Is there any interest ( ie. would people be willing to help ) get a
grsec and/or otherwise hardened kernel for CentOS-6/7 ? I dont think its
worth putting in the effort into CentOS-5 at this point.
I'm interested in this. We've been building one for EL6. Because of the way grsec uses newer gcc macros, it involves building with a newer GCC than ships with EL6 -- we did this by using the CERN devtoolset. Our specs and build process are here https://github.com/el-grsecurity/specfiles -- I haven't built and signed the latest kernel there for public consumption, but the spec is available at least.