CONFIG_OOM_REBOOT is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_OOM_REBOOT.
Result is shown for kernelversion 6.2.5

Enable reboot at out of memory

configname: CONFIG_OOM_REBOOT

Linux Kernel Configuration
└─>General setup
└─>Enable reboot at out of memory
In linux kernel since version 2.6.25 (release Date: 2008-04-16)