default or selected kernelversion does not have config value CONFIG_CC_STACKPROTECTOR_AUTO.
Result is shown for kernelversion 6.4.14

Automatic

configname: CONFIG_CC_STACKPROTECTOR_AUTO

Stack Protector buffer overflow detection
└─>Automatic
In linux kernel since version 4.9.8 (release Date: 2017-02-04)  
If the compiler supports it, the best available stack-protector
option will be chosen.