[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.237' (ECDSA) to the list of known hosts. 2020/05/27 06:36:06 parsed 1 programs 2020/05/27 06:36:06 executed programs: 0 syzkaller login: [ 60.468407][ T6824] IPVS: ftp: loaded support on port[0] = 21 [ 60.559903][ T6824] chnl_net:caif_netlink_parms(): no params data found [ 60.614081][ T6824] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.621813][ T6824] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.630790][ T6824] device bridge_slave_0 entered promiscuous mode [ 60.639738][ T6824] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.648010][ T6824] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.656111][ T6824] device bridge_slave_1 entered promiscuous mode [ 60.677116][ T6824] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.688039][ T6824] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.710385][ T6824] team0: Port device team_slave_0 added [ 60.718080][ T6824] team0: Port device team_slave_1 added [ 60.736457][ T6824] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.744347][ T6824] 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. [ 60.770572][ T6824] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.784026][ T6824] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.790986][ T6824] 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. [ 60.817036][ T6824] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.875599][ T6824] device hsr_slave_0 entered promiscuous mode [ 60.932562][ T6824] device hsr_slave_1 entered promiscuous mode [ 61.050438][ T6824] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.085662][ T6824] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.154941][ T6824] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.195062][ T6824] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.249576][ T6824] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.256762][ T6824] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.264936][ T6824] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.272122][ T6824] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.319759][ T6824] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.334935][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.345419][ T2516] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.354773][ T2516] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.363304][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.377216][ T6824] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.388016][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.397875][ T3693] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.405001][ T3693] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.417801][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.426749][ T2516] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.433864][ T2516] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.453384][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.464044][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.483825][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.494404][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.502939][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.515107][ T6824] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.534339][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.542983][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.555756][ T6824] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.577528][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.586538][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.607184][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.615910][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.625841][ T2511] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.634626][ T2511] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.645128][ T6824] device veth0_vlan entered promiscuous mode [ 61.661065][ T6824] device veth1_vlan entered promiscuous mode [ 61.685239][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.694239][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.703439][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.712608][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.724398][ T6824] device veth0_macvtap entered promiscuous mode [ 61.735964][ T6824] device veth1_macvtap entered promiscuous mode [ 61.752447][ T6824] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.760136][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.770005][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.778742][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.787503][ T3693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.799004][ T6824] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 61.807879][ T3690] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 61.817178][ T3690] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/05/27 06:36:08 result: hanged=false err=executor 0: exit status 67 failed to mkdir (errno 30) loop exited with status 67 failed to mkdir (errno 30) loop exited with status 67 [ 62.776565][ T7037] ------------[ cut here ]------------ [ 62.782275][ T7037] WARNING: CPU: 1 PID: 7037 at kernel/cgroup/cgroup.c:3111 cgroup_apply_control_disable+0x404/0x4d0 [ 62.793026][ T7037] Kernel panic - not syncing: panic_on_warn set ... [ 62.799610][ T7037] CPU: 1 PID: 7037 Comm: syz-executor.0 Not tainted 5.7.0-rc7-next-20200526-syzkaller #0 [ 62.809401][ T7037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.819445][ T7037] Call Trace: [ 62.822745][ T7037] dump_stack+0x18f/0x20d [ 62.827089][ T7037] ? cgroup_apply_control_disable+0x3e0/0x4d0 [ 62.833139][ T7037] panic+0x2e3/0x75c [ 62.837101][ T7037] ? __warn_printk+0xf3/0xf3 [ 62.841718][ T7037] ? printk+0xba/0xed [ 62.845687][ T7037] ? log_store.cold+0x16/0x16 [ 62.850365][ T7037] ? __warn.cold+0x14/0x3a [ 62.854760][ T7037] ? __warn+0xd6/0x1b2 [ 62.858820][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.864868][ T7037] __warn.cold+0x2f/0x3a [ 62.869088][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.875126][ T7037] report_bug+0x27b/0x2f0 [ 62.879432][ T7037] do_error_trap+0x153/0x2b0 [ 62.883997][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.890041][ T7037] exc_invalid_op+0x34/0x40 [ 62.894520][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.900576][ T7037] asm_exc_invalid_op+0x14/0x20 [ 62.905508][ T7037] RIP: 0010:cgroup_apply_control_disable+0x404/0x4d0 [ 62.912168][ T7037] Code: ff ff ff e8 ee 8f 06 00 48 89 ef 41 ff d5 e9 1a ff ff ff e8 de 8f 06 00 48 89 ef e8 46 e0 fe ff e9 08 ff ff ff e8 cc 8f 06 00 <0f> 0b e9 ab fd ff ff 48 83 c4 30 5b 5d 41 5c 41 5d 41 5e 41 5f e9 [ 62.931762][ T7037] RSP: 0018:ffffc900016e7b28 EFLAGS: 00010293 [ 62.937824][ T7037] RAX: ffff88809191e240 RBX: dffffc0000000000 RCX: ffffffff816c58cd [ 62.945770][ T7037] RDX: 0000000000000000 RSI: ffffffff816c5b24 RDI: 0000000000000007 [ 62.953727][ T7037] RBP: ffff888095794800 R08: ffff88809191e240 R09: ffffed1015ce718c [ 62.961865][ T7037] R10: ffff8880ae738c5b R11: ffffed1015ce718b R12: 0000000000000008 [ 62.969815][ T7037] R13: 0000000000000002 R14: ffffffff89a33e80 R15: ffff888089ea6000 [ 62.977800][ T7037] ? cgroup_apply_control_disable+0x1ad/0x4d0 [ 62.983864][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.990053][ T7037] ? cgroup_apply_control_disable+0x404/0x4d0 [ 62.996108][ T7037] rebind_subsystems+0x3cc/0xb10 [ 63.001043][ T7037] ? cgroup_apply_control_disable+0x4d0/0x4d0 [ 63.007092][ T7037] ? css_populate_dir+0x288/0x450 [ 63.012109][ T7037] cgroup_setup_root+0x36a/0xa20 [ 63.017027][ T7037] ? rebind_subsystems+0xb10/0xb10 [ 63.022130][ T7037] ? init_cgroup_housekeeping+0x3f0/0x580 [ 63.027828][ T7037] cgroup1_get_tree+0xce3/0x12ad [ 63.032748][ T7037] vfs_get_tree+0x89/0x2f0 [ 63.037151][ T7037] do_mount+0x12f9/0x1b50 [ 63.041559][ T7037] ? copy_mount_string+0x40/0x40 [ 63.046500][ T7037] ? copy_user_enhanced_fast_string+0xe/0x30 [ 63.052457][ T7037] ? _copy_from_user+0x13c/0x1a0 [ 63.057403][ T7037] __x64_sys_mount+0x18f/0x230 [ 63.062144][ T7037] do_syscall_64+0x60/0xe0 [ 63.066537][ T7037] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.072403][ T7037] RIP: 0033:0x45f47a [ 63.076274][ T7037] Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 8c fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 63.095948][ T7037] RSP: 002b:00007fff384d3228 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 63.104433][ T7037] RAX: ffffffffffffffda RBX: 00007fff384d3280 RCX: 000000000045f47a [ 63.112380][ T7037] RDX: 00000000004caf91 RSI: 00000000004c1665 RDI: 00000000004c1628 [ 63.120448][ T7037] RBP: 0000000000000000 R08: 00000000004cfa00 R09: 000000000000001c [ 63.128403][ T7037] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000418590 [ 63.136353][ T7037] R13: 00007fff384d34a8 R14: 0000000000000000 R15: 0000000000000000 [ 63.146151][ T7037] Kernel Offset: disabled [ 63.150547][ T7037] Rebooting in 86400 seconds..