441] team0: Port device team_slave_0 added [ 75.339829][ T8441] team0: Port device team_slave_1 added [ 75.357803][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.365235][ T8441] 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. [ 75.392178][ T8441] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.406193][ T8441] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.413154][ T8441] 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. [ 75.439092][ T8441] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.468119][ T8441] device hsr_slave_0 entered promiscuous mode [ 75.476123][ T8441] device hsr_slave_1 entered promiscuous mode [ 75.586783][ T8441] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.599810][ T8441] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.612056][ T8441] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.623291][ T8441] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.650561][ T8441] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.657807][ T8441] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.666088][ T8441] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.673546][ T8441] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.721788][ T8441] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.737238][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.748848][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.758778][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.767462][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.781555][ T8441] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.794959][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.803664][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.810869][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.822673][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.832335][ T2950] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.839790][ T2950] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.860185][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.878040][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.887227][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.896870][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.911959][ T8441] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.925075][ T8441] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.925959][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.952603][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.960434][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.976787][ T8441] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.997499][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.019960][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.029116][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.039600][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.051004][ T8441] device veth0_vlan entered promiscuous mode [ 76.063241][ T8441] device veth1_vlan entered promiscuous mode [ 76.085793][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.095618][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.104763][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.116829][ T8441] device veth0_macvtap entered promiscuous mode [ 76.126718][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.138473][ T8441] device veth1_macvtap entered promiscuous mode [ 76.157836][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.165685][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.175604][ T8654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.187910][ T8441] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.196800][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.205956][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.218131][ T8441] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.228014][ T8441] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.238960][ T8441] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.247961][ T8441] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 76.351694][ T89] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.365364][ T89] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.391335][ T445] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.396816][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.401082][ T445] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.419107][ T2950] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/08 00:03:53 building call list... [ 77.155538][ T89] ------------[ cut here ]------------ [ 77.161393][ T89] hook not found, pf 3 num 0 [ 77.162213][ T89] WARNING: CPU: 1 PID: 89 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.179520][ T89] Modules linked in: [ 77.184971][ T89] CPU: 1 PID: 89 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 77.193302][ T89] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.205753][ T89] Workqueue: netns cleanup_net [ 77.212856][ T89] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.223498][ T89] 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 a1 6e 8a e8 d8 67 8a 01 <0f> 0b e9 e5 00 00 00 e8 b9 8a 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.247793][ T89] RSP: 0018:ffffc900010bfbc0 EFLAGS: 00010286 [ 77.254142][ T89] RAX: 0000000000000000 RBX: ffff888027e28f00 RCX: 0000000000000000 [ 77.262228][ T89] RDX: ffff888015789c40 RSI: ffffffff815cc9a5 RDI: fffff52000217f6a [ 77.271809][ T89] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.280356][ T89] R10: ffffffff815c680e R11: 0000000000000000 R12: ffff88801dd28f20 [ 77.290498][ T89] R13: 0000000000000000 R14: ffff888019775080 R15: 0000000000000001 [ 77.302809][ T89] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.313423][ T89] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.320165][ T89] CR2: 000000c000c00000 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 77.330197][ T89] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.338660][ T89] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.348940][ T89] Call Trace: [ 77.352531][ T89] nf_unregister_net_hooks+0x117/0x160 [ 77.359531][ T89] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.367277][ T89] ? arptable_filter_net_exit+0x20/0x20 [ 77.372866][ T89] cleanup_net+0x451/0xb10 [ 77.379863][ T89] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.386925][ T89] process_one_work+0x98d/0x1600 [ 77.392094][ T89] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.398063][ T89] ? rwlock_bug.part.0+0x90/0x90 [ 77.403022][ T89] ? _raw_spin_lock_irq+0x41/0x50 [ 77.409677][ T89] worker_thread+0x64c/0x1120 [ 77.414777][ T89] ? __kthread_parkme+0x13f/0x1e0 [ 77.419995][ T89] ? process_one_work+0x1600/0x1600 [ 77.427133][ T89] kthread+0x3b1/0x4a0 [ 77.431715][ T89] ? __kthread_bind_mask+0xc0/0xc0 [ 77.437774][ T89] ret_from_fork+0x1f/0x30 [ 77.442255][ T89] Kernel panic - not syncing: panic_on_warn set ... [ 77.448865][ T89] CPU: 0 PID: 89 Comm: kworker/u4:3 Not tainted 5.12.0-syzkaller #0 [ 77.456943][ T89] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.467201][ T89] Workqueue: netns cleanup_net [ 77.471993][ T89] Call Trace: [ 77.475281][ T89] dump_stack+0x141/0x1d7 [ 77.479717][ T89] panic+0x306/0x73d [ 77.483672][ T89] ? __warn_printk+0xf3/0xf3 [ 77.488291][ T89] ? __warn.cold+0x1a/0x44 [ 77.492731][ T89] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.498471][ T89] __warn.cold+0x35/0x44 [ 77.502726][ T89] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.508463][ T89] report_bug+0x1bd/0x210 [ 77.512815][ T89] handle_bug+0x3c/0x60 [ 77.516983][ T89] exc_invalid_op+0x14/0x40 [ 77.521502][ T89] asm_exc_invalid_op+0x12/0x20 [ 77.526474][ T89] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.533007][ T89] 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 a1 6e 8a e8 d8 67 8a 01 <0f> 0b e9 e5 00 00 00 e8 b9 8a 2a fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.553008][ T89] RSP: 0018:ffffc900010bfbc0 EFLAGS: 00010286 [ 77.559179][ T89] RAX: 0000000000000000 RBX: ffff888027e28f00 RCX: 0000000000000000 [ 77.567273][ T89] RDX: ffff888015789c40 RSI: ffffffff815cc9a5 RDI: fffff52000217f6a [ 77.575256][ T89] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.583235][ T89] R10: ffffffff815c680e R11: 0000000000000000 R12: ffff88801dd28f20 [ 77.591334][ T89] R13: 0000000000000000 R14: ffff888019775080 R15: 0000000000000001 [ 77.599507][ T89] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.604966][ T89] ? vprintk+0x95/0x260 [ 77.609164][ T89] nf_unregister_net_hooks+0x117/0x160 [ 77.614652][ T89] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.620670][ T89] ? arptable_filter_net_exit+0x20/0x20 [ 77.626240][ T89] cleanup_net+0x451/0xb10 [ 77.630682][ T89] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.636195][ T89] process_one_work+0x98d/0x1600 [ 77.641171][ T89] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.646579][ T89] ? rwlock_bug.part.0+0x90/0x90 [ 77.651541][ T89] ? _raw_spin_lock_irq+0x41/0x50 [ 77.656601][ T89] worker_thread+0x64c/0x1120 [ 77.661353][ T89] ? __kthread_parkme+0x13f/0x1e0 [ 77.666602][ T89] ? process_one_work+0x1600/0x1600 [ 77.671832][ T89] kthread+0x3b1/0x4a0 [ 77.675924][ T89] ? __kthread_bind_mask+0xc0/0xc0 [ 77.681060][ T89] ret_from_fork+0x1f/0x30 [ 77.687292][ T89] Kernel Offset: disabled [ 77.692167][ T89] Rebooting in 86400 seconds..