Warning: Permanently added '10.128.0.223' (ECDSA) to the list of known hosts. 2020/11/14 03:55:19 fuzzer started 2020/11/14 03:55:19 connecting to host at 10.128.0.26:36243 2020/11/14 03:55:19 checking machine... 2020/11/14 03:55:19 checking revisions... 2020/11/14 03:55:20 testing simple program... executing program executing program syzkaller login: [ 156.372195][ T8292] IPVS: ftp: loaded support on port[0] = 21 [ 156.730605][ T8292] chnl_net:caif_netlink_parms(): no params data found [ 156.821036][ T8292] bridge0: port 1(bridge_slave_0) entered blocking state [ 156.828528][ T8292] bridge0: port 1(bridge_slave_0) entered disabled state [ 156.838066][ T8292] device bridge_slave_0 entered promiscuous mode [ 156.848139][ T8292] bridge0: port 2(bridge_slave_1) entered blocking state [ 156.855621][ T8292] bridge0: port 2(bridge_slave_1) entered disabled state [ 156.865068][ T8292] device bridge_slave_1 entered promiscuous mode [ 156.898524][ T8292] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 156.911725][ T8292] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 156.948311][ T8292] team0: Port device team_slave_0 added [ 156.957924][ T8292] team0: Port device team_slave_1 added [ 156.988043][ T8292] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 156.995262][ T8292] 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. [ 157.021666][ T8292] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 157.035509][ T8292] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 157.042500][ T8292] 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. [ 157.068693][ T8292] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 157.110972][ T8292] device hsr_slave_0 entered promiscuous mode [ 157.118472][ T8292] device hsr_slave_1 entered promiscuous mode [ 157.295513][ T8292] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 157.309742][ T8292] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 157.327814][ T8292] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 157.345105][ T8292] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 157.435000][ T8292] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.442156][ T8292] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.450026][ T8292] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.463067][ T8292] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.540596][ T8292] 8021q: adding VLAN 0 to HW filter on device bond0 [ 157.562307][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 157.572825][ T3618] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.584215][ T3618] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.595917][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 157.614530][ T8292] 8021q: adding VLAN 0 to HW filter on device team0 [ 157.631549][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 157.641084][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 157.650548][ T2978] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.657900][ T2978] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.696135][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 157.705545][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 157.714801][ T2978] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.721964][ T2978] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.732077][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 157.742402][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 157.753236][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 157.763664][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 157.773058][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 157.783405][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 157.795018][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 157.812144][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 157.822374][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 157.845892][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 157.855112][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 157.871835][ T8292] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 157.902024][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 157.910216][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 157.930950][ T8292] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 157.964244][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 157.973404][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 158.009894][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 158.018618][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 158.036745][ T8292] device veth0_vlan entered promiscuous mode [ 158.045670][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 158.054259][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 158.074843][ T8292] device veth1_vlan entered promiscuous mode [ 158.114210][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 158.122734][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 158.132130][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 158.141564][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 158.160005][ T8292] device veth0_macvtap entered promiscuous mode [ 158.173973][ T8292] device veth1_macvtap entered promiscuous mode [ 158.206408][ T8292] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 158.214398][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 158.222964][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 158.232353][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 158.241900][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready executing program [ 158.263973][ T8292] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 158.271468][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 158.281348][ T2978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 158.297621][ T8292] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.306621][ T8292] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.315586][ T8292] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.324577][ T8292] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.340683][ T2978] Bluetooth: hci0: command 0x0409 tx timeout [ 158.580343][ T471] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.588904][ T471] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 158.597496][ T49] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 158.672169][ T902] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.680327][ T902] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 158.689364][ T3618] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/14 03:55:29 building call list... [ 159.686157][ T902] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.900992][ T902] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.104635][ T902] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.243654][ T902] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 163.274357][ T902] device hsr_slave_0 left promiscuous mode [ 163.302363][ T902] device hsr_slave_1 left promiscuous mode [ 163.326291][ T902] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 163.334276][ T902] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 163.350952][ T902] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 163.358793][ T902] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 163.370602][ T902] device bridge_slave_1 left promiscuous mode [ 163.377844][ T902] bridge0: port 2(bridge_slave_1) entered disabled state [ 163.391266][ T902] device bridge_slave_0 left promiscuous mode [ 163.398320][ T902] bridge0: port 1(bridge_slave_0) entered disabled state [ 163.425370][ T902] device veth1_macvtap left promiscuous mode [ 163.431481][ T902] device veth0_macvtap left promiscuous mode [ 163.437958][ T902] device veth1_vlan left promiscuous mode [ 163.444295][ T902] device veth0_vlan left promiscuous mode executing program [ 167.168317][ T902] team0 (unregistering): Port device team_slave_1 removed [ 167.195349][ T902] team0 (unregistering): Port device team_slave_0 removed [ 167.216886][ T902] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 167.239575][ T902] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 167.345965][ T902] bond0 (unregistering): Released all slaves [ 168.035801][ T902] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 168.043728][ T902] #PF: supervisor read access in kernel mode [ 168.049780][ T902] #PF: error_code(0x0000) - not-present page [ 168.055825][ T902] PGD 126f82067 P4D 126f82067 PUD 126f8f067 PMD 0 [ 168.062547][ T902] Oops: 0000 [#1] SMP [ 168.066627][ T902] CPU: 1 PID: 902 Comm: kworker/u4:16 Not tainted 5.10.0-rc1-syzkaller #0 [ 168.075203][ T902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.085372][ T902] Workqueue: netns cleanup_net [ 168.090300][ T902] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.095794][ T902] Code: 4d 8b 6f 08 45 8b a7 88 0c 00 00 41 8b 87 90 0c 00 00 89 45 d4 e8 b9 d7 78 fd 49 8d 9e 9c 00 00 00 4d 85 ed 0f 85 30 04 00 00 <41> 8b 86 9c 00 00 00 89 45 8c 48 89 df e8 a7 f8 f7 fd 8b 18 8b 0a [ 168.115590][ T902] RSP: 0018:ffff888104597a38 EFLAGS: 00010246 [ 168.121792][ T902] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105c83d80 [ 168.129854][ T902] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888114ed4000 [ 168.137922][ T902] RBP: ffff888104597ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.146013][ T902] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.154078][ T902] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105c84780 [ 168.162156][ T902] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.171179][ T902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.177848][ T902] CR2: 000000000000009c CR3: 00000001203d8000 CR4: 00000000001506e0 [ 168.185918][ T902] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.194004][ T902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.202054][ T902] Call Trace: [ 168.205470][ T902] ? up_write+0x62/0x220 [ 168.209829][ T902] afs_cell_purge+0xfb/0x5e0 [ 168.214559][ T902] ? del_timer_sync+0x131/0x1f0 [ 168.220259][ T902] ? afs_fs_probe_cleanup+0x111/0x140 [ 168.225771][ T902] afs_net_exit+0xc6/0x180 [ 168.230299][ T902] ? afs_net_init+0xe90/0xe90 [ 168.235075][ T902] cleanup_net+0xd73/0x1af0 [ 168.239687][ T902] ? ops_init+0x7d0/0x7d0 [ 168.244127][ T902] process_one_work+0x121c/0x1fc0 [ 168.249291][ T902] worker_thread+0x10cc/0x2740 [ 168.254167][ T902] ? kmsan_get_metadata+0x116/0x180 [ 168.259483][ T902] ? kmsan_get_metadata+0x116/0x180 [ 168.264830][ T902] kthread+0x51c/0x560 [ 168.269011][ T902] ? process_one_work+0x1fc0/0x1fc0 [ 168.274340][ T902] ? kthread_blkcg+0x110/0x110 [ 168.279215][ T902] ret_from_fork+0x1f/0x30 [ 168.283704][ T902] Modules linked in: [ 168.287693][ T902] CR2: 000000000000009c [ 168.291944][ T902] ---[ end trace d59125f802b26595 ]--- [ 168.297511][ T902] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.302996][ T902] Code: 4d 8b 6f 08 45 8b a7 88 0c 00 00 41 8b 87 90 0c 00 00 89 45 d4 e8 b9 d7 78 fd 49 8d 9e 9c 00 00 00 4d 85 ed 0f 85 30 04 00 00 <41> 8b 86 9c 00 00 00 89 45 8c 48 89 df e8 a7 f8 f7 fd 8b 18 8b 0a [ 168.322707][ T902] RSP: 0018:ffff888104597a38 EFLAGS: 00010246 [ 168.328932][ T902] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105c83d80 [ 168.337001][ T902] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888114ed4000 [ 168.345076][ T902] RBP: ffff888104597ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.353131][ T902] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.361195][ T902] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105c84780 [ 168.369276][ T902] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.378298][ T902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.384967][ T902] CR2: 000000000000009c CR3: 00000001203d8000 CR4: 00000000001506e0 [ 168.393028][ T902] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.401092][ T902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.409146][ T902] Kernel panic - not syncing: Fatal exception [ 168.416054][ T902] Kernel Offset: disabled [ 168.420426][ T902] Rebooting in 86400 seconds..