最后没有多维数组不会工作

Question

我已经写了以下功能：

/*!
 * @brief Loads the filecontent from the whitelist into an array of structs
 * @param char *conffile - The whitelist file
 * @param struct whitelist *confstruct - The array of structs
 * @param int conflines - How many lines are in the given file
 * @return int - 0 on succes, 1 on error
 */

int load_whitelist(char *conffile, struct s_whitelist *confstruct, int conflines)
{
    FILE *infile;

    if((infile = fopen(conffile, "r")) == NULL)                             // Try to open given file
        {
            fprintf(stderr, "File error!");                                     // Error on failure        
            return 1;                           
        }

    char line[256];
    char *buffer;
    char **linebuffer;

    int i = 0;

    while(i <= conflines)                                                   // As long as there are lines in the file (except comments starting with #) 
        {
            confstruct[i].name = malloc(256);                                   // Allocate memory for the regarding part of the struct
            confstruct[i].gateway = malloc(256);
            confstruct[i].user = malloc(256);
            confstruct[i].pass = malloc(256);
            confstruct[i].cert = malloc(256);

            while(fgets(line, sizeof(line), infile) != NULL)                    // Get lines until the end of the file is reached
                {
                    if(line[0] != '#')                                              // If a line doesn't contain a '#'
                        {
                            linebuffer = malloc(count_string(line," ")+1);              // Allocate memory in the linebuffer for every found blank
                            for(int y = 0; y <= count_string(line," "); y++)            // For every found blank
                                {
                                    linebuffer[y] = malloc(256);                            // allocate memory in the array
                                }

                            printf("%i| %s\n",count_string(line," "),line);
                        }
                }
            i++;
        }

    for(int y = 0; y <= count_string(line," "); y++)
        {
            free(linebuffer[y]);
        }
    free(linebuffer);  // <---- That's the culprint
    return 0;
}

Everthing工作，除了最后一个免费（linebuffer）。即使我在示例中找到了这种方式，我也尝试过不同的位置，不同类型的指针。那么，这次有人知道我做错了什么吗？ 非常感谢您的帮助！