Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. 2021/05/07 09:37:35 fuzzer started 2021/05/07 09:37:35 connecting to host at 10.128.0.169:35799 2021/05/07 09:37:35 checking machine... 2021/05/07 09:37:35 checking revisions... 2021/05/07 09:37:35 testing simple program... syzkaller login: [ 75.387610][ T8439] chnl_net:caif_netlink_parms(): no params data found [ 75.440868][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.450823][ T8439] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.460579][ T8439] device bridge_slave_0 entered promiscuous mode [ 75.470438][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.479888][ T8439] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.489703][ T8439] device bridge_slave_1 entered promiscuous mode [ 75.513789][ T8439] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.528095][ T8439] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.555974][ T8439] team0: Port device team_slave_0 added [ 75.566645][ T8439] team0: Port device team_slave_1 added [ 75.588021][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.597723][ T8439] 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. [ 75.627759][ T8439] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.642278][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.649776][ T8439] 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. [ 75.677957][ T8439] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.706182][ T8439] device hsr_slave_0 entered promiscuous mode [ 75.713130][ T8439] device hsr_slave_1 entered promiscuous mode [ 75.817169][ T8439] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.829825][ T8439] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.841365][ T8439] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.852671][ T8439] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.880002][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.888037][ T8439] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.896645][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.903957][ T8439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.952754][ T8439] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.969370][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.981973][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.991927][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.000782][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.014594][ T8439] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.036791][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.046192][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.053543][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.062498][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.071460][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.078704][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.091414][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.101763][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.120600][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.130554][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.147016][ T8439] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.160204][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.171908][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.198608][ T8439] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.207372][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 76.216147][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 76.237290][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 76.260116][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 76.269517][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 76.280046][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 76.293017][ T8439] device veth0_vlan entered promiscuous mode [ 76.306949][ T8439] device veth1_vlan entered promiscuous mode [ 76.330709][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.339848][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.348900][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.362405][ T8439] device veth0_macvtap entered promiscuous mode [ 76.374636][ T8439] device veth1_macvtap entered promiscuous mode [ 76.393708][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.403409][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 76.413512][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.427341][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.435479][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 76.444436][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.457826][ T8439] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.475096][ T8439] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.483933][ T8439] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.493097][ T8439] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 76.597137][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.614549][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.639933][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 76.660789][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 76.669720][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 76.679106][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 09:37:38 building call list... [ 77.358509][ T25] ------------[ cut here ]------------ [ 77.366516][ T25] hook not found, pf 3 num 0 [ 77.367179][ T25] WARNING: CPU: 0 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 77.384361][ T25] Modules linked in: [ 77.395833][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 77.404223][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.418996][ T25] Workqueue: netns cleanup_net [ 77.423936][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.432326][ 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 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 [ 77.454667][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 77.466544][ T25] RAX: 0000000000000000 RBX: ffff888024c41a00 RCX: 0000000000000000 [ 77.474699][ T25] RDX: ffff888011e2d4c0 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 77.485141][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.493440][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802b2f8f20 [ 77.503105][ T25] R13: 0000000000000000 R14: ffff88801798e200 R15: 0000000000000001 [ 77.518552][ T25] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 77.528457][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.535231][ T25] CR2: 00007f278062b000 CR3: 00000000172a6000 CR4: 00000000001506f0 [ 77.543326][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.552819][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.561305][ T25] Call Trace: [ 77.564702][ T25] nf_unregister_net_hooks+0x117/0x160 [ 77.570343][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.576518][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 77.582198][ T25] cleanup_net+0x451/0xb10 [ 77.595222][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.600961][ T25] process_one_work+0x98d/0x1600 [ 77.607834][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.613864][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 77.620033][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 77.627410][ T25] worker_thread+0x64c/0x1120 [ 77.632232][ T25] ? __kthread_parkme+0x13f/0x1e0 [ 77.639125][ T25] ? process_one_work+0x1600/0x1600 [ 77.644485][ T25] kthread+0x3b1/0x4a0 [ 77.651602][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 77.657799][ T25] ret_from_fork+0x1f/0x30 [ 77.662274][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 77.668959][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 77.677039][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.687551][ T25] Workqueue: netns cleanup_net [ 77.692344][ T25] Call Trace: [ 77.695637][ T25] dump_stack+0x141/0x1d7 [ 77.700178][ T25] panic+0x306/0x73d [ 77.704324][ T25] ? __warn_printk+0xf3/0xf3 [ 77.709374][ T25] ? __warn.cold+0x1a/0x44 [ 77.713982][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.720077][ T25] __warn.cold+0x35/0x44 [ 77.724542][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 77.730555][ T25] report_bug+0x1bd/0x210 [ 77.735176][ T25] handle_bug+0x3c/0x60 [ 77.739351][ T25] exc_invalid_op+0x14/0x40 [ 77.743872][ T25] asm_exc_invalid_op+0x12/0x20 [ 77.748747][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 77.755754][ 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 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 [ 77.776001][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 77.782083][ T25] RAX: 0000000000000000 RBX: ffff888024c41a00 RCX: 0000000000000000 [ 77.790150][ T25] RDX: ffff888011e2d4c0 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 77.798570][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 77.806566][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff88802b2f8f20 [ 77.814550][ T25] R13: 0000000000000000 R14: ffff88801798e200 R15: 0000000000000001 [ 77.822736][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 77.827964][ T25] ? vprintk+0x95/0x260 [ 77.832417][ T25] nf_unregister_net_hooks+0x117/0x160 [ 77.838173][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 77.844691][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 77.850263][ T25] cleanup_net+0x451/0xb10 [ 77.854720][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 77.860245][ T25] process_one_work+0x98d/0x1600 [ 77.865384][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 77.870878][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 77.875932][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 77.880998][ T25] worker_thread+0x64c/0x1120 [ 77.885709][ T25] ? __kthread_parkme+0x13f/0x1e0 [ 77.890845][ T25] ? process_one_work+0x1600/0x1600 [ 77.896247][ T25] kthread+0x3b1/0x4a0 [ 77.900334][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 77.905637][ T25] ret_from_fork+0x1f/0x30 [ 77.911763][ T25] Kernel Offset: disabled [ 77.916209][ T25] Rebooting in 86400 seconds..