[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.29' (ECDSA) to the list of known hosts. 2020/06/02 02:24:53 parsed 1 programs 2020/06/02 02:24:53 executed programs: 0 syzkaller login: [ 101.779267][ T6845] IPVS: ftp: loaded support on port[0] = 21 [ 101.873598][ T6845] chnl_net:caif_netlink_parms(): no params data found [ 101.929975][ T6845] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.941713][ T6845] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.951348][ T6845] device bridge_slave_0 entered promiscuous mode [ 101.962853][ T6845] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.970910][ T6845] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.980121][ T6845] device bridge_slave_1 entered promiscuous mode [ 102.001321][ T6845] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 102.012162][ T6845] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 102.035334][ T6845] team0: Port device team_slave_0 added [ 102.044184][ T6845] team0: Port device team_slave_1 added [ 102.063362][ T6845] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 102.070513][ T6845] 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. [ 102.096692][ T6845] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 102.109745][ T6845] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 102.116698][ T6845] 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. [ 102.142705][ T6845] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 102.221179][ T6845] device hsr_slave_0 entered promiscuous mode [ 102.268140][ T6845] device hsr_slave_1 entered promiscuous mode [ 102.400261][ T6845] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 102.440582][ T6845] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 102.510343][ T6845] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 102.570561][ T6845] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 102.644850][ T6845] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.652162][ T6845] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.660227][ T6845] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.667360][ T6845] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.715365][ T6845] 8021q: adding VLAN 0 to HW filter on device bond0 [ 102.729880][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 102.741471][ T2479] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.750176][ T2479] bridge0: port 2(bridge_slave_1) entered disabled state [ 102.758790][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 102.772809][ T6845] 8021q: adding VLAN 0 to HW filter on device team0 [ 102.783348][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 102.793014][ T2608] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.800139][ T2608] bridge0: port 1(bridge_slave_0) entered forwarding state [ 102.813311][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 102.822168][ T2479] bridge0: port 2(bridge_slave_1) entered blocking state [ 102.829293][ T2479] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.849517][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 102.868263][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 102.876003][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 102.885712][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 102.894333][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 102.903125][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 102.911897][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 102.920432][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 102.930538][ T6845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 102.954390][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 102.962791][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 102.976933][ T6845] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.996470][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 103.005224][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 103.024863][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 103.033144][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 103.042592][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 103.050700][ T2479] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 103.062533][ T6845] device veth0_vlan entered promiscuous mode [ 103.073893][ T6845] device veth1_vlan entered promiscuous mode [ 103.096129][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 103.104919][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 103.114443][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 103.123249][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 103.134031][ T6845] device veth0_macvtap entered promiscuous mode [ 103.144842][ T6845] device veth1_macvtap entered promiscuous mode [ 103.162713][ T6845] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 103.171498][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 103.181135][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 103.190011][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 103.198835][ T2608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 103.211363][ T6845] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 103.219273][ T2614] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 103.228903][ T2614] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 103.968585][ T6845] syz-executor.0 (6845) used greatest stack depth: 19520 bytes left 2020/06/02 02:24:55 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 [ 104.110719][ T7058] ------------[ cut here ]------------ [ 104.116371][ T7058] WARNING: CPU: 0 PID: 7058 at kernel/cgroup/cgroup.c:3104 cgroup_apply_control_disable+0x404/0x4d0 [ 104.127135][ T7058] Kernel panic - not syncing: panic_on_warn set ... [ 104.134090][ T7058] CPU: 0 PID: 7058 Comm: syz-executor.0 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0 [ 104.143888][ T7058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.154746][ T7058] Call Trace: [ 104.158053][ T7058] dump_stack+0x18f/0x20d [ 104.162411][ T7058] ? cgroup_apply_control_disable+0x390/0x4d0 [ 104.168774][ T7058] panic+0x2e3/0x75c [ 104.172665][ T7058] ? __warn_printk+0xf3/0xf3 [ 104.177251][ T7058] ? printk+0xba/0xed [ 104.181230][ T7058] ? log_store.cold+0x16/0x16 [ 104.185923][ T7058] ? __warn.cold+0x14/0x3a [ 104.190323][ T7058] ? __warn+0xd6/0x1b2 [ 104.194409][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.200477][ T7058] __warn.cold+0x2f/0x3a [ 104.204714][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.210787][ T7058] report_bug+0x27b/0x2f0 [ 104.215296][ T7058] do_error_trap+0x153/0x2b0 [ 104.219887][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.225957][ T7058] exc_invalid_op+0x37/0x50 [ 104.230470][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.236690][ T7058] asm_exc_invalid_op+0x12/0x20 [ 104.241531][ T7058] RIP: 0010:cgroup_apply_control_disable+0x404/0x4d0 [ 104.248185][ T7058] Code: ff ff ff e8 4e 93 06 00 48 89 ef 41 ff d5 e9 1a ff ff ff e8 3e 93 06 00 48 89 ef e8 46 e0 fe ff e9 08 ff ff ff e8 2c 93 06 00 <0f> 0b e9 ab fd ff ff 48 83 c4 30 5b 5d 41 5c 41 5d 41 5e 41 5f e9 [ 104.267772][ T7058] RSP: 0018:ffffc900019e7b28 EFLAGS: 00010293 [ 104.273813][ T7058] RAX: ffff888093c484c0 RBX: dffffc0000000000 RCX: ffffffff816c661d [ 104.281766][ T7058] RDX: 0000000000000000 RSI: ffffffff816c6874 RDI: 0000000000000007 [ 104.289714][ T7058] RBP: ffff8880a938e400 R08: ffff888093c484c0 R09: ffffed1015cc719c [ 104.297686][ T7058] R10: ffff8880ae638cdb R11: ffffed1015cc719b R12: 0000000000000008 [ 104.309059][ T7058] R13: 0000000000000002 R14: ffffffff89c32440 R15: ffff88808f198000 [ 104.317039][ T7058] ? cgroup_apply_control_disable+0x1ad/0x4d0 [ 104.323089][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.329150][ T7058] ? cgroup_apply_control_disable+0x404/0x4d0 [ 104.335194][ T7058] rebind_subsystems+0x3cc/0xb10 [ 104.340116][ T7058] ? cgroup_apply_control_disable+0x4d0/0x4d0 [ 104.346182][ T7058] ? css_populate_dir+0x288/0x450 [ 104.351195][ T7058] cgroup_setup_root+0x36a/0xa20 [ 104.356370][ T7058] ? rebind_subsystems+0xb10/0xb10 [ 104.361470][ T7058] ? init_cgroup_housekeeping+0x3f0/0x580 [ 104.367169][ T7058] cgroup1_get_tree+0xce3/0x12ad [ 104.372100][ T7058] vfs_get_tree+0x89/0x2f0 [ 104.376492][ T7058] do_mount+0x12f9/0x1b50 [ 104.380813][ T7058] ? copy_mount_string+0x40/0x40 [ 104.385737][ T7058] ? copy_user_enhanced_fast_string+0xe/0x30 [ 104.391697][ T7058] ? _copy_from_user+0x13c/0x1a0 [ 104.396710][ T7058] __x64_sys_mount+0x18f/0x230 [ 104.401462][ T7058] do_syscall_64+0x60/0xe0 [ 104.405855][ T7058] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 104.411733][ T7058] RIP: 0033:0x45f4ba [ 104.415614][ T7058] 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 [ 104.435206][ T7058] RSP: 002b:00007ffd40ac51f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 104.443610][ T7058] RAX: ffffffffffffffda RBX: 00007ffd40ac5250 RCX: 000000000045f4ba [ 104.451563][ T7058] RDX: 00000000004cafd1 RSI: 00000000004c16a5 RDI: 00000000004c1668 [ 104.459516][ T7058] RBP: 0000000000000000 R08: 00000000004cfa40 R09: 000000000000001c [ 104.467470][ T7058] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004185d0 [ 104.475419][ T7058] R13: 00007ffd40ac5478 R14: 0000000000000000 R15: 0000000000000000 [ 104.485157][ T7058] Kernel Offset: disabled [ 104.489560][ T7058] Rebooting in 86400 seconds..