[ 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 '10.128.0.14' (ECDSA) to the list of known hosts. 2020/06/02 20:04:57 parsed 1 programs 2020/06/02 20:04:58 executed programs: 0 syzkaller login: [ 70.947684][ T29] audit: type=1400 audit(1591128298.243:8): avc: denied { execmem } for pid=6793 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 70.995810][ T6794] IPVS: ftp: loaded support on port[0] = 21 [ 71.111121][ T6794] chnl_net:caif_netlink_parms(): no params data found [ 71.168049][ T6794] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.177151][ T6794] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.186836][ T6794] device bridge_slave_0 entered promiscuous mode [ 71.196698][ T6794] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.203918][ T6794] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.212280][ T6794] device bridge_slave_1 entered promiscuous mode [ 71.234805][ T6794] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.247223][ T6794] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.273356][ T6794] team0: Port device team_slave_0 added [ 71.281231][ T6794] team0: Port device team_slave_1 added [ 71.302425][ T6794] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 71.309604][ T6794] 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. [ 71.336597][ T6794] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 71.349728][ T6794] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 71.357096][ T6794] 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. [ 71.383367][ T6794] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 71.448315][ T6794] device hsr_slave_0 entered promiscuous mode [ 71.525440][ T6794] device hsr_slave_1 entered promiscuous mode [ 71.676661][ T6794] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 71.738690][ T6794] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 71.790336][ T6794] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 71.837453][ T6794] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 71.915437][ T6794] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.922929][ T6794] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.931290][ T6794] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.938718][ T6794] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.991164][ T6794] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.007671][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.019819][ T2469] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.028784][ T2469] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.038077][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.052925][ T6794] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.066123][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.074970][ T2689] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.091909][ T2689] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.106162][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.116422][ T2469] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.126959][ T2469] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.134050][ T2469] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.155782][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.165933][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.176060][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.185908][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.202077][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 72.214413][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 72.235152][ T2689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 72.267335][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 72.277480][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 72.288222][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 72.300048][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 72.311682][ T6794] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 72.333313][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 72.341543][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 72.357402][ T6794] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 72.377955][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 72.387701][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 72.408439][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 72.417794][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 72.428596][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 72.437038][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 72.450109][ T6794] device veth0_vlan entered promiscuous mode [ 72.463148][ T6794] device veth1_vlan entered promiscuous mode [ 72.485862][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 72.493950][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 72.502838][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 72.511860][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 72.526041][ T6794] device veth0_macvtap entered promiscuous mode [ 72.536831][ T6794] device veth1_macvtap entered promiscuous mode [ 72.555823][ T6794] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 72.563592][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 72.573592][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 72.582234][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 72.591618][ T3177] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 72.604042][ T6794] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 72.622406][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 72.631430][ T3176] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/06/02 20:05:00 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 [ 73.787586][ T7007] ------------[ cut here ]------------ [ 73.793413][ T7007] WARNING: CPU: 1 PID: 7007 at kernel/cgroup/cgroup.c:3111 cgroup_apply_control_disable+0x404/0x4d0 [ 73.805804][ T7007] Kernel panic - not syncing: panic_on_warn set ... [ 73.812910][ T7007] CPU: 1 PID: 7007 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 73.821121][ T7007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.831160][ T7007] Call Trace: [ 73.834441][ T7007] dump_stack+0x188/0x20d [ 73.838760][ T7007] ? cgroup_apply_control_disable+0x340/0x4d0 [ 73.845012][ T7007] panic+0x2e3/0x75c [ 73.848892][ T7007] ? add_taint.cold+0x16/0x16 [ 73.853571][ T7007] ? printk+0xba/0xed [ 73.857536][ T7007] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 73.862977][ T7007] ? __warn.cold+0x14/0x35 [ 73.867398][ T7007] ? __warn+0xd5/0x1c8 [ 73.872540][ T7007] ? cgroup_apply_control_disable+0x404/0x4d0 [ 73.880694][ T7007] __warn.cold+0x2f/0x35 [ 73.884930][ T7007] ? cgroup_apply_control_disable+0x404/0x4d0 [ 73.891068][ T7007] report_bug+0x27b/0x2f0 [ 73.895403][ T7007] do_error_trap+0x12b/0x220 [ 73.899996][ T7007] ? cgroup_apply_control_disable+0x404/0x4d0 [ 73.906048][ T7007] do_invalid_op+0x32/0x40 [ 73.910459][ T7007] ? cgroup_apply_control_disable+0x404/0x4d0 [ 73.916506][ T7007] invalid_op+0x23/0x30 [ 73.920645][ T7007] RIP: 0010:cgroup_apply_control_disable+0x404/0x4d0 [ 73.927304][ T7007] Code: ff ff ff e8 2e 9c 06 00 48 89 ef 41 ff d5 e9 1a ff ff ff e8 1e 9c 06 00 48 89 ef e8 b6 e5 fe ff e9 08 ff ff ff e8 0c 9c 06 00 <0f> 0b e9 ab fd ff ff 48 83 c4 30 5b 5d 41 5c 41 5d 41 5e 41 5f e9 [ 73.946883][ T7007] RSP: 0018:ffffc900016d7a90 EFLAGS: 00010293 [ 73.953012][ T7007] RAX: ffff88808afa65c0 RBX: dffffc0000000000 RCX: ffffffff816c9c6d [ 73.961061][ T7007] RDX: 0000000000000000 RSI: ffffffff816c9ec4 RDI: 0000000000000007 [ 73.969009][ T7007] RBP: ffff888096afec00 R08: ffff88808afa65c0 R09: ffffed1015ce711c [ 73.976955][ T7007] R10: ffff8880ae7388db R11: ffffed1015ce711b R12: 0000000000000008 [ 73.985435][ T7007] R13: 0000000000000002 R14: ffffffff89a2f6c0 R15: ffff88809edd8000 [ 73.993419][ T7007] ? cgroup_apply_control_disable+0x1ad/0x4d0 [ 73.999473][ T7007] ? cgroup_apply_control_disable+0x404/0x4d0 [ 74.005527][ T7007] rebind_subsystems+0x3cd/0xb00 [ 74.010455][ T7007] ? cgroup_apply_control_disable+0x4d0/0x4d0 [ 74.016519][ T7007] ? css_populate_dir+0x288/0x450 [ 74.021533][ T7007] cgroup_setup_root+0x36a/0xa30 [ 74.026474][ T7007] ? rebind_subsystems+0xb00/0xb00 [ 74.031632][ T7007] ? init_cgroup_housekeeping+0x411/0x5a0 [ 74.037357][ T7007] cgroup1_get_tree+0xd69/0x13b6 [ 74.042330][ T7007] ? cgroup1_reconfigure+0x7d0/0x7d0 [ 74.047599][ T7007] ? security_capable+0x8e/0xc0 [ 74.052489][ T7007] vfs_get_tree+0x89/0x2f0 [ 74.057193][ T7007] do_mount+0x1306/0x1b40 [ 74.061503][ T7007] ? copy_mount_string+0x40/0x40 [ 74.066518][ T7007] ? _copy_from_user+0x13c/0x1a0 [ 74.071445][ T7007] __x64_sys_mount+0x18f/0x230 [ 74.076209][ T7007] do_syscall_64+0xf6/0x7d0 [ 74.080693][ T7007] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 74.090469][ T7007] RIP: 0033:0x45f4ba [ 74.094354][ T7007] 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 [ 74.114109][ T7007] RSP: 002b:00007ffca09bb6b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 74.122669][ T7007] RAX: ffffffffffffffda RBX: 00007ffca09bb710 RCX: 000000000045f4ba [ 74.130614][ T7007] RDX: 00000000004cafd1 RSI: 00000000004c16a5 RDI: 00000000004c1668 [ 74.138569][ T7007] RBP: 0000000000000000 R08: 00000000004cfa40 R09: 000000000000001c [ 74.146514][ T7007] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004185d0 [ 74.154470][ T7007] R13: 00007ffca09bb938 R14: 0000000000000000 R15: 0000000000000000 [ 74.164251][ T7007] Kernel Offset: disabled [ 74.168684][ T7007] Rebooting in 86400 seconds..