The software requirements for utilizing Intel Memory Protection Extensions (MPX) on Linux include the Linux 3.19 kernel (but Linux 4.1 or newer is recommended), GCC 5.0 or newer, Glibc 2.20 or newer, Binutils 2.24 or newer, and GDB 7.9 or newer. On the hardware side, MPX support is present with latest-generation Skylake processors and newer. This combination of software and hardware allows for checking pointer references to look for buffer overflows.
If you are interested in how to build software with the MPX instruction support, debugging MPX exceptions with GDB, and more, you can read this week's post by Intel's Dave Hasen. Visit 01.org.