Linux Kernel ROP - Ropping your way to #

This article from CysecLabs starts a series explaining how return-oriented programming (ROP)can be used to exploit vulnerabilities in the kernel. "ROPtechniques take advantage of code misalignment to identify newgadgets. This is possible due to x86 language density, i.e., the x86instruction set is large enough (and instructions have different lengths),that almost any sequence of bytes can be interpreted as a validinstruction."