Warning: Permanently added '10.128.0.153' (ECDSA) to the list of known hosts. 2020/11/13 15:51:44 fuzzer started 2020/11/13 15:51:45 connecting to host at 10.128.0.26:33793 2020/11/13 15:51:45 checking machine... 2020/11/13 15:51:45 checking revisions... 2020/11/13 15:51:46 testing simple program... executing program executing program syzkaller login: [ 157.196637][ T8286] IPVS: ftp: loaded support on port[0] = 21 [ 157.512677][ T8286] chnl_net:caif_netlink_parms(): no params data found [ 157.673623][ T8286] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.681079][ T8286] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.690601][ T8286] device bridge_slave_0 entered promiscuous mode [ 157.704121][ T8286] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.711589][ T8286] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.721163][ T8286] device bridge_slave_1 entered promiscuous mode [ 157.772021][ T8286] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 157.788736][ T8286] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 157.838163][ T8286] team0: Port device team_slave_0 added [ 157.851109][ T8286] team0: Port device team_slave_1 added [ 157.882709][ T8286] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 157.889925][ T8286] 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. [ 157.916098][ T8286] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 157.929571][ T8286] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 157.936569][ T8286] 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. [ 157.962772][ T8286] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 158.005052][ T8286] device hsr_slave_0 entered promiscuous mode [ 158.012543][ T8286] device hsr_slave_1 entered promiscuous mode [ 158.193693][ T8286] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 158.205885][ T8286] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 158.227940][ T8286] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 158.245392][ T8286] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 158.336607][ T8286] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.343935][ T8286] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.351807][ T8286] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.359261][ T8286] bridge0: port 1(bridge_slave_0) entered forwarding state [ 158.432307][ T3526] bridge0: port 1(bridge_slave_0) entered disabled state [ 158.441395][ T3526] bridge0: port 2(bridge_slave_1) entered disabled state [ 158.463022][ T8286] 8021q: adding VLAN 0 to HW filter on device bond0 [ 158.485330][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 158.493682][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 158.510615][ T8286] 8021q: adding VLAN 0 to HW filter on device team0 [ 158.526120][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 158.535373][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 158.544847][ T791] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.552250][ T791] bridge0: port 1(bridge_slave_0) entered forwarding state [ 158.570649][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 158.580187][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 158.589974][ T791] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.597211][ T791] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.613144][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 158.630070][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 158.659538][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 158.669713][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 158.679478][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 158.689660][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 158.699765][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 158.709083][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 158.728105][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 158.737370][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 158.747005][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 158.767767][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 158.800808][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 158.808296][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 158.830273][ T8286] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 158.864893][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 158.874691][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 158.908640][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 158.917869][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 158.929233][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 158.938041][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 158.953776][ T8286] device veth0_vlan entered promiscuous mode [ 158.973375][ T8286] device veth1_vlan entered promiscuous mode [ 159.013781][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 159.022454][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 159.031907][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 159.041251][ T791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready executing program [ 159.059734][ T8286] device veth0_macvtap entered promiscuous mode [ 159.073839][ T8286] device veth1_macvtap entered promiscuous mode [ 159.106979][ T8286] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 159.114592][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 159.123927][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 159.133292][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 159.142835][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 159.161943][ T8286] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 159.176163][ T8286] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.185484][ T8286] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.194576][ T8286] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.203543][ T8286] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.219798][ T791] Bluetooth: hci0: command 0x0409 tx timeout [ 159.220115][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 159.235927][ T3526] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 159.520869][ T530] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 159.528908][ T530] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 159.560812][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 159.589316][ T530] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 159.597251][ T530] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 159.612705][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/13 15:51:55 building call list... [ 160.616254][ T25] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.852290][ T25] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 161.052969][ T25] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 161.193293][ T25] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 164.118473][ T25] device hsr_slave_0 left promiscuous mode [ 164.143104][ T25] device hsr_slave_1 left promiscuous mode [ 164.158465][ T25] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 164.166399][ T25] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 164.181761][ T25] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 164.189350][ T25] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 164.202102][ T25] device bridge_slave_1 left promiscuous mode [ 164.208863][ T25] bridge0: port 2(bridge_slave_1) entered disabled state [ 164.223184][ T25] device bridge_slave_0 left promiscuous mode [ 164.230196][ T25] bridge0: port 1(bridge_slave_0) entered disabled state [ 164.255280][ T25] device veth1_macvtap left promiscuous mode [ 164.261675][ T25] device veth0_macvtap left promiscuous mode [ 164.267806][ T25] device veth1_vlan left promiscuous mode [ 164.273937][ T25] device veth0_vlan left promiscuous mode executing program [ 168.040494][ T25] team0 (unregistering): Port device team_slave_1 removed [ 168.063821][ T25] team0 (unregistering): Port device team_slave_0 removed executing program [ 168.083826][ T25] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 168.106683][ T25] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 168.211992][ T25] bond0 (unregistering): Released all slaves [ 169.071278][ T25] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 169.079200][ T25] #PF: supervisor read access in kernel mode [ 169.085246][ T25] #PF: error_code(0x0000) - not-present page [ 169.091284][ T25] PGD 10681b067 P4D 10681b067 PUD 1165b1067 PMD 0 [ 169.098015][ T25] Oops: 0000 [#1] SMP [ 169.102097][ T25] CPU: 0 PID: 25 Comm: kworker/u4:2 Not tainted 5.10.0-rc1-syzkaller #0 [ 169.110501][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.120663][ T25] Workqueue: netns cleanup_net [ 169.125572][ T25] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 169.131064][ T25] 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 [ 169.150778][ T25] RSP: 0018:ffff888102ca3a38 EFLAGS: 00010246 [ 169.156977][ T25] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888102c71ec0 [ 169.165047][ T25] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126d2a800 [ 169.173122][ T25] RBP: ffff888102ca3ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 169.181189][ T25] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 169.189246][ T25] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888102c728c0 [ 169.197321][ T25] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 169.206357][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.213027][ T25] CR2: 000000000000009c CR3: 00000001262ef000 CR4: 00000000001506f0 [ 169.221085][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.229141][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.237186][ T25] Call Trace: [ 169.240627][ T25] ? up_write+0x62/0x220 [ 169.244989][ T25] afs_cell_purge+0xfb/0x5e0 [ 169.249700][ T25] ? del_timer_sync+0x131/0x1f0 [ 169.254672][ T25] ? afs_fs_probe_cleanup+0x111/0x140 [ 169.260154][ T25] afs_net_exit+0xc6/0x180 [ 169.264680][ T25] ? afs_net_init+0xe90/0xe90 [ 169.269459][ T25] cleanup_net+0xd73/0x1af0 [ 169.274077][ T25] ? ops_init+0x7d0/0x7d0 [ 169.278519][ T25] process_one_work+0x121c/0x1fc0 [ 169.283681][ T25] worker_thread+0x10cc/0x2740 [ 169.288548][ T25] ? kmsan_get_metadata+0x116/0x180 [ 169.293899][ T25] kthread+0x51c/0x560 [ 169.298078][ T25] ? process_one_work+0x1fc0/0x1fc0 [ 169.303405][ T25] ? kthread_blkcg+0x110/0x110 [ 169.308274][ T25] ret_from_fork+0x1f/0x30 [ 169.312756][ T25] Modules linked in: [ 169.316745][ T25] CR2: 000000000000009c [ 169.321000][ T25] ---[ end trace 490446d17b5d20c5 ]--- [ 169.326565][ T25] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 169.332050][ T25] 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 [ 169.351760][ T25] RSP: 0018:ffff888102ca3a38 EFLAGS: 00010246 [ 169.358033][ T25] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888102c71ec0 [ 169.366089][ T25] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126d2a800 [ 169.374157][ T25] RBP: ffff888102ca3ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 169.382223][ T25] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 169.390280][ T25] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888102c728c0 [ 169.398351][ T25] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 169.407364][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.414029][ T25] CR2: 000000000000009c CR3: 00000001262ef000 CR4: 00000000001506f0 [ 169.422086][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.430142][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.438281][ T25] Kernel panic - not syncing: Fatal exception [ 169.445112][ T25] Kernel Offset: disabled [ 169.449640][ T25] Rebooting in 86400 seconds..