static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
{
    long ret;

    if (b->next_bio == NULL)
        return (0);
    switch (cmd) {
    case BIO_CTRL_DUP:
        ret = 0L;
        break;
    default:
        ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
        break;
    }
    return (ret);
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.