rhel-7.2 ships libnl3 based on version 3.2.21 from January 2013.
In the meantime there were many upstream changes and improvements.
It makes sense to rebase the library to a newer version to provide users the added functionality, which especially includes support for new netlink attributes.
A major new feature is symbol versioning, which has advantages when we need to backport new API in rhel-7.4 or later.
libnl3 is anyway supposed not to break ABI and API, so hopefully this will be painless.
This is also a requirement for Mesos 0.26's network isolator. I'm using mesos on RHEL7 clusters currently sans the network isolator. The ip-per-task support it allows is something we want to use for production, even if it means waiting for 7.3.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
sorry for the late reply. Doctext looks good to me.