Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.251' (ECDSA) to the list of known hosts. 2021/05/07 22:20:03 fuzzer started 2021/05/07 22:20:04 connecting to host at 10.128.0.169:44473 2021/05/07 22:20:04 checking machine... 2021/05/07 22:20:04 checking revisions... 2021/05/07 22:20:04 testing simple program... syzkaller login: [ 75.029672][ T8430] chnl_net:caif_netlink_parms(): no params data found [ 75.093900][ T8430] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.102441][ T8430] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.114825][ T8430] device bridge_slave_0 entered promiscuous mode [ 75.125119][ T8430] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.134151][ T8430] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.142964][ T8430] device bridge_slave_1 entered promiscuous mode [ 75.169646][ T8430] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.181006][ T8430] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.204122][ T8430] team0: Port device team_slave_0 added [ 75.213145][ T8430] team0: Port device team_slave_1 added [ 75.231657][ T8430] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.239267][ T8430] 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. [ 75.266435][ T8430] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.280113][ T8430] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.287076][ T8430] 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. [ 75.313722][ T8430] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.339481][ T8430] device hsr_slave_0 entered promiscuous mode [ 75.346276][ T8430] device hsr_slave_1 entered promiscuous mode [ 75.451441][ T8430] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.463058][ T8430] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.473397][ T8430] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.483892][ T8430] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.508178][ T8430] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.515854][ T8430] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.523688][ T8430] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.531186][ T8430] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.582060][ T8430] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.596629][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.610487][ T4083] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.620372][ T4083] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.629616][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.646890][ T8430] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.661336][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.670772][ T4808] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.679391][ T4808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.692227][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.701577][ T4083] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.709029][ T4083] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.733316][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.743225][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.760900][ T8430] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.773955][ T8430] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.786680][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.795404][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.804703][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.814423][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.832495][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.840364][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.855664][ T8430] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.876720][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.899208][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.907795][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.916542][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.927019][ T8430] device veth0_vlan entered promiscuous mode [ 75.942385][ T8430] device veth1_vlan entered promiscuous mode [ 75.966185][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.975226][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.984620][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.996379][ T8430] device veth0_macvtap entered promiscuous mode [ 76.007373][ T8430] device veth1_macvtap entered promiscuous mode [ 76.021374][ T4808] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 76.035074][ T8430] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.044013][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.053174][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.066344][ T8430] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.074932][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.084233][ T4083] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.097046][ T8430] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.106288][ T8430] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.115600][ T8430] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.125062][ T8430] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.230728][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.242947][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.269432][ T107] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 executing program [ 76.281592][ T4809] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.289541][ T107] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.299094][ T3156] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 22:20:07 building call list... [ 76.993081][ T927] ------------[ cut here ]------------ [ 77.000444][ T927] hook not found, pf 3 num 0 [ 77.001049][ T927] WARNING: CPU: 1 PID: 927 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.025479][ T927] Modules linked in: [ 77.034049][ T927] CPU: 1 PID: 927 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 77.052891][ T927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.065952][ T927] Workqueue: netns cleanup_net [ 77.072665][ T927] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.081731][ T927] 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 50 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.103711][ T927] RSP: 0018:ffffc9000379fbc0 EFLAGS: 00010286 [ 77.111318][ T927] RAX: 0000000000000000 RBX: ffff888149e7df00 RCX: 0000000000000000 [ 77.121646][ T927] RDX: ffff8880164c3880 RSI: ffffffff815c8ba5 RDI: fffff520006f3f6a [ 77.131014][ T927] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.140817][ T927] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802aea8f20 [ 77.151232][ T927] R13: 0000000000000000 R14: ffff8880163f7500 R15: 0000000000000001 [ 77.160447][ T927] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 77.173923][ T927] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.181809][ T927] CR2: 00007f1208504000 CR3: 000000001fd0f000 CR4: 00000000001506e0 [ 77.191074][ T927] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.200738][ T927] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.210065][ T927] Call Trace: [ 77.213633][ T927] nf_unregister_net_hooks+0x117/0x160 [ 77.220692][ T927] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.226635][ T927] ? arptable_filter_net_exit+0x20/0x20 [ 77.233723][ T927] cleanup_net+0x451/0xb10 [ 77.239136][ T927] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.244572][ T927] process_one_work+0x98d/0x1600 [ 77.256068][ T927] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.263509][ T927] ? rwlock_bug.part.0+0x90/0x90 [ 77.269741][ T927] ? _raw_spin_lock_irq+0x41/0x50 [ 77.274864][ T927] worker_thread+0x64c/0x1120 [ 77.281474][ T927] ? __kthread_parkme+0x13f/0x1e0 [ 77.286555][ T927] ? process_one_work+0x1600/0x1600 [ 77.294901][ T927] kthread+0x3b1/0x4a0 [ 77.300277][ T927] ? __kthread_bind_mask+0xc0/0xc0 [ 77.305464][ T927] ret_from_fork+0x1f/0x30 [ 77.311800][ T927] Kernel panic - not syncing: panic_on_warn set ... [ 77.318463][ T927] CPU: 1 PID: 927 Comm: kworker/u4:5 Not tainted 5.12.0-syzkaller #0 [ 77.326722][ T927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.337052][ T927] Workqueue: netns cleanup_net [ 77.342919][ T927] Call Trace: [ 77.346215][ T927] dump_stack+0x141/0x1d7 [ 77.350571][ T927] panic+0x306/0x73d [ 77.354830][ T927] ? __warn_printk+0xf3/0xf3 [ 77.359451][ T927] ? __warn.cold+0x1a/0x44 [ 77.363886][ T927] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.369628][ T927] __warn.cold+0x35/0x44 [ 77.374078][ T927] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.379828][ T927] report_bug+0x1bd/0x210 [ 77.384206][ T927] handle_bug+0x3c/0x60 [ 77.388464][ T927] exc_invalid_op+0x14/0x40 [ 77.393084][ T927] asm_exc_invalid_op+0x12/0x20 [ 77.397959][ T927] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.404318][ T927] 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 50 5b 8a 01 <0f> 0b e9 e5 00 00 00 e8 69 17 2e fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 77.423949][ T927] RSP: 0018:ffffc9000379fbc0 EFLAGS: 00010286 [ 77.430057][ T927] RAX: 0000000000000000 RBX: ffff888149e7df00 RCX: 0000000000000000 [ 77.438299][ T927] RDX: ffff8880164c3880 RSI: ffffffff815c8ba5 RDI: fffff520006f3f6a [ 77.446284][ T927] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.454265][ T927] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802aea8f20 [ 77.462358][ T927] R13: 0000000000000000 R14: ffff8880163f7500 R15: 0000000000000001 [ 77.470800][ T927] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.476032][ T927] ? vprintk+0x95/0x260 [ 77.480247][ T927] nf_unregister_net_hooks+0x117/0x160 [ 77.485820][ T927] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.491822][ T927] ? arptable_filter_net_exit+0x20/0x20 [ 77.497470][ T927] cleanup_net+0x451/0xb10 [ 77.501907][ T927] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.507334][ T927] process_one_work+0x98d/0x1600 [ 77.512405][ T927] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.517800][ T927] ? rwlock_bug.part.0+0x90/0x90 [ 77.522776][ T927] ? _raw_spin_lock_irq+0x41/0x50 [ 77.527843][ T927] worker_thread+0x64c/0x1120 [ 77.532644][ T927] ? __kthread_parkme+0x13f/0x1e0 [ 77.537689][ T927] ? process_one_work+0x1600/0x1600 [ 77.542905][ T927] kthread+0x3b1/0x4a0 [ 77.546995][ T927] ? __kthread_bind_mask+0xc0/0xc0 [ 77.552133][ T927] ret_from_fork+0x1f/0x30 [ 77.558352][ T927] Kernel Offset: disabled [ 77.563176][ T927] Rebooting in 86400 seconds..