Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.28' (ECDSA) to the list of known hosts. 2021/05/11 18:48:37 fuzzer started 2021/05/11 18:48:37 connecting to host at 10.128.0.169:43763 2021/05/11 18:48:37 checking machine... 2021/05/11 18:48:37 checking revisions... 2021/05/11 18:48:37 testing simple program... syzkaller login: [ 73.487933][ T8428] chnl_net:caif_netlink_parms(): no params data found [ 73.539661][ T8428] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.549053][ T8428] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.557576][ T8428] device bridge_slave_0 entered promiscuous mode [ 73.567249][ T8428] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.575910][ T8428] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.584988][ T8428] device bridge_slave_1 entered promiscuous mode [ 73.605413][ T8428] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.617481][ T8428] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.642056][ T8428] team0: Port device team_slave_0 added [ 73.649984][ T8428] team0: Port device team_slave_1 added [ 73.667570][ T8428] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.674902][ T8428] 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. [ 73.703914][ T8428] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.717315][ T8428] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.724715][ T8428] 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. [ 73.753009][ T8428] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.781937][ T8428] device hsr_slave_0 entered promiscuous mode [ 73.788976][ T8428] device hsr_slave_1 entered promiscuous mode [ 73.916241][ T8428] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.928397][ T8428] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.938970][ T8428] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.949672][ T8428] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.975817][ T8428] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.983348][ T8428] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.992060][ T8428] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.999174][ T8428] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.048619][ T8428] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.064701][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.076419][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.087478][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.096744][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.111477][ T8428] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.125556][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.134107][ T3146] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.141631][ T3146] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.163705][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.172367][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.179412][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.188469][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.204679][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.213347][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.226842][ T4548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 74.239064][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.253014][ T8428] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 74.272386][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.281628][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.295636][ T8428] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.315769][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.337581][ T8428] device veth0_vlan entered promiscuous mode [ 74.346698][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.356284][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.365025][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.379812][ T8428] device veth1_vlan entered promiscuous mode [ 74.389116][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.413764][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.423250][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.437750][ T8428] device veth0_macvtap entered promiscuous mode [ 74.451771][ T8428] device veth1_macvtap entered promiscuous mode [ 74.471500][ T8428] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.479194][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 74.490198][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.503057][ T8428] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.513593][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.522679][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.535790][ T8428] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.545432][ T8428] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.554735][ T8428] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.563682][ T8428] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 74.668354][ T4469] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.681900][ T4469] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.704322][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 74.720144][ T4469] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 74.731215][ T4469] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 74.741062][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/11 18:48:40 building call list... [ 75.395593][ T4469] ------------[ cut here ]------------ [ 75.410328][ T4469] hook not found, pf 3 num 0 [ 75.410943][ T4469] WARNING: CPU: 1 PID: 4469 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 75.431085][ T4469] Modules linked in: [ 75.435115][ T4469] CPU: 1 PID: 4469 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 75.446387][ T4469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.457572][ T4469] Workqueue: netns cleanup_net [ 75.465144][ T4469] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.472489][ T4469] 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 10 58 8a 01 <0f> 0b e9 e5 00 00 00 e8 29 14 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.496040][ T4469] RSP: 0018:ffffc9000a0efbc0 EFLAGS: 00010286 [ 75.503667][ T4469] RAX: 0000000000000000 RBX: ffff888149fabe00 RCX: 0000000000000000 [ 75.514265][ T4469] RDX: ffff888023efd4c0 RSI: ffffffff815c8ba5 RDI: fffff5200141df6a [ 75.523052][ T4469] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.534151][ T4469] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880383e8f20 [ 75.545541][ T4469] R13: 0000000000000000 R14: ffff888018a64700 R15: 0000000000000001 [ 75.556076][ T4469] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 75.565904][ T4469] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.574851][ T4469] CR2: 00007fea7c797000 CR3: 0000000015fc4000 CR4: 00000000001506e0 [ 75.583719][ T4469] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.594303][ T4469] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.603778][ T4469] Call Trace: [ 75.607107][ T4469] nf_unregister_net_hooks+0x117/0x160 [ 75.615451][ T4469] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.625870][ T4469] ? arptable_filter_net_exit+0x20/0x20 [ 75.633944][ T4469] cleanup_net+0x451/0xb10 [ 75.638499][ T4469] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.645385][ T4469] process_one_work+0x98d/0x1600 [ 75.652895][ T4469] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.658844][ T4469] ? rwlock_bug.part.0+0x90/0x90 [ 75.665622][ T4469] ? _raw_spin_lock_irq+0x41/0x50 [ 75.673374][ T4469] worker_thread+0x64c/0x1120 [ 75.678392][ T4469] ? __kthread_parkme+0x13f/0x1e0 [ 75.685178][ T4469] ? process_one_work+0x1600/0x1600 [ 75.693009][ T4469] kthread+0x3b1/0x4a0 [ 75.697555][ T4469] ? __kthread_bind_mask+0xc0/0xc0 [ 75.705432][ T4469] ret_from_fork+0x1f/0x30 [ 75.710500][ T4469] Kernel panic - not syncing: panic_on_warn set ... [ 75.718217][ T4469] CPU: 1 PID: 4469 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 [ 75.726622][ T4469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.738424][ T4469] Workqueue: netns cleanup_net [ 75.743640][ T4469] Call Trace: [ 75.746931][ T4469] dump_stack+0x141/0x1d7 [ 75.751530][ T4469] panic+0x306/0x73d [ 75.755861][ T4469] ? __warn_printk+0xf3/0xf3 [ 75.760686][ T4469] ? __warn.cold+0x1a/0x44 [ 75.765120][ T4469] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.771279][ T4469] __warn.cold+0x35/0x44 [ 75.775725][ T4469] ? __nf_unregister_net_hook+0x1eb/0x610 [ 75.781878][ T4469] report_bug+0x1bd/0x210 [ 75.786383][ T4469] handle_bug+0x3c/0x60 [ 75.790655][ T4469] exc_invalid_op+0x14/0x40 [ 75.795446][ T4469] asm_exc_invalid_op+0x12/0x20 [ 75.800494][ T4469] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 75.807759][ T4469] 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 10 58 8a 01 <0f> 0b e9 e5 00 00 00 e8 29 14 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 75.828535][ T4469] RSP: 0018:ffffc9000a0efbc0 EFLAGS: 00010286 [ 75.834695][ T4469] RAX: 0000000000000000 RBX: ffff888149fabe00 RCX: 0000000000000000 [ 75.842837][ T4469] RDX: ffff888023efd4c0 RSI: ffffffff815c8ba5 RDI: fffff5200141df6a [ 75.851497][ T4469] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 75.859646][ T4469] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880383e8f20 [ 75.867765][ T4469] R13: 0000000000000000 R14: ffff888018a64700 R15: 0000000000000001 [ 75.878382][ T4469] ? wake_up_klogd.part.0+0x8e/0xd0 [ 75.883953][ T4469] ? vprintk+0x95/0x260 [ 75.888220][ T4469] nf_unregister_net_hooks+0x117/0x160 [ 75.893694][ T4469] arpt_unregister_table_pre_exit+0x67/0x80 [ 75.899586][ T4469] ? arptable_filter_net_exit+0x20/0x20 [ 75.905145][ T4469] cleanup_net+0x451/0xb10 [ 75.909743][ T4469] ? ops_free_list.part.0+0x3d0/0x3d0 [ 75.915211][ T4469] process_one_work+0x98d/0x1600 [ 75.920158][ T4469] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.925540][ T4469] ? rwlock_bug.part.0+0x90/0x90 [ 75.930476][ T4469] ? _raw_spin_lock_irq+0x41/0x50 [ 75.935510][ T4469] worker_thread+0x64c/0x1120 [ 75.940342][ T4469] ? __kthread_parkme+0x13f/0x1e0 [ 75.945621][ T4469] ? process_one_work+0x1600/0x1600 [ 75.950818][ T4469] kthread+0x3b1/0x4a0 [ 75.954879][ T4469] ? __kthread_bind_mask+0xc0/0xc0 [ 75.960211][ T4469] ret_from_fork+0x1f/0x30 [ 75.966064][ T4469] Kernel Offset: disabled [ 75.970656][ T4469] Rebooting in 86400 seconds..