CONFIG_HAVE_ARCH_KASAN_SW_TAGS (not configurable)

configname: CONFIG_HAVE_ARCH_KASAN_SW_TAGS

Linux Kernel Configuration
└─>Kernel hacking
└─>Memory Debugging
└─>HAVE_ARCH_KASAN_SW_TAGS
In linux kernel since version 5 (release Date: 2019-03-03)  
is selected by
CONFIG_KASAN