Warning: Permanently added '10.128.0.198' (ECDSA) to the list of known hosts. 2020/11/14 04:08:39 fuzzer started 2020/11/14 04:08:40 connecting to host at 10.128.0.26:38049 2020/11/14 04:08:40 checking machine... 2020/11/14 04:08:40 checking revisions... 2020/11/14 04:08:40 testing simple program... executing program executing program syzkaller login: [ 157.166827][ T8276] IPVS: ftp: loaded support on port[0] = 21 [ 157.540983][ T8276] chnl_net:caif_netlink_parms(): no params data found [ 157.658383][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.665709][ T8276] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.675894][ T8276] device bridge_slave_0 entered promiscuous mode [ 157.687466][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.695068][ T8276] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.704457][ T8276] device bridge_slave_1 entered promiscuous mode [ 157.739112][ T8276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 157.752195][ T8276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 157.788828][ T8276] team0: Port device team_slave_0 added [ 157.798221][ T8276] team0: Port device team_slave_1 added [ 157.829819][ T8276] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 157.837025][ T8276] 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. [ 157.863308][ T8276] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 157.876553][ T8276] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 157.883803][ T8276] 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. [ 157.910066][ T8276] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 157.955540][ T8276] device hsr_slave_0 entered promiscuous mode [ 157.963709][ T8276] device hsr_slave_1 entered promiscuous mode [ 158.147039][ T8276] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 158.159098][ T8276] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 158.176189][ T8276] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 158.194430][ T8276] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 158.291001][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.298286][ T8276] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.306146][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.313626][ T8276] bridge0: port 1(bridge_slave_0) entered forwarding state [ 158.395545][ T8276] 8021q: adding VLAN 0 to HW filter on device bond0 [ 158.418045][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 158.429605][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 158.440460][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 158.450650][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 158.469911][ T8276] 8021q: adding VLAN 0 to HW filter on device team0 [ 158.488165][ T3657] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 158.497139][ T3657] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.504565][ T3657] bridge0: port 1(bridge_slave_0) entered forwarding state [ 158.537276][ T3657] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 158.546982][ T3657] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.554448][ T3657] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.575014][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 158.584717][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 158.613421][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 158.622211][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 158.634700][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 158.646014][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 158.655759][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 158.671367][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 158.681128][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 158.701091][ T8276] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 158.734414][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 158.741960][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 158.763837][ T8276] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 158.798496][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 158.808360][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 158.846157][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 158.855282][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 158.873942][ T8276] device veth0_vlan entered promiscuous mode [ 158.886184][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 158.894901][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 158.917912][ T8276] device veth1_vlan entered promiscuous mode [ 158.959059][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 158.968242][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 158.977799][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 158.987495][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 159.007277][ T8276] device veth0_macvtap entered promiscuous mode [ 159.021309][ T8276] device veth1_macvtap entered promiscuous mode [ 159.056154][ T8276] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 159.063851][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 159.072720][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 159.081298][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 159.091256][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 159.109152][ T8276] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 159.123245][ T8276] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.132098][ T8276] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.141117][ T8276] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.150151][ T8276] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.165568][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 159.175615][ T8497] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 159.187569][ T8497] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 159.434811][ T1141] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 159.442852][ T1141] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 159.450466][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 159.549111][ T1141] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 159.557607][ T1141] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 159.571066][ T55] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/14 04:08:49 building call list... [ 160.574963][ T574] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.848475][ T574] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 161.002947][ T574] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 161.153864][ T574] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 164.001901][ T574] device hsr_slave_0 left promiscuous mode [ 164.023882][ T574] device hsr_slave_1 left promiscuous mode [ 164.034137][ T574] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 164.041654][ T574] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 164.059691][ T574] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 164.067344][ T574] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 164.091157][ T574] device bridge_slave_1 left promiscuous mode [ 164.098945][ T574] bridge0: port 2(bridge_slave_1) entered disabled state [ 164.110774][ T574] device bridge_slave_0 left promiscuous mode [ 164.117918][ T574] bridge0: port 1(bridge_slave_0) entered disabled state [ 164.143625][ T574] device veth1_macvtap left promiscuous mode [ 164.149774][ T574] device veth0_macvtap left promiscuous mode [ 164.156574][ T574] device veth1_vlan left promiscuous mode [ 164.162705][ T574] device veth0_vlan left promiscuous mode executing program [ 168.003879][ T574] team0 (unregistering): Port device team_slave_1 removed [ 168.036605][ T574] team0 (unregistering): Port device team_slave_0 removed [ 168.057404][ T574] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 168.083235][ T574] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 168.192675][ T574] bond0 (unregistering): Released all slaves executing program [ 168.924449][ T574] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 168.932492][ T574] #PF: supervisor read access in kernel mode [ 168.938640][ T574] #PF: error_code(0x0000) - not-present page [ 168.944693][ T574] PGD 1170f4067 P4D 1170f4067 PUD 11710c067 PMD 0 [ 168.951425][ T574] Oops: 0000 [#1] SMP [ 168.955513][ T574] CPU: 1 PID: 574 Comm: kworker/u4:13 Not tainted 5.10.0-rc1-syzkaller #0 [ 168.964098][ T574] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.974416][ T574] Workqueue: netns cleanup_net [ 168.979326][ T574] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.984821][ T574] 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 [ 169.004548][ T574] RSP: 0018:ffff888105c0ba38 EFLAGS: 00010246 [ 169.010745][ T574] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105c01ec0 [ 169.018820][ T574] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881137dac00 [ 169.027052][ T574] RBP: ffff888105c0bac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 169.035133][ T574] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 169.043209][ T574] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105c028c0 [ 169.051524][ T574] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 169.060574][ T574] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.067619][ T574] CR2: 000000000000009c CR3: 000000012548d000 CR4: 00000000001506e0 [ 169.075823][ T574] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.083894][ T574] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.092069][ T574] Call Trace: [ 169.095497][ T574] ? up_write+0x62/0x220 [ 169.099946][ T574] afs_cell_purge+0xfb/0x5e0 [ 169.104661][ T574] ? del_timer_sync+0x131/0x1f0 [ 169.109659][ T574] ? afs_fs_probe_cleanup+0x111/0x140 [ 169.115161][ T574] afs_net_exit+0xc6/0x180 [ 169.119696][ T574] ? afs_net_init+0xe90/0xe90 [ 169.124718][ T574] cleanup_net+0xd73/0x1af0 [ 169.129339][ T574] ? ops_init+0x7d0/0x7d0 [ 169.133786][ T574] process_one_work+0x121c/0x1fc0 [ 169.138953][ T574] worker_thread+0x10cc/0x2740 [ 169.143844][ T574] ? kmsan_get_metadata+0x116/0x180 [ 169.149159][ T574] ? kmsan_get_metadata+0x116/0x180 [ 169.154503][ T574] kthread+0x51c/0x560 [ 169.158688][ T574] ? process_one_work+0x1fc0/0x1fc0 [ 169.164024][ T574] ? kthread_blkcg+0x110/0x110 [ 169.168996][ T574] ret_from_fork+0x1f/0x30 [ 169.173487][ T574] Modules linked in: [ 169.177484][ T574] CR2: 000000000000009c [ 169.181852][ T574] ---[ end trace ff1ebbb4db6c61e3 ]--- [ 169.187513][ T574] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 169.193015][ T574] 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 [ 169.212730][ T574] RSP: 0018:ffff888105c0ba38 EFLAGS: 00010246 [ 169.219086][ T574] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888105c01ec0 [ 169.227247][ T574] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881137dac00 [ 169.235383][ T574] RBP: ffff888105c0bac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 169.243520][ T574] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 169.251594][ T574] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888105c028c0 [ 169.259854][ T574] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 169.268895][ T574] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 169.275591][ T574] CR2: 000000000000009c CR3: 000000012548d000 CR4: 00000000001506e0 [ 169.283660][ T574] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 169.291793][ T574] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 169.299852][ T574] Kernel panic - not syncing: Fatal exception [ 169.306715][ T574] Kernel Offset: disabled [ 169.311150][ T574] Rebooting in 86400 seconds..