[PATCH AUTOSEL for 4.9 107/190] ipvs: explicitly forbid ipv6 service/dest creation if ipv6 mod is disabled

From: Paolo Abeni [ Upstream commit 1442f6f7c1b77de1c508318164a527e240c24a4d ] When creating a new ipvs service, ipv6 addresses are always accepted if CONFIG_IP_VS_IPV6 is enabled. On dest creation the address family is not explicitly checked. This allows the user-space to

[PATCH AUTOSEL for 4.9 107/190] ipvs: explicitly forbid ipv6 service/dest creation if ipv6 mod is disabled

From: Paolo Abeni [ Upstream commit 1442f6f7c1b77de1c508318164a527e240c24a4d ] When creating a new ipvs service, ipv6 addresses are always accepted if CONFIG_IP_VS_IPV6 is enabled. On dest creation the address family is not explicitly checked. This allows the user-space to configure ipvs