为什么x64运行不了

int fun01()
{
    int* p = (int*)malloc(sizeof(int) * 10);
    return p;
}
int main()
{
    int* p = NULL;
    p = fun01();
    for (int i = 0; i < 10; i++)
    {
        p[i] = i;
        printf("%d\n", p[i]);
    }
    free(p);
    return 0;
}

fun01的返回类型应该是int*，因为p是指针