KASan: runtime memory debugger

modulename: kasan_init.ko

and/or

common.ko

configname: CONFIG_KASAN

Linux Kernel Configuration
└─>Memory Debugging
└─>KASan: runtime memory debugger
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Enables kernel address sanitizer - runtime memory debugger,
designed to find out-of-bounds accesses and use-after-free bugs.
This is strictly a debugging feature and it requires a gcc version
of 4.9.2 or later. Detection of out of bounds accesses to stack or
global variables requires gcc 5.0 or later.
This feature consumes about 1/8 of available memory and brings about
~x3 performance slowdown.
For better error detection enable CONFIG_STACKTRACE.

source code: