[Q]Setting selinux to permissive without tripping the dreaded knox flag topic

I have rooted my new Sprint Galaxy S5 and have quarantined all the Knox apps without tripping the knox flag. I have researched setting selinux to permissive on the Sprint Galaxy S5 with the stock kernel and there seems to be no way of doing it short of flashing a different kernel.

Can a selinux permissive kernel be flashed to a stock 4.4.2 rom without tripping the knox flag?