Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. 2020/11/12 22:51:42 fuzzer started 2020/11/12 22:51:43 connecting to host at 10.128.0.26:45197 2020/11/12 22:51:43 checking machine... 2020/11/12 22:51:43 checking revisions... 2020/11/12 22:51:44 testing simple program... executing program executing program syzkaller login: [ 155.987944][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 156.335926][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 156.461001][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 156.469028][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 156.478543][ T8282] device bridge_slave_0 entered promiscuous mode [ 156.489574][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 156.497329][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 156.506636][ T8282] device bridge_slave_1 entered promiscuous mode [ 156.541484][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 156.555766][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 156.590848][ T8282] team0: Port device team_slave_0 added [ 156.600648][ T8282] team0: Port device team_slave_1 added [ 156.632436][ T8282] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 156.639569][ T8282] 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. [ 156.665792][ T8282] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 156.679393][ T8282] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 156.687701][ T8282] 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. [ 156.714173][ T8282] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 156.757157][ T8282] device hsr_slave_0 entered promiscuous mode [ 156.765204][ T8282] device hsr_slave_1 entered promiscuous mode [ 156.949366][ T8282] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 156.961232][ T8282] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 156.977946][ T8282] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 156.994320][ T8282] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 157.092550][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.099808][ T8282] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.107783][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.115167][ T8282] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.193567][ T8282] 8021q: adding VLAN 0 to HW filter on device bond0 [ 157.216570][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 157.229377][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.238224][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.250493][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 157.269987][ T8282] 8021q: adding VLAN 0 to HW filter on device team0 [ 157.288910][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 157.298711][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 157.308429][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.315834][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.330309][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 157.340277][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 157.349770][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.357220][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.375269][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 157.396559][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 157.406532][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 157.416995][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 157.429041][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 157.445141][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 157.455508][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 157.485958][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 157.495284][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 157.504081][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 157.513894][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 157.528083][ T8282] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 157.558968][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 157.566976][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 157.590158][ T8282] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 157.624231][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 157.633794][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 157.677145][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 157.686983][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 157.704028][ T8282] device veth0_vlan entered promiscuous mode [ 157.712443][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 157.722093][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 157.745563][ T8282] device veth1_vlan entered promiscuous mode [ 157.787933][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 157.797064][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 157.806478][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 157.816236][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 157.831964][ T8282] device veth0_macvtap entered promiscuous mode [ 157.850690][ T8282] device veth1_macvtap entered promiscuous mode [ 157.882693][ T8282] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 157.891090][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 157.900645][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 157.909633][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 157.919765][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 157.937190][ T8282] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 157.949586][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 157.960834][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 157.970906][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 157.975392][ T8282] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.986379][ T8282] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 157.995483][ T8282] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.004323][ T8282] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 158.287578][ T708] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.295720][ T708] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 158.303491][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 158.406083][ T629] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.414051][ T629] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 158.423430][ T8501] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/12 22:51:53 building call list... [ 159.555218][ T629] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.729083][ T629] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 159.874631][ T629] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.000234][ T629] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 163.202612][ T629] device hsr_slave_0 left promiscuous mode [ 163.218817][ T629] device hsr_slave_1 left promiscuous mode [ 163.239561][ T629] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 163.247529][ T629] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 163.258683][ T629] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 163.266620][ T629] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 163.278060][ T629] device bridge_slave_1 left promiscuous mode [ 163.284826][ T629] bridge0: port 2(bridge_slave_1) entered disabled state [ 163.297358][ T629] device bridge_slave_0 left promiscuous mode [ 163.304208][ T629] bridge0: port 1(bridge_slave_0) entered disabled state [ 163.327883][ T629] device veth1_macvtap left promiscuous mode [ 163.334009][ T629] device veth0_macvtap left promiscuous mode [ 163.340479][ T629] device veth1_vlan left promiscuous mode [ 163.346750][ T629] device veth0_vlan left promiscuous mode executing program executing program [ 167.139992][ T629] team0 (unregistering): Port device team_slave_1 removed [ 167.161103][ T629] team0 (unregistering): Port device team_slave_0 removed [ 167.178983][ T629] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 167.203991][ T629] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 167.311671][ T629] bond0 (unregistering): Released all slaves [ 168.147269][ T629] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 168.155197][ T629] #PF: supervisor read access in kernel mode [ 168.161251][ T629] #PF: error_code(0x0000) - not-present page [ 168.167295][ T629] PGD 10526c067 P4D 10526c067 PUD 11898e067 PMD 0 [ 168.174014][ T629] Oops: 0000 [#1] SMP [ 168.178091][ T629] CPU: 1 PID: 629 Comm: kworker/u4:8 Not tainted 5.10.0-rc1-syzkaller #0 [ 168.186600][ T629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.196779][ T629] Workqueue: netns cleanup_net [ 168.201673][ T629] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.207177][ T629] 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 [ 168.226880][ T629] RSP: 0018:ffff888105307a38 EFLAGS: 00010246 [ 168.233056][ T629] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881052fbd80 [ 168.241111][ T629] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888118a20000 [ 168.249176][ T629] RBP: ffff888105307ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.257228][ T629] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.265292][ T629] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881052fc780 [ 168.273489][ T629] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.282516][ T629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.289193][ T629] CR2: 000000000000009c CR3: 00000001202ca000 CR4: 00000000001506e0 [ 168.297248][ T629] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.305313][ T629] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.313368][ T629] Call Trace: [ 168.316802][ T629] ? up_write+0x62/0x220 [ 168.321151][ T629] afs_cell_purge+0xfb/0x5e0 [ 168.325855][ T629] ? del_timer_sync+0x131/0x1f0 [ 168.330826][ T629] ? afs_fs_probe_cleanup+0x111/0x140 [ 168.336310][ T629] afs_net_exit+0xc6/0x180 [ 168.340828][ T629] ? afs_net_init+0xe90/0xe90 [ 168.345599][ T629] cleanup_net+0xd73/0x1af0 [ 168.350214][ T629] ? ops_init+0x7d0/0x7d0 [ 168.354647][ T629] process_one_work+0x121c/0x1fc0 [ 168.359800][ T629] worker_thread+0x10cc/0x2740 [ 168.364678][ T629] ? kmsan_get_metadata+0x116/0x180 [ 168.370019][ T629] kthread+0x51c/0x560 [ 168.374194][ T629] ? process_one_work+0x1fc0/0x1fc0 [ 168.379512][ T629] ? kthread_blkcg+0x110/0x110 [ 168.384402][ T629] ret_from_fork+0x1f/0x30 [ 168.388884][ T629] Modules linked in: [ 168.392871][ T629] CR2: 000000000000009c [ 168.397119][ T629] ---[ end trace fe890984e75c25a3 ]--- [ 168.402704][ T629] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.408214][ T629] 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 [ 168.428266][ T629] RSP: 0018:ffff888105307a38 EFLAGS: 00010246 [ 168.434445][ T629] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881052fbd80 [ 168.442505][ T629] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888118a20000 [ 168.450570][ T629] RBP: ffff888105307ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.458624][ T629] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.466680][ T629] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881052fc780 [ 168.474838][ T629] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.483851][ T629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.490517][ T629] CR2: 000000000000009c CR3: 00000001202ca000 CR4: 00000000001506e0 [ 168.498574][ T629] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.506630][ T629] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.514676][ T629] Kernel panic - not syncing: Fatal exception [ 168.521652][ T629] Kernel Offset: disabled [ 168.526090][ T629] Rebooting in 86400 seconds..