Heap buffer overflow in allocated array - c

Question

So i have this program that has a structure and an array. The array is conj_jogos which is an array of a structure called jogo with MAX_SIZE (MAX_SIZE being 5).
Structure:
typedef struct
{
int id;
char equipas[2][1024];
int pont[2];
char nome[MAX_CHARS];
} jogo;
So to create this array i allocated memory in my main function like this:
int main()
{
char nome_jg[MAX_CHARS], team1[MAX_CHARS], team2[MAX_CHARS];
int score1;
int score2;
int i;
conj_jogos = (jogo*)calloc(MAX_SIZE,sizeof(jogo));
while ((c = getchar()) != x)
scanf("%1023[^:\n]:%1023[^:\n]:%1023[^:\n]:%d:%d",nome_jg,team1,team2,&score1,&score2);
remove_esp(nome_jg); /*removes the 1st char if its a space*/
a(nome_jg,team1,team2,score1,score2);
ident++;
}
free(conj_jogos);
return 0;
}
The problem is that valgrind is saying that i have a heap overflow on the "a" function and i dont know why so if someone can help i would appreciate it a lot.
Program:
#include<stdlib.h>
#include<stdio.h>
#include <string.h>
#define MAX_CHARS 1024 /* Max chars for a word*/
#define MAX_SIZE 5 /*Max size for an array*/
jogo *conj_jogos; /*array that saves the jogos*/
static int size_until2 = 0; /*count the size of conj_jogos*/
void a(char nome_jg[],char team1[],char team2[],int score1,int score2)
{
if (jogo_in(nome_jg) == 1) //confirms if the string nome_jg is in conj_jogos
{
printf("%d Jogo existente.\n",line);
line++;
}
else if ((nome_in_sis(team1) == 0) || (nome_in_sis(team2) == 0)) //confirms if the strings team1 or team2 are in sistem_eq
{
printf("%d Equipa inexistente.\n",line);
line++;
}
else
{
if (size_until2 < MAX_SIZE)
{
conj_jogos[size_until2] = cria_jogo(nome_jg,team1,team2,score1,score2);
size_until2++;
line++;
}
else
{
jogo *temp;
size_until2++;
temp = realloc(conj_jogos,sizeof(jogo)*(size_until2+1));
free(conj_jogos);
conj_jogos = temp;
conj_jogos[size_until2] = cria_jogo(nome_jg,team1,team2,score1,score2);
size_until2++;
line++;
free(temp);
}
}
}

Answer 1

I cannot re-run the code because so much relevant functions are not included in your code. But I would try :
conj_jogos = realloc(conj_jogos,sizeof(jogo)*(size_until2+1));
instead of :
temp = realloc(conj_jogos,sizeof(jogo)*(size_until2+1));
And you may also try:
*(conj_jogos + (size_until2 * sizeof(jogo))) = cria_jogo(nome_jg,team1,team2,score1,score2);
size_until2++;
Instead of:
conj_jogos[size_until2] = cria_jogo(nome_jg,team1,team2,score1,score2);
size_until2++;