Submeter #558121: scipopt scip v.9.2.1 Missing Release of File Descriptor or Handle after Effective Lif

A potential missing release of the file Scriptor or handle after the effective lifetime is in examples/LOP/src/genRandomLOPInstance.c#L106

here is the source code starting from line 106.

```c
file = fopen(argv[1], "w"); // this variable is not been released.
if ( file == NULL )
{
printf("Could not open file %s.\n", argv[1]);
return 1;
}

/* write comment line and size*/
fprintf(file, "Randomly generated LOP instance.\n");
fprintf(file, "%d\n", n);
for (i = 0; i < n; ++i)
{
for (j = 0; j < n; ++j)
fprintf(file, "%d ", getRandomInt(0, d, &seed));
fprintf(file, "\n");
}

printf("Wrote random LOP instance to %s\n", argv[1]);
printf("Size: %d\n", n);
printf("Entries: {0, ..., %d}\n", d);

return 0;
}
```

the developer has verified the issue.

• Fonte: ⚠️ https://github.com/scipopt/scip/issues/130
• Utilizador: micromilo (UID 84159)
• Submissão: 15/04/2025 09h37 (há 1 Ano)
• Moderação: 26/04/2025 10h27 (11 days later)
• Estado: Aceite
• Entrada VulDB: 306337 [scipopt scip até 9.2.1 File Descriptor genRandomLOPInstance.c main Ficheiro Negação de Serviço]
• Pontos: 20