Warning: Permanently added '10.128.0.149' (ECDSA) to the list of known hosts. 2020/11/14 04:08:44 fuzzer started 2020/11/14 04:08:45 connecting to host at 10.128.0.26:42511 2020/11/14 04:08:45 checking machine... 2020/11/14 04:08:45 checking revisions... 2020/11/14 04:08:45 testing simple program... executing program executing program syzkaller login: [ 155.394617][ T8270] IPVS: ftp: loaded support on port[0] = 21 [ 155.802310][ T8270] chnl_net:caif_netlink_parms(): no params data found [ 155.890310][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 155.897815][ T8270] bridge0: port 1(bridge_slave_0) entered disabled state [ 155.907248][ T8270] device bridge_slave_0 entered promiscuous mode [ 155.917744][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 155.925153][ T8270] bridge0: port 2(bridge_slave_1) entered disabled state [ 155.934798][ T8270] device bridge_slave_1 entered promiscuous mode [ 155.968919][ T8270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 155.982745][ T8270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 156.019458][ T8270] team0: Port device team_slave_0 added [ 156.029281][ T8270] team0: Port device team_slave_1 added [ 156.062074][ T8270] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 156.069278][ T8270] 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. [ 156.096095][ T8270] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 156.109435][ T8270] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 156.116703][ T8270] 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. [ 156.142958][ T8270] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 156.186641][ T8270] device hsr_slave_0 entered promiscuous mode [ 156.194731][ T8270] device hsr_slave_1 entered promiscuous mode [ 156.375437][ T8270] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 156.388461][ T8270] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 156.416584][ T8270] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 156.434916][ T8270] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 156.524020][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 156.531338][ T8270] bridge0: port 2(bridge_slave_1) entered forwarding state [ 156.539233][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 156.546748][ T8270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 156.627476][ T8270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 156.649725][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 156.660323][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 156.672690][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 156.685012][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 156.704267][ T8270] 8021q: adding VLAN 0 to HW filter on device team0 [ 156.722791][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 156.731711][ T2974] bridge0: port 1(bridge_slave_0) entered blocking state [ 156.739254][ T2974] bridge0: port 1(bridge_slave_0) entered forwarding state [ 156.764074][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 156.774123][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 156.784563][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 156.791882][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 156.801181][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 156.842491][ T8270] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 156.853299][ T8270] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 156.869970][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 156.881386][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 156.891958][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 156.901555][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 156.911784][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 156.921547][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 156.931057][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 156.940631][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 156.950170][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 156.971223][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 156.980904][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 157.006714][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 157.014917][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 157.038579][ T8270] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program [ 157.074159][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 157.084552][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 157.122599][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 157.131812][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 157.149868][ T8270] device veth0_vlan entered promiscuous mode [ 157.159114][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 157.168489][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 157.189904][ T8270] device veth1_vlan entered promiscuous mode [ 157.232055][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 157.241096][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 157.250580][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 157.260248][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 157.277276][ T8270] device veth0_macvtap entered promiscuous mode [ 157.291531][ T8270] device veth1_macvtap entered promiscuous mode [ 157.325300][ T8270] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 157.333356][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 157.342146][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 157.351539][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 157.361176][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 157.376432][ T2974] Bluetooth: hci0: command 0x0409 tx timeout [ 157.384758][ T8270] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 157.394165][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 157.404113][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 157.424744][ T8270] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.433868][ T8270] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.442714][ T8270] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.451842][ T8270] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.709814][ T1063] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 157.718022][ T1063] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 157.727467][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 157.812310][ T1063] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 157.820327][ T1063] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 157.829753][ T2974] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/14 04:08:55 building call list... [ 158.971941][ T1063] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.225878][ T1063] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.419302][ T1063] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.616603][ T1063] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 162.289120][ T1063] device hsr_slave_0 left promiscuous mode [ 162.311408][ T1063] device hsr_slave_1 left promiscuous mode [ 162.328511][ T1063] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 162.336121][ T1063] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 162.365176][ T1063] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 162.372674][ T1063] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 162.389773][ T1063] device bridge_slave_1 left promiscuous mode [ 162.396705][ T1063] bridge0: port 2(bridge_slave_1) entered disabled state [ 162.414903][ T1063] device bridge_slave_0 left promiscuous mode [ 162.421790][ T1063] bridge0: port 1(bridge_slave_0) entered disabled state [ 162.450241][ T1063] device veth1_macvtap left promiscuous mode [ 162.456724][ T1063] device veth0_macvtap left promiscuous mode [ 162.463046][ T1063] device veth1_vlan left promiscuous mode [ 162.468914][ T1063] device veth0_vlan left promiscuous mode executing program executing program [ 166.324332][ T1063] team0 (unregistering): Port device team_slave_1 removed [ 166.343473][ T1063] team0 (unregistering): Port device team_slave_0 removed [ 166.362152][ T1063] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 166.391672][ T1063] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 166.494972][ T1063] bond0 (unregistering): Released all slaves [ 167.295152][ T1063] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 167.303072][ T1063] #PF: supervisor read access in kernel mode [ 167.309135][ T1063] #PF: error_code(0x0000) - not-present page [ 167.315189][ T1063] PGD 0 P4D 0 [ 167.318797][ T1063] Oops: 0000 [#1] SMP [ 167.322891][ T1063] CPU: 0 PID: 1063 Comm: kworker/u4:11 Not tainted 5.10.0-rc1-syzkaller #0 [ 167.331563][ T1063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.341752][ T1063] Workqueue: netns cleanup_net [ 167.346660][ T1063] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 167.352151][ T1063] 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 [ 167.371858][ T1063] RSP: 0018:ffff888102f9ba38 EFLAGS: 00010246 [ 167.378048][ T1063] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105d61ec0 [ 167.386115][ T1063] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126329000 [ 167.394183][ T1063] RBP: ffff888102f9bac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 167.402241][ T1063] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 167.410305][ T1063] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105d628c0 [ 167.418388][ T1063] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 167.427416][ T1063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 167.434091][ T1063] CR2: 000000000000009c CR3: 00000001225c6000 CR4: 00000000001506f0 [ 167.442145][ T1063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 167.450202][ T1063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 167.458242][ T1063] Call Trace: [ 167.461650][ T1063] ? up_write+0x62/0x220 [ 167.466008][ T1063] afs_cell_purge+0xfb/0x5e0 [ 167.470721][ T1063] ? del_timer_sync+0x131/0x1f0 [ 167.475715][ T1063] ? afs_fs_probe_cleanup+0x111/0x140 [ 167.481199][ T1063] afs_net_exit+0xc6/0x180 [ 167.485721][ T1063] ? afs_net_init+0xe90/0xe90 [ 167.490489][ T1063] cleanup_net+0xd73/0x1af0 [ 167.495109][ T1063] ? ops_init+0x7d0/0x7d0 [ 167.499543][ T1063] process_one_work+0x121c/0x1fc0 [ 167.504700][ T1063] worker_thread+0x10cc/0x2740 [ 167.509567][ T1063] ? kmsan_get_metadata+0x116/0x180 [ 167.514867][ T1063] ? kmsan_get_metadata+0x116/0x180 [ 167.520201][ T1063] kthread+0x51c/0x560 [ 167.524379][ T1063] ? process_one_work+0x1fc0/0x1fc0 [ 167.529697][ T1063] ? kthread_blkcg+0x110/0x110 [ 167.534566][ T1063] ret_from_fork+0x1f/0x30 [ 167.539049][ T1063] Modules linked in: [ 167.543037][ T1063] CR2: 000000000000009c [ 167.547289][ T1063] ---[ end trace 3e34f48282586c39 ]--- [ 167.552849][ T1063] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 167.558338][ T1063] 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 [ 167.578036][ T1063] RSP: 0018:ffff888102f9ba38 EFLAGS: 00010246 [ 167.584216][ T1063] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105d61ec0 [ 167.592274][ T1063] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126329000 [ 167.600338][ T1063] RBP: ffff888102f9bac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 167.608391][ T1063] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 167.616447][ T1063] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105d628c0 [ 167.624516][ T1063] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 167.633531][ T1063] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 167.640196][ T1063] CR2: 000000000000009c CR3: 00000001225c6000 CR4: 00000000001506f0 [ 167.648246][ T1063] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 167.656298][ T1063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 167.664342][ T1063] Kernel panic - not syncing: Fatal exception [ 167.671178][ T1063] Kernel Offset: disabled [ 167.675532][ T1063] Rebooting in 86400 seconds..