Samba upstream reports that:
Samba versions 4.0.0 and above have a flaw in the smbcacls command. If
smbcacls is used with the "-C|--chown name" or "-G|--chgrp name"
command options it will remove the existing ACL on the object being
modified, leaving the file or directory unprotected.
This issue can be worked around by using chown or similar tools to modify owners on files and directories.
Upstream bug: https://bugzilla.samba.org/show_bug.cgi?id=10327
Created samba tracking bugs for this issue:
Affects: fedora-all [bug 1075429]
samba-4.1.6-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
Red Hat would like to thank the Samba project for reporting this issue.
Upstream acknowledges Noel Power as the original reporter.
samba-4.0.16-1.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products:
Red Hat Enterprise Linux 6
Via RHSA-2014:0383 https://rhn.redhat.com/errata/RHSA-2014-0383.html