void addReplyDouble(client *c, double d) {
    char dbuf[128], sbuf[128];
    int dlen, slen;
    if (isinf(d)) {
        /* Libc in odd systems (Hi Solaris!) will format infinite in a
         * different way, so better to handle it in an explicit way. */
        addReplyBulkCString(c, d > 0 ? "inf" : "-inf");
    } else {
        dlen = snprintf(dbuf,sizeof(dbuf),"%.17g",d);
        slen = snprintf(sbuf,sizeof(sbuf),"$%d\r\n%s\r\n",dlen,dbuf);
        addReplyString(c,sbuf,slen);
    }
}

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