The grsecurity "RAP" patch set

The grsecurity developers have announced thefirst release of the "Reuse Attack Protector" (RAP) patch set, aimed atpreventing return-oriented programming and other attacks. "RAP isour patent-pending and best-in-breed defense mechanism against code reuseattacks. It is the result of years of research and development into ControlFlow Integrity (CFI) technologies by PaX. The version of RAP present in thetest patch released to the public today under the GPLv2 is nowfeature-complete."