Just install selinux latest version to fix it:
sudo yum install -y http://mirror.centos.org/centos/7/extras/x86_64/Packages/container-selinux-2.107-3.el7.noarch.rpm
More versions at http://mirror.centos.org/centos/7/extras/x86_64/Packages/
Older versions of 2.9: http://ftp.riken.jp/Linux/cern/centos/7/extras/x86_64/Packages/