Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. 2021/05/07 09:26:34 fuzzer started 2021/05/07 09:26:35 connecting to host at 10.128.0.169:34629 2021/05/07 09:26:35 checking machine... 2021/05/07 09:26:35 checking revisions... 2021/05/07 09:26:35 testing simple program... syzkaller login: [ 78.990416][ T8398] chnl_net:caif_netlink_parms(): no params data found [ 79.048514][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.058319][ T8398] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.067231][ T8398] device bridge_slave_0 entered promiscuous mode [ 79.077124][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.085166][ T8398] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.095092][ T8398] device bridge_slave_1 entered promiscuous mode [ 79.117643][ T8398] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.131350][ T8398] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.163833][ T8398] team0: Port device team_slave_0 added [ 79.174310][ T8398] team0: Port device team_slave_1 added [ 79.199251][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.206974][ T8398] 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. [ 79.234754][ T8398] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.251638][ T8398] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.259381][ T8398] 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. [ 79.292968][ T8398] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.323837][ T8398] device hsr_slave_0 entered promiscuous mode [ 79.332032][ T8398] device hsr_slave_1 entered promiscuous mode [ 79.442649][ T8398] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.454467][ T8398] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.465549][ T8398] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.477783][ T8398] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.504741][ T8398] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.513045][ T8398] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.522140][ T8398] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.530451][ T8398] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.580017][ T8398] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.594518][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.606690][ T3156] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.620383][ T3156] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.629589][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.643991][ T8398] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.657747][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.667498][ T3168] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.674935][ T3168] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.689186][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.698415][ T3156] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.706206][ T3156] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.727499][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.738506][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.757786][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.767734][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.778124][ T8620] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.790212][ T8398] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.809705][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.818962][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.833687][ T8398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.854776][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.878798][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.891118][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.899928][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.913254][ T8398] device veth0_vlan entered promiscuous mode [ 79.928046][ T8398] device veth1_vlan entered promiscuous mode [ 79.953042][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.964252][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.974314][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.986902][ T8398] device veth0_macvtap entered promiscuous mode [ 80.001152][ T8398] device veth1_macvtap entered promiscuous mode [ 80.021629][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.031730][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.041396][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.055125][ T8398] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.067913][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.077217][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.090026][ T8398] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.099242][ T8398] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.114236][ T8398] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.125993][ T8398] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 80.219528][ T37] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.230260][ T37] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.242230][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 80.273444][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 80.284443][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 80.300936][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 09:26:38 building call list... [ 81.013026][ T37] ------------[ cut here ]------------ [ 81.019164][ T37] hook not found, pf 3 num 0 [ 81.019902][ T37] WARNING: CPU: 1 PID: 37 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 81.039827][ T37] Modules linked in: [ 81.043988][ T37] CPU: 1 PID: 37 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 81.055138][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.070152][ T37] Workqueue: netns cleanup_net [ 81.075064][ T37] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 81.082751][ T37] 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 d0 4a 8a 01 <0f> 0b e9 e5 00 00 00 e8 e9 16 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 81.105692][ T37] RSP: 0018:ffffc90000ebfbc0 EFLAGS: 00010286 [ 81.126260][ T37] RAX: 0000000000000000 RBX: ffff888024a20c00 RCX: 0000000000000000 [ 81.134497][ T37] RDX: ffff888015971c40 RSI: ffffffff815c8ba5 RDI: fffff520001d7f6a [ 81.143727][ T37] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 81.153875][ T37] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802aef8f20 [ 81.162695][ T37] R13: 0000000000000000 R14: ffff888015de7500 R15: 0000000000000001 [ 81.173363][ T37] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 81.183508][ T37] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.196693][ T37] CR2: 00007fb5d96bd000 CR3: 000000001fbc0000 CR4: 00000000001506e0 [ 81.205191][ T37] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.215592][ T37] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.226469][ T37] Call Trace: [ 81.229808][ T37] nf_unregister_net_hooks+0x117/0x160 [ 81.235572][ T37] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.243034][ T37] ? arptable_filter_net_exit+0x20/0x20 [ 81.250837][ T37] cleanup_net+0x451/0xb10 [ 81.255400][ T37] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.261991][ T37] process_one_work+0x98d/0x1600 [ 81.271289][ T37] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.278054][ T37] ? rwlock_bug.part.0+0x90/0x90 [ 81.283332][ T37] ? _raw_spin_lock_irq+0x41/0x50 [ 81.291357][ T37] worker_thread+0x64c/0x1120 [ 81.297812][ T37] ? __kthread_parkme+0x13f/0x1e0 [ 81.303144][ T37] ? process_one_work+0x1600/0x1600 [ 81.311285][ T37] kthread+0x3b1/0x4a0 [ 81.315672][ T37] ? __kthread_bind_mask+0xc0/0xc0 [ 81.322652][ T37] ret_from_fork+0x1f/0x30 [ 81.329166][ T37] Kernel panic - not syncing: panic_on_warn set ... [ 81.337044][ T37] CPU: 1 PID: 37 Comm: kworker/u4:2 Not tainted 5.12.0-syzkaller #0 [ 81.345712][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 81.357617][ T37] Workqueue: netns cleanup_net [ 81.362695][ T37] Call Trace: [ 81.366097][ T37] dump_stack+0x141/0x1d7 [ 81.370717][ T37] panic+0x306/0x73d [ 81.374990][ T37] ? __warn_printk+0xf3/0xf3 [ 81.379789][ T37] ? __warn.cold+0x1a/0x44 [ 81.384547][ T37] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.390410][ T37] __warn.cold+0x35/0x44 [ 81.395078][ T37] ? __nf_unregister_net_hook+0x1eb/0x610 [ 81.401345][ T37] report_bug+0x1bd/0x210 [ 81.405775][ T37] handle_bug+0x3c/0x60 [ 81.409926][ T37] exc_invalid_op+0x14/0x40 [ 81.414521][ T37] asm_exc_invalid_op+0x12/0x20 [ 81.419385][ T37] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 81.425868][ T37] 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 d0 4a 8a 01 <0f> 0b e9 e5 00 00 00 e8 e9 16 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 81.445767][ T37] RSP: 0018:ffffc90000ebfbc0 EFLAGS: 00010286 [ 81.452072][ T37] RAX: 0000000000000000 RBX: ffff888024a20c00 RCX: 0000000000000000 [ 81.460138][ T37] RDX: ffff888015971c40 RSI: ffffffff815c8ba5 RDI: fffff520001d7f6a [ 81.468218][ T37] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 81.476425][ T37] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802aef8f20 [ 81.484812][ T37] R13: 0000000000000000 R14: ffff888015de7500 R15: 0000000000000001 [ 81.493409][ T37] ? wake_up_klogd.part.0+0x8e/0xd0 [ 81.498708][ T37] ? vprintk+0x95/0x260 [ 81.503315][ T37] nf_unregister_net_hooks+0x117/0x160 [ 81.508988][ T37] arpt_unregister_table_pre_exit+0x67/0x80 [ 81.515438][ T37] ? arptable_filter_net_exit+0x20/0x20 [ 81.521276][ T37] cleanup_net+0x451/0xb10 [ 81.525894][ T37] ? ops_free_list.part.0+0x3d0/0x3d0 [ 81.531461][ T37] process_one_work+0x98d/0x1600 [ 81.537036][ T37] ? pwq_dec_nr_in_flight+0x320/0x320 [ 81.542431][ T37] ? rwlock_bug.part.0+0x90/0x90 [ 81.547473][ T37] ? _raw_spin_lock_irq+0x41/0x50 [ 81.552527][ T37] worker_thread+0x64c/0x1120 [ 81.557244][ T37] ? __kthread_parkme+0x13f/0x1e0 [ 81.562278][ T37] ? process_one_work+0x1600/0x1600 [ 81.567739][ T37] kthread+0x3b1/0x4a0 [ 81.571899][ T37] ? __kthread_bind_mask+0xc0/0xc0 [ 81.577195][ T37] ret_from_fork+0x1f/0x30 [ 81.583367][ T37] Kernel Offset: disabled [ 81.588096][ T37] Rebooting in 86400 seconds..