static int crl_crldp_check(X509 *x, X509_CRL *crl, int crl_score,
                           unsigned int *preasons)
{
    int i;
    if (crl->idp_flags & IDP_ONLYATTR)
        return 0;
    if (x->ex_flags & EXFLAG_CA) {
        if (crl->idp_flags & IDP_ONLYUSER)
            return 0;
    } else {
        if (crl->idp_flags & IDP_ONLYCA)
            return 0;
    }
    *preasons = crl->idp_reasons;
    for (i = 0; i < sk_DIST_POINT_num(x->crldp); i++) {
        DIST_POINT *dp = sk_DIST_POINT_value(x->crldp, i);
        if (crldp_check_crlissuer(dp, crl, crl_score)) {
            if (!crl->idp || idp_check_dp(dp->distpoint, crl->idp->distpoint)) {
                *preasons &= dp->dp_reasons;
                return 1;
            }
        }
    }
    if ((!crl->idp || !crl->idp->distpoint)
        && (crl_score & CRL_SCORE_ISSUER_NAME))
        return 1;
    return 0;
}

This label identifies security gaps where expected security features are missing or only partially implemented, reducing protection against unauthorized access or manipulation.