Warning: Permanently added '10.128.0.196' (ECDSA) to the list of known hosts. 2020/11/12 23:47:31 fuzzer started 2020/11/12 23:47:31 connecting to host at 10.128.0.26:35791 2020/11/12 23:47:31 checking machine... 2020/11/12 23:47:31 checking revisions... 2020/11/12 23:47:32 testing simple program... executing program executing program syzkaller login: [ 156.617383][ T8280] IPVS: ftp: loaded support on port[0] = 21 [ 157.017634][ T8280] chnl_net:caif_netlink_parms(): no params data found [ 157.113269][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.120630][ T8280] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.130280][ T8280] device bridge_slave_0 entered promiscuous mode [ 157.140633][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.148054][ T8280] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.157130][ T8280] device bridge_slave_1 entered promiscuous mode [ 157.190866][ T8280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 157.205664][ T8280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 157.239328][ T8280] team0: Port device team_slave_0 added [ 157.248702][ T8280] team0: Port device team_slave_1 added [ 157.279265][ T8280] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 157.286584][ T8280] 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. [ 157.313095][ T8280] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 157.326357][ T8280] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 157.333567][ T8280] 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. [ 157.359673][ T8280] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 157.402412][ T8280] device hsr_slave_0 entered promiscuous mode [ 157.410363][ T8280] device hsr_slave_1 entered promiscuous mode [ 157.591672][ T8280] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 157.604133][ T8280] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 157.621034][ T8280] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 157.638812][ T8280] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 157.729434][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 157.736823][ T8280] bridge0: port 2(bridge_slave_1) entered forwarding state [ 157.744796][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.751984][ T8280] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.830388][ T8280] 8021q: adding VLAN 0 to HW filter on device bond0 [ 157.852246][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 157.863684][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 157.873023][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 157.885096][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 157.904297][ T8280] 8021q: adding VLAN 0 to HW filter on device team0 [ 157.919304][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 157.928597][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 157.938461][ T52] bridge0: port 1(bridge_slave_0) entered blocking state [ 157.945908][ T52] bridge0: port 1(bridge_slave_0) entered forwarding state [ 157.984932][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 157.994243][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 158.003788][ T52] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.011011][ T52] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.020034][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 158.030041][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 158.040871][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 158.051132][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 158.061077][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 158.071332][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 158.084284][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 158.100066][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 158.109810][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 158.134982][ T8280] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 158.146857][ T8280] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 158.156894][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 158.166223][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 158.197587][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 158.205348][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 158.227266][ T8280] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 158.261462][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 158.271114][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 158.306116][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 158.315372][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 158.332546][ T8280] device veth0_vlan entered promiscuous mode [ 158.340275][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 158.349307][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 158.371039][ T8280] device veth1_vlan entered promiscuous mode [ 158.411442][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 158.420293][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 158.429794][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 158.443430][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 158.460991][ T8280] device veth0_macvtap entered promiscuous mode [ 158.477082][ T8280] device veth1_macvtap entered promiscuous mode [ 158.508985][ T8280] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 158.517003][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 158.526634][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 158.535793][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 158.545919][ T52] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 158.564824][ T8280] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 158.580393][ T8280] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.589560][ T8280] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.598686][ T8280] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.608269][ T8280] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 158.623465][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 158.633721][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 158.644050][ T2983] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 158.891268][ T1343] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.899376][ T1343] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 158.918042][ T3485] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 158.987869][ T230] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 158.996223][ T230] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 159.006024][ T2983] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/12 23:47:41 building call list... [ 160.118722][ T230] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.360574][ T230] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.491540][ T230] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 160.655411][ T230] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 163.610217][ T230] device hsr_slave_0 left promiscuous mode [ 163.644743][ T230] device hsr_slave_1 left promiscuous mode [ 163.656709][ T230] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 163.664348][ T230] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 163.679705][ T230] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 163.687513][ T230] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 163.703390][ T230] device bridge_slave_1 left promiscuous mode [ 163.710234][ T230] bridge0: port 2(bridge_slave_1) entered disabled state [ 163.724164][ T230] device bridge_slave_0 left promiscuous mode [ 163.730952][ T230] bridge0: port 1(bridge_slave_0) entered disabled state [ 163.759012][ T230] device veth1_macvtap left promiscuous mode [ 163.765273][ T230] device veth0_macvtap left promiscuous mode [ 163.771419][ T230] device veth1_vlan left promiscuous mode [ 163.777650][ T230] device veth0_vlan left promiscuous mode executing program [ 167.551843][ T230] team0 (unregistering): Port device team_slave_1 removed [ 167.574869][ T230] team0 (unregistering): Port device team_slave_0 removed [ 167.595772][ T230] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 167.617501][ T230] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 167.725962][ T230] bond0 (unregistering): Released all slaves executing program [ 168.534571][ T230] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 168.542488][ T230] #PF: supervisor read access in kernel mode [ 168.548545][ T230] #PF: error_code(0x0000) - not-present page [ 168.554596][ T230] PGD 120334067 P4D 120334067 PUD 1261cd067 PMD 0 [ 168.561320][ T230] Oops: 0000 [#1] SMP [ 168.565420][ T230] CPU: 1 PID: 230 Comm: kworker/u4:4 Not tainted 5.10.0-rc1-syzkaller #0 [ 168.573920][ T230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.584082][ T230] Workqueue: netns cleanup_net [ 168.588977][ T230] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.594461][ T230] 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 [ 168.614179][ T230] RSP: 0018:ffff888102fffa38 EFLAGS: 00010246 [ 168.620360][ T230] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881045fbd80 [ 168.628421][ T230] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88812787f400 [ 168.636486][ T230] RBP: ffff888102fffac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.644542][ T230] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.652597][ T230] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881045fc780 [ 168.660680][ T230] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.669700][ T230] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.676419][ T230] CR2: 000000000000009c CR3: 0000000126219000 CR4: 00000000001506e0 [ 168.684497][ T230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.692565][ T230] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.700604][ T230] Call Trace: [ 168.704037][ T230] ? up_write+0x62/0x220 [ 168.708393][ T230] afs_cell_purge+0xfb/0x5e0 [ 168.713102][ T230] ? del_timer_sync+0x131/0x1f0 [ 168.718076][ T230] ? afs_fs_probe_cleanup+0x111/0x140 [ 168.723567][ T230] afs_net_exit+0xc6/0x180 [ 168.728089][ T230] ? afs_net_init+0xe90/0xe90 [ 168.732877][ T230] cleanup_net+0xd73/0x1af0 [ 168.737492][ T230] ? ops_init+0x7d0/0x7d0 [ 168.741936][ T230] process_one_work+0x121c/0x1fc0 [ 168.747097][ T230] worker_thread+0x10cc/0x2740 [ 168.751974][ T230] ? kmsan_get_metadata+0x116/0x180 [ 168.757374][ T230] ? kmsan_get_metadata+0x116/0x180 [ 168.762708][ T230] kthread+0x51c/0x560 [ 168.766899][ T230] ? process_one_work+0x1fc0/0x1fc0 [ 168.772239][ T230] ? kthread_blkcg+0x110/0x110 [ 168.777134][ T230] ret_from_fork+0x1f/0x30 [ 168.781644][ T230] Modules linked in: [ 168.785631][ T230] CR2: 000000000000009c [ 168.789884][ T230] ---[ end trace ab2c9d075db5fd4e ]--- [ 168.795452][ T230] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 168.800977][ T230] 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 [ 168.820688][ T230] RSP: 0018:ffff888102fffa38 EFLAGS: 00010246 [ 168.828351][ T230] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff8881045fbd80 [ 168.836414][ T230] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88812787f400 [ 168.844485][ T230] RBP: ffff888102fffac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 168.852545][ T230] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 168.860602][ T230] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881045fc780 [ 168.868767][ T230] FS: 0000000000000000(0000) GS:ffff88813fd00000(0000) knlGS:0000000000000000 [ 168.877792][ T230] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 168.884473][ T230] CR2: 000000000000009c CR3: 0000000126219000 CR4: 00000000001506e0 [ 168.892531][ T230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 168.900684][ T230] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 168.908734][ T230] Kernel panic - not syncing: Fatal exception [ 168.915722][ T230] Kernel Offset: disabled [ 168.920084][ T230] Rebooting in 86400 seconds..