Warning: Permanently added '10.128.0.108' (ECDSA) to the list of known hosts. 2020/11/12 22:51:46 fuzzer started 2020/11/12 22:51:46 connecting to host at 10.128.0.26:33483 2020/11/12 22:51:46 checking machine... 2020/11/12 22:51:46 checking revisions... 2020/11/12 22:51:47 testing simple program... executing program executing program syzkaller login: [ 154.070364][ T8279] IPVS: ftp: loaded support on port[0] = 21 [ 154.379591][ T8279] chnl_net:caif_netlink_parms(): no params data found [ 154.500824][ T8279] bridge0: port 1(bridge_slave_0) entered blocking state [ 154.508369][ T8279] bridge0: port 1(bridge_slave_0) entered disabled state [ 154.518417][ T8279] device bridge_slave_0 entered promiscuous mode [ 154.532104][ T8279] bridge0: port 2(bridge_slave_1) entered blocking state [ 154.539585][ T8279] bridge0: port 2(bridge_slave_1) entered disabled state [ 154.549788][ T8279] device bridge_slave_1 entered promiscuous mode [ 154.595544][ T8279] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 154.608467][ T8279] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 154.644432][ T8279] team0: Port device team_slave_0 added [ 154.654576][ T8279] team0: Port device team_slave_1 added [ 154.683698][ T8279] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 154.690698][ T8279] 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. [ 154.716974][ T8279] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 154.730556][ T8279] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 154.737815][ T8279] 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. [ 154.764166][ T8279] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 154.807539][ T8279] device hsr_slave_0 entered promiscuous mode [ 154.815196][ T8279] device hsr_slave_1 entered promiscuous mode [ 155.002093][ T8279] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 155.015344][ T8279] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 155.032148][ T8279] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 155.049617][ T8279] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 155.140819][ T8279] bridge0: port 2(bridge_slave_1) entered blocking state [ 155.148191][ T8279] bridge0: port 2(bridge_slave_1) entered forwarding state [ 155.156040][ T8279] bridge0: port 1(bridge_slave_0) entered blocking state [ 155.163497][ T8279] bridge0: port 1(bridge_slave_0) entered forwarding state [ 155.242129][ T8279] 8021q: adding VLAN 0 to HW filter on device bond0 [ 155.264365][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 155.276242][ T4746] bridge0: port 1(bridge_slave_0) entered disabled state [ 155.285198][ T4746] bridge0: port 2(bridge_slave_1) entered disabled state [ 155.298055][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 155.315829][ T8279] 8021q: adding VLAN 0 to HW filter on device team0 [ 155.333236][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 155.342452][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 155.351964][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 155.359470][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 155.405269][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 155.414590][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 155.424538][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 155.431833][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 155.440841][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 155.450826][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 155.461799][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 155.471486][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 155.481780][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 155.491537][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 155.501944][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 155.511244][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 155.527074][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 155.540312][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 155.550145][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 155.570092][ T8279] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 155.602428][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 155.610339][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 155.631899][ T8279] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 155.667561][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 155.677016][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 155.711891][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 155.720790][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 155.731658][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 155.741299][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 155.758875][ T8279] device veth0_vlan entered promiscuous mode [ 155.778585][ T8279] device veth1_vlan entered promiscuous mode [ 155.819085][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 155.827823][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 155.837422][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 155.847073][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 155.867213][ T8279] device veth0_macvtap entered promiscuous mode [ 155.880838][ T8279] device veth1_macvtap entered promiscuous mode executing program [ 155.913521][ T8279] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 155.921323][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 155.930824][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 155.939759][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 155.949932][ T4746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 155.969825][ T8279] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 155.977875][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 155.987905][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 156.003760][ T8279] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.012517][ T8279] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.022341][ T8279] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.031353][ T8279] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 156.033424][ T3117] Bluetooth: hci0: command 0x0409 tx timeout [ 156.326934][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 156.335476][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 156.356426][ T3117] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 156.407990][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 156.417164][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 156.425310][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/12 22:51:56 building call list... [ 157.427077][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.541612][ T8] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.688990][ T8] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 157.917138][ T8] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 160.873405][ T8] device hsr_slave_0 left promiscuous mode [ 160.895907][ T8] device hsr_slave_1 left promiscuous mode [ 160.920579][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 160.928481][ T8] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 160.946738][ T8] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 160.954646][ T8] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 160.969965][ T8] device bridge_slave_1 left promiscuous mode [ 160.977206][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 160.995519][ T8] device bridge_slave_0 left promiscuous mode [ 161.002372][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.030905][ T8] device veth1_macvtap left promiscuous mode [ 161.037488][ T8] device veth0_macvtap left promiscuous mode [ 161.044046][ T8] device veth1_vlan left promiscuous mode [ 161.049999][ T8] device veth0_vlan left promiscuous mode executing program [ 164.758172][ T8] team0 (unregistering): Port device team_slave_1 removed [ 164.777714][ T8] team0 (unregistering): Port device team_slave_0 removed [ 164.798521][ T8] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 164.830314][ T8] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface executing program [ 164.933707][ T8] bond0 (unregistering): Released all slaves [ 165.744753][ T8] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 165.752761][ T8] #PF: supervisor read access in kernel mode [ 165.758914][ T8] #PF: error_code(0x0000) - not-present page [ 165.765048][ T8] PGD 116761067 P4D 116761067 PUD 1254b6067 PMD 0 [ 165.771876][ T8] Oops: 0000 [#1] SMP [ 165.776052][ T8] CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 5.10.0-rc1-syzkaller #0 [ 165.784472][ T8] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.794745][ T8] Workqueue: netns cleanup_net [ 165.799754][ T8] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 165.805347][ T8] 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 [ 165.825156][ T8] RSP: 0018:ffff8881023d7a38 EFLAGS: 00010246 [ 165.831454][ T8] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881023c5c40 [ 165.839628][ T8] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888125756000 [ 165.847799][ T8] RBP: ffff8881023d7ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 165.855969][ T8] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 165.864141][ T8] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881023c6640 [ 165.872319][ T8] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 165.881448][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 165.888222][ T8] CR2: 000000000000009c CR3: 00000001167cb000 CR4: 00000000001506e0 [ 165.896394][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 165.904588][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 165.912845][ T8] Call Trace: [ 165.916359][ T8] ? up_write+0x62/0x220 [ 165.920892][ T8] afs_cell_purge+0xfb/0x5e0 [ 165.925707][ T8] ? del_timer_sync+0x131/0x1f0 [ 165.930789][ T8] ? afs_fs_probe_cleanup+0x111/0x140 [ 165.936380][ T8] afs_net_exit+0xc6/0x180 [ 165.941008][ T8] ? afs_net_init+0xe90/0xe90 [ 165.945885][ T8] cleanup_net+0xd73/0x1af0 [ 165.950595][ T8] ? ops_init+0x7d0/0x7d0 [ 165.955148][ T8] process_one_work+0x121c/0x1fc0 [ 165.960409][ T8] worker_thread+0x10cc/0x2740 [ 165.965388][ T8] ? kmsan_get_metadata+0x116/0x180 [ 165.970827][ T8] kthread+0x51c/0x560 [ 165.975111][ T8] ? process_one_work+0x1fc0/0x1fc0 [ 165.980544][ T8] ? kthread_blkcg+0x110/0x110 [ 165.985525][ T8] ret_from_fork+0x1f/0x30 [ 165.990117][ T8] Modules linked in: [ 165.994210][ T8] CR2: 000000000000009c [ 165.998564][ T8] ---[ end trace 046964d25b732feb ]--- [ 166.004265][ T8] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 166.009858][ T8] 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 [ 166.029669][ T8] RSP: 0018:ffff8881023d7a38 EFLAGS: 00010246 [ 166.035956][ T8] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881023c5c40 [ 166.044117][ T8] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888125756000 [ 166.052304][ T8] RBP: ffff8881023d7ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 166.060473][ T8] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 166.068639][ T8] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881023c6640 [ 166.076821][ T8] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 166.085945][ T8] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 166.092817][ T8] CR2: 000000000000009c CR3: 00000001167cb000 CR4: 00000000001506e0 [ 166.100972][ T8] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 166.109137][ T8] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 166.117299][ T8] Kernel panic - not syncing: Fatal exception [ 166.124223][ T8] Kernel Offset: disabled [ 166.128632][ T8] Rebooting in 86400 seconds..