Could you please add following commit into libsepol in RHEL-7.6?
Author: Stephen Smalley <email@example.com>
Date: Thu Dec 1 11:08:06 2016 -0500
libsepol: Define extended_socket_class policy capability
Define the extended_socket_class policy capability used to enable
the use of separate socket security classes for all network address
families rather than the generic socket class. This also enables
separate security classes for ICMP and SCTP sockets, which were previously
mapped to the rawip_socket class.
The legacy redhat1 policy capability that was only ever used in testing
within Fedora for ptrace_child is reclaimed for this purpose; as far as
I can tell, this policy capability is not enabled in any supported distro
Signed-off-by: Stephen Smalley <firstname.lastname@example.org>
It's blocking selinux-policy build because of backports related to extended socket class.
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.