c - fclose() causes a crash

I have a problem in this code, it executes successfully until reach fclose(fp) statement, it crashes.

void read_file(const char *filename) {
    FILE *fp;
    int num, i=0;

    fp = fopen("numbers.txt","r");

    if (fp == NULL) {
        printf("Couldn't open numbers.txt for reading.\n");
        exit(0);
    }

    int *random = malloc(sizeof(int));
    if (random == NULL) {
        printf("Error allocating memory!\n");
        return;
    }
    while (fscanf(fp, "%d", &num) > 0) {
        random[i] = num;
        i++;
    }
    printf("\nTEST Before close");

    fclose(fp);

    printf("\nTEST After fclose");
}

The sentence TEST Before close is printed successfully and then the console is stopped printing so TEST After fclose doesn't printed and the cursor start blinking !

Any help? Thanks in advance.