kernelconfig_penguin

Require a valid signature in kexec_file_load() syscall

configname: CONFIG_KEXEC_SIG_FORCE

Linux Kernel Configuration
└─> Processor type and features
└─> Require a valid signature in kexec_file_load() syscall

In linux kernel since version 5.1 (release Date: 2019-05-05)  

This option makes kernel signature verification mandatory for
the kexec_file_load() syscall.