Debug slab memory allocations

configname: CONFIG_DEBUG_SLAB

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>Debug slab memory allocations
In linux kernel since version 2.6.12  
Say Y here to have the kernel do limited verification on memory
allocation as well as poisoning memory on free to catch use of freed
memory. This can make kmalloc/kfree-intensive workloads much slower.

depends
CONFIG_DEBUG_KERNEL
CONFIG_SLAB

is selected by
CONFIG_KASAN