PER_CLEAR_ON_SETID
bprm->per_clear |= PER_CLEAR_ON_SETID;
bprm->per_clear |= PER_CLEAR_ON_SETID;
bprm->per_clear |= PER_CLEAR_ON_SETID;
bprm->per_clear |= PER_CLEAR_ON_SETID;
bprm->per_clear |= PER_CLEAR_ON_SETID;
bprm->per_clear |= PER_CLEAR_ON_SETID;