Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. 2020/11/14 03:55:14 fuzzer started 2020/11/14 03:55:15 connecting to host at 10.128.0.26:41955 2020/11/14 03:55:15 checking machine... 2020/11/14 03:55:15 checking revisions... 2020/11/14 03:55:15 testing simple program... executing program executing program syzkaller login: [ 160.628429][ T8285] IPVS: ftp: loaded support on port[0] = 21 [ 160.950796][ T8285] chnl_net:caif_netlink_parms(): no params data found [ 161.051418][ T8285] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.058943][ T8285] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.069106][ T8285] device bridge_slave_0 entered promiscuous mode [ 161.080273][ T8285] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.088035][ T8285] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.097508][ T8285] device bridge_slave_1 entered promiscuous mode [ 161.131780][ T8285] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 161.146678][ T8285] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 161.180955][ T8285] team0: Port device team_slave_0 added [ 161.190741][ T8285] team0: Port device team_slave_1 added [ 161.223655][ T8285] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 161.230747][ T8285] 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. [ 161.257339][ T8285] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 161.270615][ T8285] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 161.277902][ T8285] 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. [ 161.306652][ T8285] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 161.350079][ T8285] device hsr_slave_0 entered promiscuous mode [ 161.357951][ T8285] device hsr_slave_1 entered promiscuous mode [ 161.539771][ T8285] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 161.551966][ T8285] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 161.568730][ T8285] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 161.586346][ T8285] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 161.684688][ T8285] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.691888][ T8285] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.699775][ T8285] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.707253][ T8285] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.788209][ T8285] 8021q: adding VLAN 0 to HW filter on device bond0 [ 161.810819][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 161.821520][ T2980] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.834373][ T2980] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.845068][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 161.864559][ T8285] 8021q: adding VLAN 0 to HW filter on device team0 [ 161.882724][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 161.891946][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 161.901416][ T3271] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.909324][ T3271] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.955429][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 161.965258][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 161.975402][ T3271] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.985177][ T3271] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.994626][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 162.009177][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 162.025617][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 162.037327][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 162.050284][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 162.061282][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 162.077341][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 162.094788][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 162.108865][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 162.133014][ T8285] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 162.146269][ T8285] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 162.160154][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 162.171018][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 162.204691][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 162.212440][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 162.233692][ T8285] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 162.270035][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 162.280104][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 162.315511][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 162.324536][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 162.342431][ T8285] device veth0_vlan entered promiscuous mode [ 162.356318][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready executing program [ 162.364961][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 162.384850][ T8285] device veth1_vlan entered promiscuous mode [ 162.433506][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 162.442946][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 162.451604][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 162.461678][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 162.475844][ T8285] device veth0_macvtap entered promiscuous mode [ 162.491536][ T8285] device veth1_macvtap entered promiscuous mode [ 162.503507][ T2980] Bluetooth: hci0: command 0x0409 tx timeout [ 162.531474][ T8285] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 162.539260][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 162.549176][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 162.558502][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 162.568678][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 162.588568][ T8285] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 162.596950][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 162.607148][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 162.627669][ T8285] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 162.637734][ T8285] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 162.647023][ T8285] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 162.656248][ T8285] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 162.905411][ T971] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 162.913633][ T971] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 162.923205][ T3271] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 163.035028][ T228] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 163.043078][ T228] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 163.051743][ T2980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 2020/11/14 03:55:25 building call list... [ 164.047373][ T28] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 164.213821][ T28] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 164.367069][ T28] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 164.555245][ T28] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 167.701217][ T28] device hsr_slave_0 left promiscuous mode [ 167.716313][ T28] device hsr_slave_1 left promiscuous mode [ 167.730404][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 167.738948][ T28] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 167.757380][ T28] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 167.765070][ T28] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 167.781149][ T28] device bridge_slave_1 left promiscuous mode [ 167.788206][ T28] bridge0: port 2(bridge_slave_1) entered disabled state [ 167.806249][ T28] device bridge_slave_0 left promiscuous mode [ 167.813415][ T28] bridge0: port 1(bridge_slave_0) entered disabled state [ 167.842187][ T28] device veth1_macvtap left promiscuous mode [ 167.848775][ T28] device veth0_macvtap left promiscuous mode [ 167.855130][ T28] device veth1_vlan left promiscuous mode [ 167.861112][ T28] device veth0_vlan left promiscuous mode executing program executing program [ 171.608913][ T28] team0 (unregistering): Port device team_slave_1 removed [ 171.633763][ T28] team0 (unregistering): Port device team_slave_0 removed [ 171.658962][ T28] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 171.684226][ T28] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 171.790232][ T28] bond0 (unregistering): Released all slaves [ 172.484820][ T28] BUG: kernel NULL pointer dereference, address: 000000000000009c [ 172.493110][ T28] #PF: supervisor read access in kernel mode [ 172.499510][ T28] #PF: error_code(0x0000) - not-present page [ 172.505577][ T28] PGD 12487c067 P4D 12487c067 PUD 116758067 PMD 0 [ 172.512325][ T28] Oops: 0000 [#1] SMP [ 172.516427][ T28] CPU: 0 PID: 28 Comm: kworker/u4:2 Not tainted 5.10.0-rc1-syzkaller #0 [ 172.525360][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 172.536192][ T28] Workqueue: netns cleanup_net [ 172.541106][ T28] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 172.546613][ T28] 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 [ 172.566410][ T28] RSP: 0018:ffff888102c57a38 EFLAGS: 00010246 [ 172.572614][ T28] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888102c89ec0 [ 172.580679][ T28] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126e11c00 [ 172.588849][ T28] RBP: ffff888102c57ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 172.597105][ T28] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 172.605177][ T28] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888102c8a8c0 [ 172.613341][ T28] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 172.622373][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 172.629820][ T28] CR2: 000000000000009c CR3: 0000000126d6b000 CR4: 00000000001506f0 [ 172.637989][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 172.646222][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 172.654275][ T28] Call Trace: [ 172.657697][ T28] ? up_write+0x62/0x220 [ 172.662317][ T28] afs_cell_purge+0xfb/0x5e0 [ 172.667557][ T28] ? del_timer_sync+0x131/0x1f0 [ 172.672522][ T28] ? afs_fs_probe_cleanup+0x111/0x140 [ 172.678029][ T28] afs_net_exit+0xc6/0x180 [ 172.682566][ T28] ? afs_net_init+0xe90/0xe90 [ 172.687354][ T28] cleanup_net+0xd73/0x1af0 [ 172.692020][ T28] ? ops_init+0x7d0/0x7d0 [ 172.696483][ T28] process_one_work+0x121c/0x1fc0 [ 172.701679][ T28] worker_thread+0x10cc/0x2740 [ 172.706605][ T28] ? kmsan_get_metadata+0x116/0x180 [ 172.712569][ T28] ? kmsan_get_metadata+0x116/0x180 [ 172.718021][ T28] kthread+0x51c/0x560 [ 172.722217][ T28] ? process_one_work+0x1fc0/0x1fc0 [ 172.727644][ T28] ? kthread_blkcg+0x110/0x110 [ 172.732616][ T28] ret_from_fork+0x1f/0x30 [ 172.737109][ T28] Modules linked in: [ 172.741111][ T28] CR2: 000000000000009c [ 172.745418][ T28] ---[ end trace 38726f77a195b475 ]--- [ 172.751030][ T28] RIP: 0010:afs_unuse_cell+0x67/0x780 [ 172.756530][ T28] 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 [ 172.776254][ T28] RSP: 0018:ffff888102c57a38 EFLAGS: 00010246 [ 172.782459][ T28] RAX: ffffffff843e3717 RBX: 000000000000009c RCX: ffff888102c89ec0 [ 172.790536][ T28] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888126e11c00 [ 172.798635][ T28] RBP: ffff888102c57ac0 R08: ffffea000000000f R09: ffff88813fffa000 [ 172.806711][ T28] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 172.814808][ T28] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888102c8a8c0 [ 172.822977][ T28] FS: 0000000000000000(0000) GS:ffff88813fc00000(0000) knlGS:0000000000000000 [ 172.832013][ T28] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 172.838703][ T28] CR2: 000000000000009c CR3: 0000000126d6b000 CR4: 00000000001506f0 [ 172.846773][ T28] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 172.854842][ T28] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 172.862897][ T28] Kernel panic - not syncing: Fatal exception [ 172.869658][ T28] Kernel Offset: disabled [ 172.874356][ T28] Rebooting in 86400 seconds..