Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.184' (ECDSA) to the list of known hosts. 2021/05/10 11:40:12 fuzzer started 2021/05/10 11:40:12 connecting to host at 10.128.0.169:33253 2021/05/10 11:40:12 checking machine... 2021/05/10 11:40:12 checking revisions... 2021/05/10 11:40:12 testing simple program... syzkaller login: [ 75.385474][ T8429] chnl_net:caif_netlink_parms(): no params data found [ 75.498051][ T8429] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.515293][ T8429] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.524688][ T8429] device bridge_slave_0 entered promiscuous mode [ 75.534776][ T8429] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.542584][ T8429] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.550731][ T8429] device bridge_slave_1 entered promiscuous mode [ 75.571295][ T8429] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.583247][ T8429] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.605824][ T8429] team0: Port device team_slave_0 added [ 75.614563][ T8429] team0: Port device team_slave_1 added [ 75.631153][ T8429] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.638284][ T8429] 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. [ 75.665213][ T8429] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.677968][ T8429] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.685642][ T8429] 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. [ 75.712924][ T8429] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.746855][ T8429] device hsr_slave_0 entered promiscuous mode [ 75.756116][ T8429] device hsr_slave_1 entered promiscuous mode [ 75.859582][ T8429] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.870499][ T8429] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.880986][ T8429] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.891348][ T8429] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.917268][ T8429] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.924868][ T8429] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.933111][ T8429] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.940603][ T8429] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.986433][ T8429] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.999581][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.012896][ T27] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.022379][ T27] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.030386][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.047518][ T8429] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.059705][ T3821] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.069410][ T3821] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.076594][ T3821] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.093882][ T3821] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.103139][ T3821] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.110313][ T3821] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.127690][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.136421][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.149097][ T3821] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.165935][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.177282][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.189087][ T8429] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.208833][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.216468][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.230271][ T8429] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.249841][ T27] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.270282][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.279484][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.288521][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.300529][ T8429] device veth0_vlan entered promiscuous mode [ 76.313752][ T8429] device veth1_vlan entered promiscuous mode [ 76.337979][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.347198][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.357145][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.370394][ T8429] device veth0_macvtap entered promiscuous mode [ 76.379947][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.392475][ T8429] device veth1_macvtap entered promiscuous mode [ 76.411412][ T8429] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.424053][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.434128][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.448569][ T8429] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.458780][ T8652] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.468876][ T8652] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.481244][ T8429] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.502683][ T8429] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.511791][ T8429] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.523376][ T8429] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.655096][ T8379] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.669959][ T8379] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.690985][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 76.713582][ T8379] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.722601][ T8379] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.743554][ T8650] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/10 11:40:15 building call list... [ 77.464735][ T25] ------------[ cut here ]------------ [ 77.471007][ T25] hook not found, pf 3 num 0 [ 77.476638][ T25] WARNING: CPU: 0 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.495263][ T25] Modules linked in: [ 77.499322][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 77.509868][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.524072][ T25] Workqueue: netns cleanup_net [ 77.529028][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.537316][ T25] 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 [ 77.559662][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 77.566233][ T25] RAX: 0000000000000000 RBX: ffff888024413c00 RCX: 0000000000000000 [ 77.574385][ T25] RDX: ffff888015763880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 77.582612][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.590602][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880265f0f20 [ 77.598983][ T25] R13: 0000000000000000 R14: ffff88801b333f00 R15: 0000000000000001 [ 77.607524][ T25] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 77.620495][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.627831][ T25] CR2: 000000c000a00000 CR3: 00000000269df000 CR4: 00000000001506e0 [ 77.635986][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.644302][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.653883][ T25] Call Trace: [ 77.657198][ T25] nf_unregister_net_hooks+0x117/0x160 [ 77.662946][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.669455][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 77.675229][ T25] cleanup_net+0x451/0xb10 [ 77.679806][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.686882][ T25] process_one_work+0x98d/0x1600 [ 77.696321][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.702161][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 77.707317][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 77.713019][ T25] worker_thread+0x64c/0x1120 [ 77.718022][ T25] ? process_one_work+0x1600/0x1600 [ 77.723449][ T25] kthread+0x3b1/0x4a0 [ 77.727640][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 77.732962][ T25] ret_from_fork+0x1f/0x30 [ 77.737520][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 77.744123][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 77.752213][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.762655][ T25] Workqueue: netns cleanup_net [ 77.767435][ T25] Call Trace: [ 77.770793][ T25] dump_stack+0x141/0x1d7 [ 77.775227][ T25] panic+0x306/0x73d [ 77.779124][ T25] ? __warn_printk+0xf3/0xf3 [ 77.783718][ T25] ? __warn.cold+0x1a/0x44 [ 77.788420][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.794163][ T25] __warn.cold+0x35/0x44 [ 77.798582][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.804328][ T25] report_bug+0x1bd/0x210 [ 77.808832][ T25] handle_bug+0x3c/0x60 [ 77.813005][ T25] exc_invalid_op+0x14/0x40 [ 77.817612][ T25] asm_exc_invalid_op+0x12/0x20 [ 77.822642][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.829104][ T25] 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 [ 77.849435][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 77.855538][ T25] RAX: 0000000000000000 RBX: ffff888024413c00 RCX: 0000000000000000 [ 77.863690][ T25] RDX: ffff888015763880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 77.871839][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.879974][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880265f0f20 [ 77.888163][ T25] R13: 0000000000000000 R14: ffff88801b333f00 R15: 0000000000000001 [ 77.896528][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.902106][ T25] ? vprintk+0x95/0x260 [ 77.906370][ T25] nf_unregister_net_hooks+0x117/0x160 [ 77.912189][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.918093][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 77.923756][ T25] cleanup_net+0x451/0xb10 [ 77.928364][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.934375][ T25] process_one_work+0x98d/0x1600 [ 77.939443][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.945003][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 77.950202][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 77.955253][ T25] worker_thread+0x64c/0x1120 [ 77.960059][ T25] ? process_one_work+0x1600/0x1600 [ 77.965377][ T25] kthread+0x3b1/0x4a0 [ 77.969494][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 77.974694][ T25] ret_from_fork+0x1f/0x30 [ 77.980797][ T25] Kernel Offset: disabled [ 77.985446][ T25] Rebooting in 86400 seconds..