[ OK ] Started Regular background program processing daemon. Starting OpenBSD Secure Shell server... Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Reached target Timers. Starting System Logging Service... [ OK ] Started Permit User Sessions. [ OK ] Started System Logging Service. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.73' (ECDSA) to the list of known hosts. 2020/05/27 16:02:28 parsed 1 programs 2020/05/27 16:02:28 executed programs: 0 syzkaller login: [ 67.236198][ T29] audit: type=1400 audit(1590595348.473:8): avc: denied { execmem } for pid=7068 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 67.272543][ T7069] IPVS: ftp: loaded support on port[0] = 21 [ 67.415191][ T7069] chnl_net:caif_netlink_parms(): no params data found [ 67.469306][ T7069] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.477942][ T7069] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.485786][ T7069] device bridge_slave_0 entered promiscuous mode [ 67.495378][ T7069] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.503035][ T7069] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.511577][ T7069] device bridge_slave_1 entered promiscuous mode [ 67.532662][ T7069] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.544220][ T7069] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.566520][ T7069] team0: Port device team_slave_0 added [ 67.574583][ T7069] team0: Port device team_slave_1 added [ 67.592491][ T7069] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.599946][ T7069] 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. [ 67.627285][ T7069] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.640398][ T7069] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.647484][ T7069] 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. [ 67.673974][ T7069] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.739931][ T7069] device hsr_slave_0 entered promiscuous mode [ 67.777207][ T7069] device hsr_slave_1 entered promiscuous mode [ 67.901038][ T7069] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.960268][ T7069] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.009947][ T7069] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.069457][ T7069] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.123994][ T7069] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.131222][ T7069] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.139120][ T7069] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.146183][ T7069] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.194990][ T7069] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.209517][ T3419] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.219812][ T3419] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.228927][ T3419] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.237401][ T3419] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.251489][ T7069] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.262707][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.271987][ T23] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.279093][ T23] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.289957][ T3419] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.299444][ T3419] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.306471][ T3419] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.331400][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.341046][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.359162][ T7069] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.369549][ T7069] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.381677][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.390196][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.399396][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.408509][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.427783][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.435136][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.450225][ T7069] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.487707][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.496522][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.517610][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.525877][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.540422][ T7069] device veth0_vlan entered promiscuous mode [ 68.548379][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.557935][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.573752][ T7069] device veth1_vlan entered promiscuous mode [ 68.601089][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.610933][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.619830][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.629227][ T23] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.640802][ T7069] device veth0_macvtap entered promiscuous mode [ 68.651629][ T7069] device veth1_macvtap entered promiscuous mode [ 68.669214][ T7069] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.676592][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.686081][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.694254][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.703423][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.717508][ T7069] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.727953][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.736446][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/05/27 16:02:30 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 [ 69.815084][ T7282] ------------[ cut here ]------------ [ 69.820762][ T7282] WARNING: CPU: 1 PID: 7282 at kernel/cgroup/cgroup.c:3111 cgroup_apply_control_disable+0x404/0x4d0 [ 69.831516][ T7282] Kernel panic - not syncing: panic_on_warn set ... [ 69.838099][ T7282] CPU: 1 PID: 7282 Comm: syz-executor.0 Not tainted 5.7.0-rc7-syzkaller #0 [ 69.846674][ T7282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.856718][ T7282] Call Trace: [ 69.860008][ T7282] dump_stack+0x188/0x20d [ 69.864340][ T7282] ? cgroup_apply_control_disable+0x370/0x4d0 [ 69.870398][ T7282] panic+0x2e3/0x75c [ 69.874287][ T7282] ? add_taint.cold+0x16/0x16 [ 69.878962][ T7282] ? printk+0xba/0xed [ 69.882938][ T7282] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 69.888389][ T7282] ? __warn.cold+0x14/0x35 [ 69.892797][ T7282] ? __warn+0xd5/0x1c8 [ 69.896855][ T7282] ? cgroup_apply_control_disable+0x404/0x4d0 [ 69.902906][ T7282] __warn.cold+0x2f/0x35 [ 69.907132][ T7282] ? cgroup_apply_control_disable+0x404/0x4d0 [ 69.913193][ T7282] report_bug+0x27b/0x2f0 [ 69.917516][ T7282] do_error_trap+0x12b/0x220 [ 69.922089][ T7282] ? cgroup_apply_control_disable+0x404/0x4d0 [ 69.928141][ T7282] do_invalid_op+0x32/0x40 [ 69.932630][ T7282] ? cgroup_apply_control_disable+0x404/0x4d0 [ 69.938692][ T7282] invalid_op+0x23/0x30 [ 69.942836][ T7282] RIP: 0010:cgroup_apply_control_disable+0x404/0x4d0 [ 69.949488][ T7282] Code: ff ff ff e8 3e 9c 06 00 48 89 ef 41 ff d5 e9 1a ff ff ff e8 2e 9c 06 00 48 89 ef e8 b6 e5 fe ff e9 08 ff ff ff e8 1c 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 [ 69.969075][ T7282] RSP: 0018:ffffc90001d77a90 EFLAGS: 00010293 [ 69.975118][ T7282] RAX: ffff88809fe0c340 RBX: dffffc0000000000 RCX: ffffffff816ca03d [ 69.983071][ T7282] RDX: 0000000000000000 RSI: ffffffff816ca294 RDI: 0000000000000007 [ 69.991030][ T7282] RBP: ffff8880a8ba6400 R08: ffff88809fe0c340 R09: ffffed1015ce7104 [ 69.999968][ T7282] R10: ffff8880ae73881b R11: ffffed1015ce7103 R12: 0000000000000008 [ 70.007926][ T7282] R13: 0000000000000002 R14: ffffffff89a30680 R15: ffff88809d652000 [ 70.015912][ T7282] ? cgroup_apply_control_disable+0x1ad/0x4d0 [ 70.021960][ T7282] ? cgroup_apply_control_disable+0x404/0x4d0 [ 70.028022][ T7282] rebind_subsystems+0x3cd/0xb00 [ 70.032963][ T7282] ? cgroup_apply_control_disable+0x4d0/0x4d0 [ 70.039005][ T7282] ? css_populate_dir+0x288/0x450 [ 70.044010][ T7282] cgroup_setup_root+0x36a/0xa30 [ 70.049009][ T7282] ? rebind_subsystems+0xb00/0xb00 [ 70.054094][ T7282] ? init_cgroup_housekeeping+0x411/0x5a0 [ 70.059788][ T7282] cgroup1_get_tree+0xd69/0x13b6 [ 70.064741][ T7282] ? cgroup1_reconfigure+0x7d0/0x7d0 [ 70.070039][ T7282] ? security_capable+0x8e/0xc0 [ 70.074879][ T7282] vfs_get_tree+0x89/0x2f0 [ 70.079282][ T7282] do_mount+0x1306/0x1b30 [ 70.083596][ T7282] ? copy_mount_string+0x40/0x40 [ 70.088525][ T7282] ? _copy_from_user+0x13c/0x1a0 [ 70.093481][ T7282] __x64_sys_mount+0x18f/0x230 [ 70.098240][ T7282] do_syscall_64+0xf6/0x7d0 [ 70.102732][ T7282] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 70.108600][ T7282] RIP: 0033:0x45f47a [ 70.112471][ T7282] 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 [ 70.132063][ T7282] RSP: 002b:00007ffe5d7e2948 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 70.140508][ T7282] RAX: ffffffffffffffda RBX: 00007ffe5d7e29a0 RCX: 000000000045f47a [ 70.148462][ T7282] RDX: 00000000004caf91 RSI: 00000000004c1665 RDI: 00000000004c1628 [ 70.156410][ T7282] RBP: 0000000000000000 R08: 00000000004cfa00 R09: 000000000000001c [ 70.164361][ T7282] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000418590 [ 70.172348][ T7282] R13: 00007ffe5d7e2bc8 R14: 0000000000000000 R15: 0000000000000000 [ 70.181528][ T7282] Kernel Offset: disabled [ 70.185951][ T7282] Rebooting in 86400 seconds..