Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.12' (ECDSA) to the list of known hosts. 2021/04/29 02:52:46 fuzzer started 2021/04/29 02:52:46 connecting to host at 10.128.0.169:33883 2021/04/29 02:52:46 checking machine... 2021/04/29 02:52:46 checking revisions... 2021/04/29 02:52:46 testing simple program... syzkaller login: [ 77.815926][ T8434] chnl_net:caif_netlink_parms(): no params data found [ 77.875281][ T8434] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.884916][ T8434] bridge0: port 1(bridge_slave_0) entered disabled state [ 77.895112][ T8434] device bridge_slave_0 entered promiscuous mode [ 77.905965][ T8434] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.914487][ T8434] bridge0: port 2(bridge_slave_1) entered disabled state [ 77.923158][ T8434] device bridge_slave_1 entered promiscuous mode [ 77.945366][ T8434] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 77.958291][ T8434] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 77.983862][ T8434] team0: Port device team_slave_0 added [ 77.992636][ T8434] team0: Port device team_slave_1 added [ 78.012074][ T8434] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.019200][ T8434] 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. [ 78.047168][ T8434] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.061563][ T8434] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.072362][ T8434] 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. [ 78.103071][ T8434] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.130994][ T8434] device hsr_slave_0 entered promiscuous mode [ 78.140435][ T8434] device hsr_slave_1 entered promiscuous mode [ 78.247150][ T8434] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 78.258568][ T8434] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 78.271801][ T8434] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 78.282585][ T8434] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 78.310807][ T8434] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.318923][ T8434] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.327523][ T8434] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.335772][ T8434] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.386860][ T8434] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.404237][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.417474][ T2937] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.428810][ T2937] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.438377][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.453727][ T8434] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.465990][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.477048][ T3875] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.485499][ T3875] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.498464][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.508533][ T2937] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.517310][ T2937] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.540345][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.550598][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.565775][ T3623] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.583301][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.592872][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.606863][ T8434] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.626928][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 78.634704][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 78.649120][ T8434] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 78.673149][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 78.694645][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 78.704906][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 78.713844][ T3875] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 78.730611][ T8434] device veth0_vlan entered promiscuous mode [ 78.745957][ T8434] device veth1_vlan entered promiscuous mode [ 78.772647][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 78.783428][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 78.794729][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 78.806734][ T8434] device veth0_macvtap entered promiscuous mode [ 78.817965][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 78.828823][ T8434] device veth1_macvtap entered promiscuous mode [ 78.847921][ T8434] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 78.858115][ T3623] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 78.869069][ T3623] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 78.883112][ T8434] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 78.894424][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 78.908375][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 78.925651][ T8434] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.937023][ T8434] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.950362][ T8434] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 78.962262][ T8434] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 79.084409][ T155] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.108752][ T155] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.129140][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 79.160883][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 79.170010][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 79.183482][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2021/04/29 02:52:49 building call list... [ 79.886169][ T100] ------------[ cut here ]------------ [ 79.895943][ T100] hook not found, pf 3 num 0 [ 79.896639][ T100] WARNING: CPU: 1 PID: 100 at net/netfilter/core.c:480 __nf_unregister_net_hook+0x1eb/0x610 [ 79.917658][ T100] Modules linked in: [ 79.922865][ T100] CPU: 1 PID: 100 Comm: kworker/u4:2 Not tainted 5.12.0-rc7-syzkaller #0 [ 79.936879][ T100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.953584][ T100] Workqueue: netns cleanup_net [ 79.959125][ T100] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 79.968164][ T100] 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 00 6c 6c 8a e8 8e 38 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 36 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 80.002523][ T100] RSP: 0018:ffffc900011bfbc0 EFLAGS: 00010286 [ 80.009755][ T100] RAX: 0000000000000000 RBX: ffff888021534d00 RCX: 0000000000000000 [ 80.025721][ T100] RDX: ffff888011b3d4c0 RSI: ffffffff815c5205 RDI: fffff52000237f6a [ 80.036189][ T100] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.047501][ T100] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888028148f20 [ 80.062718][ T100] R13: 0000000000000000 R14: ffff8880117cf100 R15: 0000000000000001 [ 80.072694][ T100] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 80.084879][ T100] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.093008][ T100] CR2: 00007f32043ba028 CR3: 0000000012f78000 CR4: 00000000001506e0 [ 80.106193][ T100] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.118684][ T100] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.133115][ T100] Call Trace: [ 80.136655][ T100] nf_unregister_net_hooks+0x117/0x160 [ 80.145446][ T100] arpt_unregister_table_pre_exit+0x67/0x80 [ 80.153639][ T100] ? arptable_filter_net_exit+0x20/0x20 [ 80.159499][ T100] cleanup_net+0x451/0xb10 [ 80.167586][ T100] ? ops_free_list.part.0+0x3d0/0x3d0 [ 80.175560][ T100] process_one_work+0x98d/0x1600 [ 80.183925][ T100] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.192513][ T100] ? rwlock_bug.part.0+0x90/0x90 [ 80.198040][ T100] ? _raw_spin_lock_irq+0x41/0x50 [ 80.206815][ T100] worker_thread+0x64c/0x1120 [ 80.212911][ T100] ? process_one_work+0x1600/0x1600 [ 80.218420][ T100] kthread+0x3b1/0x4a0 [ 80.227070][ T100] ? __kthread_bind_mask+0xc0/0xc0 [ 80.234056][ T100] ret_from_fork+0x1f/0x30 [ 80.238707][ T100] Kernel panic - not syncing: panic_on_warn set ... [ 80.247936][ T100] CPU: 1 PID: 100 Comm: kworker/u4:2 Not tainted 5.12.0-rc7-syzkaller #0 [ 80.256989][ T100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.267628][ T100] Workqueue: netns cleanup_net [ 80.272936][ T100] Call Trace: [ 80.276851][ T100] dump_stack+0x141/0x1d7 [ 80.281412][ T100] panic+0x306/0x73d [ 80.285607][ T100] ? __warn_printk+0xf3/0xf3 [ 80.290310][ T100] ? __warn.cold+0x1a/0x44 [ 80.296091][ T100] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.301860][ T100] __warn.cold+0x35/0x44 [ 80.306408][ T100] ? __nf_unregister_net_hook+0x1eb/0x610 [ 80.312702][ T100] report_bug+0x1bd/0x210 [ 80.317173][ T100] handle_bug+0x3c/0x60 [ 80.321643][ T100] exc_invalid_op+0x14/0x40 [ 80.326261][ T100] asm_exc_invalid_op+0x12/0x20 [ 80.331435][ T100] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x610 [ 80.338262][ T100] 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 00 6c 6c 8a e8 8e 38 8a 01 <0f> 0b e9 e5 00 00 00 e8 59 36 35 fa 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 80.358729][ T100] RSP: 0018:ffffc900011bfbc0 EFLAGS: 00010286 [ 80.365177][ T100] RAX: 0000000000000000 RBX: ffff888021534d00 RCX: 0000000000000000 [ 80.374034][ T100] RDX: ffff888011b3d4c0 RSI: ffffffff815c5205 RDI: fffff52000237f6a [ 80.382680][ T100] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 80.391615][ T100] R10: ffffffff815bdf9e R11: 0000000000000000 R12: ffff888028148f20 [ 80.400224][ T100] R13: 0000000000000000 R14: ffff8880117cf100 R15: 0000000000000001 [ 80.408941][ T100] ? wake_up_klogd.part.0+0x8e/0xd0 [ 80.414661][ T100] ? vprintk_func+0x95/0x1e0 [ 80.419448][ T100] nf_unregister_net_hooks+0x117/0x160 [ 80.425213][ T100] arpt_unregister_table_pre_exit+0x67/0x80 [ 80.431313][ T100] ? arptable_filter_net_exit+0x20/0x20 [ 80.437291][ T100] cleanup_net+0x451/0xb10 [ 80.441905][ T100] ? ops_free_list.part.0+0x3d0/0x3d0 [ 80.447376][ T100] process_one_work+0x98d/0x1600 [ 80.452919][ T100] ? pwq_dec_nr_in_flight+0x320/0x320 [ 80.458582][ T100] ? rwlock_bug.part.0+0x90/0x90 [ 80.463719][ T100] ? _raw_spin_lock_irq+0x41/0x50 [ 80.468950][ T100] worker_thread+0x64c/0x1120 [ 80.474015][ T100] ? process_one_work+0x1600/0x1600 [ 80.479764][ T100] kthread+0x3b1/0x4a0 [ 80.484122][ T100] ? __kthread_bind_mask+0xc0/0xc0 [ 80.490050][ T100] ret_from_fork+0x1f/0x30 [ 80.497961][ T100] Kernel Offset: disabled [ 80.503099][ T100] Rebooting in 86400 seconds..