Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. 2021/05/10 12:35:41 fuzzer started 2021/05/10 12:35:41 connecting to host at 10.128.0.169:34781 2021/05/10 12:35:41 checking machine... 2021/05/10 12:35:41 checking revisions... 2021/05/10 12:35:41 testing simple program... syzkaller login: [ 77.761184][ T8443] chnl_net:caif_netlink_parms(): no params data found [ 77.827214][ T8443] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.836138][ T8443] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.846556][ T8443] device bridge_slave_0 entered promiscuous mode [ 77.856880][ T8443] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.864999][ T8443] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.873981][ T8443] device bridge_slave_1 entered promiscuous mode [ 77.896453][ T8443] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.908141][ T8443] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.932617][ T8443] team0: Port device team_slave_0 added [ 77.941786][ T8443] team0: Port device team_slave_1 added [ 77.960673][ T8443] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 77.968127][ T8443] 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. [ 77.998137][ T8443] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.013245][ T8443] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.020969][ T8443] 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. [ 78.048350][ T8443] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.077288][ T8443] device hsr_slave_0 entered promiscuous mode [ 78.086733][ T8443] device hsr_slave_1 entered promiscuous mode [ 78.197005][ T8443] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.210574][ T8443] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.222178][ T8443] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.232279][ T8443] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.261533][ T8443] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.269657][ T8443] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.278176][ T8443] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.285971][ T8443] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.338555][ T8443] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.356372][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.369336][ T3763] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.379087][ T3763] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.388813][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.404043][ T8443] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.416195][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.426964][ T3802] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.434372][ T3802] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.446234][ T4856] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.455121][ T4856] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.462575][ T4856] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.484903][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.493874][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.510989][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.520586][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.535064][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.545955][ T8443] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.566266][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.574382][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.589639][ T8443] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.611627][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.634975][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.644296][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.654110][ T3802] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.666968][ T8443] device veth0_vlan entered promiscuous mode [ 78.681743][ T8443] device veth1_vlan entered promiscuous mode [ 78.706997][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.716659][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.726195][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.739701][ T8443] device veth0_macvtap entered promiscuous mode [ 78.750601][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.761519][ T8443] device veth1_macvtap entered promiscuous mode [ 78.782305][ T8443] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.793193][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.803811][ T3763] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.817545][ T8443] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.826391][ T8665] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.837244][ T8665] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.850509][ T8443] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.860396][ T8443] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.869268][ T8443] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.878345][ T8443] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 78.971384][ T197] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.981296][ T197] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.997329][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.037247][ T157] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.047758][ T157] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.058544][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/10 12:35:44 building call list... [ 79.731279][ T197] ------------[ cut here ]------------ [ 79.737240][ T197] hook not found, pf 3 num 0 [ 79.737895][ T197] WARNING: CPU: 1 PID: 197 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 79.760681][ T197] Modules linked in: [ 79.766848][ T197] CPU: 1 PID: 197 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 79.780030][ T197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.793418][ T197] Workqueue: netns cleanup_net [ 79.798243][ T197] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 79.806357][ T197] 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 [ 79.834079][ T197] RSP: 0018:ffffc900017afbc0 EFLAGS: 00010286 [ 79.842876][ T197] RAX: 0000000000000000 RBX: ffff888023c18c00 RCX: 0000000000000000 [ 79.854806][ T197] RDX: ffff8880155c3880 RSI: ffffffff815c8ba5 RDI: fffff520002f5f6a [ 79.864904][ T197] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 79.875840][ T197] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880281c8f20 [ 79.885400][ T197] R13: 0000000000000000 R14: ffff888014b5bd00 R15: 0000000000000001 [ 79.897585][ T197] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 79.909246][ T197] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.919307][ T197] CR2: 00007f41d7e2b000 CR3: 000000001b87f000 CR4: 00000000001506e0 [ 79.929026][ T197] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.940628][ T197] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.949270][ T197] Call Trace: [ 79.954117][ T197] nf_unregister_net_hooks+0x117/0x160 [ 79.962816][ T197] arpt_unregister_table_pre_exit+0x67/0x80 [ 79.969036][ T197] ? arptable_filter_net_exit+0x20/0x20 [ 79.978613][ T197] cleanup_net+0x451/0xb10 [ 79.986812][ T197] ? ops_free_list.part.0+0x3d0/0x3d0 [ 79.994034][ T197] process_one_work+0x98d/0x1600 [ 79.999035][ T197] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.007514][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 80.013776][ T197] ? _raw_spin_lock_irq+0x41/0x50 [ 80.019139][ T197] worker_thread+0x64c/0x1120 [ 80.027196][ T197] ? __kthread_parkme+0x13f/0x1e0 [ 80.033651][ T197] ? process_one_work+0x1600/0x1600 [ 80.039109][ T197] kthread+0x3b1/0x4a0 [ 80.046414][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 80.053758][ T197] ret_from_fork+0x1f/0x30 [ 80.058342][ T197] Kernel panic - not syncing: panic_on_warn set ... [ 80.065051][ T197] CPU: 1 PID: 197 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 80.073702][ T197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.084312][ T197] Workqueue: netns cleanup_net [ 80.090594][ T197] Call Trace: [ 80.094093][ T197] dump_stack+0x141/0x1d7 [ 80.098743][ T197] panic+0x306/0x73d [ 80.102760][ T197] ? __warn_printk+0xf3/0xf3 [ 80.107584][ T197] ? __warn.cold+0x1a/0x44 [ 80.112388][ T197] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.118233][ T197] __warn.cold+0x35/0x44 [ 80.122854][ T197] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.129044][ T197] report_bug+0x1bd/0x210 [ 80.133832][ T197] handle_bug+0x3c/0x60 [ 80.138275][ T197] exc_invalid_op+0x14/0x40 [ 80.142895][ T197] asm_exc_invalid_op+0x12/0x20 [ 80.148042][ T197] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 80.154397][ T197] 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 [ 80.175233][ T197] RSP: 0018:ffffc900017afbc0 EFLAGS: 00010286 [ 80.181408][ T197] RAX: 0000000000000000 RBX: ffff888023c18c00 RCX: 0000000000000000 [ 80.189843][ T197] RDX: ffff8880155c3880 RSI: ffffffff815c8ba5 RDI: fffff520002f5f6a [ 80.197920][ T197] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.206114][ T197] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880281c8f20 [ 80.214636][ T197] R13: 0000000000000000 R14: ffff888014b5bd00 R15: 0000000000000001 [ 80.222644][ T197] ? wake_up_klogd.part.0+0x8e/0xd0 [ 80.227980][ T197] ? vprintk+0x95/0x260 [ 80.232167][ T197] nf_unregister_net_hooks+0x117/0x160 [ 80.237742][ T197] arpt_unregister_table_pre_exit+0x67/0x80 [ 80.243746][ T197] ? arptable_filter_net_exit+0x20/0x20 [ 80.249509][ T197] cleanup_net+0x451/0xb10 [ 80.254129][ T197] ? ops_free_list.part.0+0x3d0/0x3d0 [ 80.259723][ T197] process_one_work+0x98d/0x1600 [ 80.266031][ T197] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.271533][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 80.276623][ T197] ? _raw_spin_lock_irq+0x41/0x50 [ 80.282111][ T197] worker_thread+0x64c/0x1120 [ 80.286823][ T197] ? __kthread_parkme+0x13f/0x1e0 [ 80.292216][ T197] ? process_one_work+0x1600/0x1600 [ 80.297432][ T197] kthread+0x3b1/0x4a0 [ 80.301859][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 80.307090][ T197] ret_from_fork+0x1f/0x30 [ 80.311971][ T197] Kernel Offset: disabled [ 80.316941][ T197] Rebooting in 86400 seconds..