Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.15' (ECDSA) to the list of known hosts. 2021/05/07 22:06:23 fuzzer started 2021/05/07 22:06:23 connecting to host at 10.128.0.169:36529 2021/05/07 22:06:23 checking machine... 2021/05/07 22:06:23 checking revisions... 2021/05/07 22:06:23 testing simple program... syzkaller login: [ 72.376352][ T8415] chnl_net:caif_netlink_parms(): no params data found [ 72.426456][ T8415] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.434525][ T8415] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.443077][ T8415] device bridge_slave_0 entered promiscuous mode [ 72.453953][ T8415] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.461379][ T8415] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.469776][ T8415] device bridge_slave_1 entered promiscuous mode [ 72.490943][ T8415] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.502226][ T8415] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.527665][ T8415] team0: Port device team_slave_0 added [ 72.536204][ T8415] team0: Port device team_slave_1 added [ 72.556208][ T8415] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.563334][ T8415] 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. [ 72.591822][ T8415] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.605764][ T8415] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.613435][ T8415] 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. [ 72.640931][ T8415] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.667338][ T8415] device hsr_slave_0 entered promiscuous mode [ 72.675240][ T8415] device hsr_slave_1 entered promiscuous mode [ 72.799637][ T8415] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.812232][ T8415] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.822871][ T8415] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.833475][ T8415] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.861078][ T8415] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.868868][ T8415] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.876770][ T8415] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.884173][ T8415] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.930690][ T8415] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.944556][ T4159] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.956688][ T4159] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.965704][ T4159] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.975938][ T4159] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.990072][ T8415] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.003740][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.012841][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.019998][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.042064][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.051248][ T3146] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.058462][ T3146] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.066895][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.087864][ T8415] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.102214][ T8415] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.116530][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.125162][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.134011][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.143733][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.153574][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.173136][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.181729][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.194779][ T8415] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.216781][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.238907][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.247505][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.257445][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.267067][ T8415] device veth0_vlan entered promiscuous mode [ 73.283461][ T8415] device veth1_vlan entered promiscuous mode [ 73.306297][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.315248][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.325515][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.341084][ T8415] device veth0_macvtap entered promiscuous mode [ 73.349053][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.360338][ T8415] device veth1_macvtap entered promiscuous mode [ 73.379955][ T8415] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.387506][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.399929][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.412049][ T8415] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.421562][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.430875][ T3146] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.443793][ T8415] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.454148][ T8415] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.463183][ T8415] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.478508][ T8415] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.575272][ T1074] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.594757][ T1074] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.612152][ T4159] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program [ 73.625847][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 73.635709][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 73.646961][ T4159] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/05/07 22:06:26 building call list... [ 74.285533][ T25] ------------[ cut here ]------------ [ 74.292025][ T25] hook not found, pf 3 num 0 [ 74.292785][ T25] WARNING: CPU: 1 PID: 25 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 74.309813][ T25] Modules linked in: [ 74.313814][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 74.323524][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.337885][ T25] Workqueue: netns cleanup_net [ 74.343957][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.354688][ 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 [ 74.377979][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 74.385519][ T25] RAX: 0000000000000000 RBX: ffff8880243cb000 RCX: 0000000000000000 [ 74.395103][ T25] RDX: ffff888015b53880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 74.403941][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.413426][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880179b0f20 [ 74.422000][ T25] R13: 0000000000000000 R14: ffff88801f7eab00 R15: 0000000000000001 [ 74.432548][ T25] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 74.442098][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.449146][ T25] CR2: 000000c000a00000 CR3: 000000001b8a3000 CR4: 00000000001506f0 [ 74.457412][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.465627][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.475027][ T25] Call Trace: [ 74.478842][ T25] nf_unregister_net_hooks+0x117/0x160 [ 74.484445][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.490850][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 74.496621][ T25] cleanup_net+0x451/0xb10 [ 74.501542][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.507142][ T25] process_one_work+0x98d/0x1600 [ 74.523853][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.529943][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 74.534934][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 74.540358][ T25] worker_thread+0x64c/0x1120 [ 74.545087][ T25] ? __kthread_parkme+0x13f/0x1e0 [ 74.551399][ T25] ? process_one_work+0x1600/0x1600 [ 74.556940][ T25] kthread+0x3b1/0x4a0 [ 74.561465][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 74.566927][ T25] ret_from_fork+0x1f/0x30 [ 74.572240][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 74.579400][ T25] CPU: 0 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-syzkaller #0 [ 74.588675][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.599378][ T25] Workqueue: netns cleanup_net [ 74.604302][ T25] Call Trace: [ 74.607686][ T25] dump_stack+0x141/0x1d7 [ 74.612056][ T25] panic+0x306/0x73d [ 74.616050][ T25] ? __warn_printk+0xf3/0xf3 [ 74.620780][ T25] ? __warn.cold+0x1a/0x44 [ 74.625409][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.631148][ T25] __warn.cold+0x35/0x44 [ 74.635509][ T25] ? __nf_unregister_net_hook+0x1eb/0x610 [ 74.641797][ T25] report_bug+0x1bd/0x210 [ 74.646415][ T25] handle_bug+0x3c/0x60 [ 74.650848][ T25] exc_invalid_op+0x14/0x40 [ 74.655722][ T25] asm_exc_invalid_op+0x12/0x20 [ 74.660603][ T25] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 74.667235][ 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 [ 74.687062][ T25] RSP: 0018:ffffc90000dffbc0 EFLAGS: 00010286 [ 74.694384][ T25] RAX: 0000000000000000 RBX: ffff8880243cb000 RCX: 0000000000000000 [ 74.702660][ T25] RDX: ffff888015b53880 RSI: ffffffff815c8ba5 RDI: fffff520001bff6a [ 74.710734][ T25] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 74.719528][ T25] R10: ffffffff815c2a0e R11: 0000000000000000 R12: ffff8880179b0f20 [ 74.728281][ T25] R13: 0000000000000000 R14: ffff88801f7eab00 R15: 0000000000000001 [ 74.739511][ T25] ? wake_up_klogd.part.0+0x8e/0xd0 [ 74.744863][ T25] ? vprintk+0x95/0x260 [ 74.749319][ T25] nf_unregister_net_hooks+0x117/0x160 [ 74.754915][ T25] arpt_unregister_table_pre_exit+0x67/0x80 [ 74.761299][ T25] ? arptable_filter_net_exit+0x20/0x20 [ 74.766905][ T25] cleanup_net+0x451/0xb10 [ 74.771363][ T25] ? ops_free_list.part.0+0x3d0/0x3d0 [ 74.776866][ T25] process_one_work+0x98d/0x1600 [ 74.781850][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.787258][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 74.792436][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 74.797891][ T25] worker_thread+0x64c/0x1120 [ 74.803104][ T25] ? __kthread_parkme+0x13f/0x1e0 [ 74.808511][ T25] ? process_one_work+0x1600/0x1600 [ 74.814819][ T25] kthread+0x3b1/0x4a0 [ 74.819018][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 74.824330][ T25] ret_from_fork+0x1f/0x30 [ 74.829980][ T25] Kernel Offset: disabled [ 74.834588][ T25] Rebooting in 86400 seconds..