r0 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFCONF(r0, 0x8912, &(0x7f00000000c0)=@req={0x28, &(0x7f0000000080)={'veth0_vlan\x00', @ifru_settings={0x0, 0x0, @fr_pvc_info=0x0}}})