linux/security/safesetid/Kconfig

config SECURITY_SAFESETID
        bool "Gate setid transitions to limit CAP_SET{U/G}ID capabilities"
        depends on SECURITY
        select SECURITYFS
        default n
        help
          SafeSetID is an LSM module that gates the setid family of syscalls to
          restrict UID/GID transitions from a given UID/GID to only those
          approved by a system-wide whitelist. These restrictions also prohibit
          the given UIDs/GIDs from obtaining auxiliary privileges associated
          with CAP_SET{U/G}ID, such as allowing a user to set up user namespace
          UID mappings.

          If you are unsure how to answer this question, answer N.