IpAddr2 should it validate label length?

setting webservinterface1 as label of an IpAddr2 ends with the following:

ip -f inet addr add 10.255.0.91/24 dev eth0 label eth0:webservinterface1
RTNETLINK answers: Numerical result out of range

Is that something that needs to be validated?

Start by locating the IpAddr2 resource agent and the code that handles interface labels. Reproduce the shown ip command with the webservinterface1 label, then determine whether an overlong label is rejected before execution; done means the behavior is validated consistently.

Written by the indexing model from the issue text.