[ 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 '10.128.0.96' (ECDSA) to the list of known hosts. syzkaller login: [ 52.834276][ T8384] IPVS: ftp: loaded support on port[0] = 21 [ 52.862027][ T8384] chnl_net:caif_netlink_parms(): no params data found [ 52.880970][ T8384] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.888103][ T8384] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.895690][ T8384] device bridge_slave_0 entered promiscuous mode [ 52.902576][ T8384] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.909659][ T8384] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.917070][ T8384] device bridge_slave_1 entered promiscuous mode [ 52.927474][ T8384] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.937206][ T8384] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.950235][ T8384] team0: Port device team_slave_0 added [ 52.956540][ T8384] team0: Port device team_slave_1 added [ 52.965796][ T8384] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.972733][ T8384] 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. [ 52.998796][ T8384] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.009984][ T8384] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.017002][ T8384] 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. [ 53.042897][ T8384] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.059226][ T8384] device hsr_slave_0 entered promiscuous mode [ 53.065547][ T8384] device hsr_slave_1 entered promiscuous mode [ 53.094992][ T8384] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.102868][ T8384] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.110779][ T8384] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.118347][ T8384] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.129846][ T8384] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.136942][ T8384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.144190][ T8384] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.151194][ T8384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.169821][ T8384] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.178619][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.186610][ T19] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.194170][ T19] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.201610][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.210747][ T8384] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.219000][ T8590] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.227432][ T8590] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.234468][ T8590] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.243175][ T4811] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.251624][ T4811] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.258653][ T4811] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.271434][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.279660][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.290949][ T8384] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.301544][ T8384] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.312405][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.320344][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.328521][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.336758][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.349139][ T8384] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.356693][ T8590] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.364194][ T8590] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.380836][ T8384] device veth0_vlan entered promiscuous mode [ 53.387665][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 53.396188][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 53.404455][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 53.411797][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 53.421324][ T8384] device veth1_vlan entered promiscuous mode [ 53.433062][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 53.440927][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 53.448992][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 53.458330][ T8384] device veth0_macvtap entered promiscuous mode [ 53.466011][ T8384] device veth1_macvtap entered promiscuous mode [ 53.476936][ T8384] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 53.484459][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 53.492992][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 53.502376][ T8384] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 53.509984][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 53.519584][ T8384] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.528461][ T8384] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.537378][ T8384] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 53.546188][ T8384] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 53.565707][ T8593] device vlan2 entered promiscuous mode [ 53.571345][ T8593] device batadv0 entered promiscuous mode [ 53.577532][ T8593] device batadv0 left promiscuous mode executing program [ 58.957193][ T8602] device vlan2 entered promiscuous mode [ 58.962813][ T8602] device batadv0 entered promiscuous mode [ 58.969233][ T8602] device batadv0 left promiscuous mode [ 60.105739][ T8384] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 66.402335][ T8384] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888114536e80 (size 64): comm "syz-executor047", pid 8593, jiffies 4294942628 (age 12.900s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 08 00 00 00 01 02 0f 00 ................ backtrace: [] garp_request_join+0x138/0x220 [] vlan_gvrp_request_join+0x96/0xa0 [] vlan_dev_open+0x1f9/0x330 [] __dev_open+0x175/0x260 [] __dev_change_flags+0x2fa/0x390 [] rtnl_configure_link+0x64/0x130 [] __rtnl_newlink+0xa74/0xdb0 [] rtnl_newlink+0x49/0x70 [] rtnetlink_rcv_msg+0x1fc/0x520 [] netlink_rcv_skb+0x87/0x1d0 [] netlink_unicast+0x392/0x4c0 [] netlink_sendmsg+0x368/0x6a0 [] sock_sendmsg+0x56/0x80 [] ____sys_sendmsg+0x36c/0x390 [] ___sys_sendmsg+0x8b/0xd0 [] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff888112ba3f40 (size 64): comm "syz-executor047", pid 8602, jiffies 4294943167 (age 7.510s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 08 00 00 00 01 02 0f 00 ................ backtrace: [] garp_request_join+0x138/0x220 [] vlan_gvrp_request_join+0x96/0xa0 [] vlan_dev_open+0x1f9/0x330 [] __dev_open+0x175/0x260 [] __dev_change_flags+0x2fa/0x390 [] rtnl_configure_link+0x64/0x130 [] __rtnl_newlink+0xa74/0xdb0 [] rtnl_newlink+0x49/0x70 [] rtnetlink_rcv_msg+0x1fc/0x520 [] netlink_rcv_skb+0x87/0x1d0 [] netlink_unicast+0x392/0x4c0 [] netlink_sendmsg+0x368/0x6a0 [] sock_sendmsg+0x56/0x80 [] ____sys_sendmsg+0x36c/0x390 [] ___sys_sendmsg+0x8b/0xd0 [] __sys_sendmsg+0x88/0x100