[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.71' (ECDSA) to the list of known hosts. 2020/08/27 19:27:24 parsed 1 programs 2020/08/27 19:27:24 executed programs: 0 syzkaller login: [ 149.144914][ T6862] IPVS: ftp: loaded support on port[0] = 21 [ 149.347516][ T6862] chnl_net:caif_netlink_parms(): no params data found [ 149.398416][ T6862] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.405794][ T6862] bridge0: port 1(bridge_slave_0) entered disabled state [ 149.414876][ T6862] device bridge_slave_0 entered promiscuous mode [ 149.423723][ T6862] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.431478][ T6862] bridge0: port 2(bridge_slave_1) entered disabled state [ 149.439637][ T6862] device bridge_slave_1 entered promiscuous mode [ 149.460530][ T6862] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 149.471342][ T6862] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 149.494708][ T6862] team0: Port device team_slave_0 added [ 149.502023][ T6862] team0: Port device team_slave_1 added [ 149.520037][ T6862] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 149.527226][ T6862] 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. [ 149.554028][ T6862] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 149.567160][ T6862] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 149.574099][ T6862] 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. [ 149.601305][ T6862] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 149.628056][ T6862] device hsr_slave_0 entered promiscuous mode [ 149.634746][ T6862] device hsr_slave_1 entered promiscuous mode [ 149.731988][ T6862] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 149.741762][ T6862] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 149.757704][ T6862] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 149.766943][ T6862] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 149.791333][ T6862] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.798507][ T6862] bridge0: port 2(bridge_slave_1) entered forwarding state [ 149.806791][ T6862] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.813858][ T6862] bridge0: port 1(bridge_slave_0) entered forwarding state [ 149.862265][ T6862] 8021q: adding VLAN 0 to HW filter on device bond0 [ 149.876000][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 149.886895][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 149.894817][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 149.903374][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 149.918316][ T6862] 8021q: adding VLAN 0 to HW filter on device team0 [ 149.930919][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 149.939419][ T2808] bridge0: port 1(bridge_slave_0) entered blocking state [ 149.946553][ T2808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 149.966893][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 149.975247][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 149.982451][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 149.991028][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 150.008561][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 150.017228][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 150.025632][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 150.039146][ T6862] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 150.050933][ T6862] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 150.061320][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 150.079558][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 150.087642][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 150.102675][ T6862] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 150.122078][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 150.143135][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 150.152506][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 150.160743][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 150.171490][ T6862] device veth0_vlan entered promiscuous mode [ 150.183386][ T6862] device veth1_vlan entered promiscuous mode [ 150.204205][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 150.212964][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 150.221549][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 150.232312][ T6862] device veth0_macvtap entered promiscuous mode [ 150.241906][ T6862] device veth1_macvtap entered promiscuous mode [ 150.259522][ T6862] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 150.267834][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 150.281425][ T7081] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 150.293382][ T6862] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 150.301249][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 150.312762][ T6862] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 150.322889][ T6862] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 150.331758][ T6862] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 150.340538][ T6862] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 151.187685][ T2808] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/27 19:27:29 executed programs: 73 [ 153.273221][ T2808] Bluetooth: hci0: command 0x041b tx timeout [ 155.346728][ T40] Bluetooth: hci0: command 0x040f tx timeout [ 157.427083][ T12] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/27 19:27:34 executed programs: 223 2020/08/27 19:27:39 executed programs: 370 2020/08/27 19:27:44 executed programs: 522 2020/08/27 19:27:49 executed programs: 662 2020/08/27 19:27:54 executed programs: 814 2020/08/27 19:27:59 executed programs: 966 2020/08/27 19:28:04 executed programs: 1116 [ 191.168121][T11412] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 191.179870][T11412] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 191.188281][T11412] CPU: 1 PID: 11412 Comm: syz-executor.0 Not tainted 5.9.0-rc2-syzkaller #0 [ 191.196943][T11412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 191.207030][T11412] RIP: 0010:__sock_release+0xbb/0x280 [ 191.212426][T11412] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 a5 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 20 49 8d 7c 24 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8e 01 00 00 48 89 df 41 ff 54 24 10 48 8d 7b 18 [ 191.232053][T11412] RSP: 0018:ffffc9000865fe28 EFLAGS: 00010202 [ 191.238116][T11412] RAX: dffffc0000000000 RBX: ffff8880859f7a80 RCX: 1ffff920010cbf67 [ 191.246081][T11412] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010 [ 191.254044][T11412] RBP: ffff8880859f7c20 R08: ffff8880859f7c20 R09: ffff8880859f7c33 [ 191.262043][T11412] R10: ffffed1010b3ef86 R11: 0000000000000000 R12: 0000000000000000 [ 191.269999][T11412] R13: ffff8880859f7aa0 R14: 0000000000000000 R15: ffff888089fe9818 [ 191.277968][T11412] FS: 000000000323b940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 191.286913][T11412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 191.293501][T11412] CR2: 00007f3d38ba1db8 CR3: 00000000a92fc000 CR4: 00000000001506e0 [ 191.301457][T11412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 191.309418][T11412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 191.317365][T11412] Call Trace: [ 191.320640][T11412] sock_close+0x18/0x20 [ 191.324774][T11412] __fput+0x285/0x920 [ 191.328738][T11412] ? __sock_release+0x280/0x280 [ 191.333566][T11412] task_work_run+0xdd/0x190 [ 191.338056][T11412] exit_to_user_mode_prepare+0x195/0x1c0 [ 191.343666][T11412] syscall_exit_to_user_mode+0x59/0x2b0 [ 191.349188][T11412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 191.355054][T11412] RIP: 0033:0x416f01 [ 191.358941][T11412] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 191.379417][T11412] RSP: 002b:00007ffdc1b3fe40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 191.387826][T11412] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416f01 [ 191.395789][T11412] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 0000000000000003 [ 191.404482][T11412] RBP: 0000000000000000 R08: 0000000001190358 R09: 0000000000000000 [ 191.412475][T11412] R10: 00007ffdc1b3ff20 R11: 0000000000000293 R12: 0000000001190360 [ 191.420445][T11412] R13: 0000000000000000 R14: ffffffffffffffff R15: 000000000118cf4c [ 191.428422][T11412] Modules linked in: [ 191.432764][T11412] ---[ end trace 99238214bf463a8c ]--- [ 191.438267][T11412] RIP: 0010:__sock_release+0xbb/0x280 [ 191.443642][T11412] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 a5 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 20 49 8d 7c 24 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 8e 01 00 00 48 89 df 41 ff 54 24 10 48 8d 7b 18 [ 191.463350][T11412] RSP: 0018:ffffc9000865fe28 EFLAGS: 00010202 [ 191.469478][T11412] RAX: dffffc0000000000 RBX: ffff8880859f7a80 RCX: 1ffff920010cbf67 [ 191.477521][T11412] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000010 [ 191.485502][T11412] RBP: ffff8880859f7c20 R08: ffff8880859f7c20 R09: ffff8880859f7c33 [ 191.493522][T11412] R10: ffffed1010b3ef86 R11: 0000000000000000 R12: 0000000000000000 [ 191.501562][T11412] R13: ffff8880859f7aa0 R14: 0000000000000000 R15: ffff888089fe9818 [ 191.509733][T11412] FS: 000000000323b940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 191.518734][T11412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 191.525313][T11412] CR2: 00007f3d38ba1db8 CR3: 00000000a92fc000 CR4: 00000000001506e0 [ 191.533344][T11412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 191.541415][T11412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 191.549434][T11412] Kernel panic - not syncing: Fatal exception [ 191.556672][T11412] Kernel Offset: disabled [ 191.560985][T11412] Rebooting in 86400 seconds..