https://bugzilla.redhat.com/show_bug.cgi?id=1098120
--- Comment #13 from Marek Goldmann mgoldman@redhat.com --- (In reply to Daniel Walsh from comment #12)
I have pushed an updated libselinux for rhel6.6 into
http://people.redhat.com/dwalsh/SELinux/RHEL6
If you install this version of libselinux into your rhel6 base image, I believe the useradd/groupadd problems will go away. We plan on adding this version to any docker images for rhel6 that we ship even prior to the release of rhel6.6.
This fixes the issue for me.