malloc:释放对象的校验和不正确

下面是进行合并排序的函数。但我在执行时遇到了错误。已分配内存（aux）每次在函数

merge

中都被释放，为什么释放后会对其进行修改

---

malloc（（hi-lo+1）*sizeof（int））

为索引从0到

hi-lo

的元素分配空间，但是

对于（int k=lo；kaux

数组未正确初始化：

对于（int k=lo；k=n|aux[i]
a.out(65287,0x1112bedc0) malloc: Incorrect checksum for freed object
0x7ff9a4c05888: probably modified after being freed. Corrupt value:
0xb00000003 a.out(65287,0x1112bedc0) malloc: *** set a breakpoint in
malloc_error_break to debug Abort trap: 6

void merge(int arr[], int lo, int mid, int hi) {
    int i = lo; 
    int j = mid + 1;
    int *aux = (int *)malloc((hi - lo + 1) * sizeof(int));
    for (int k = lo; k <= hi; k++) {
        aux[k] = arr[k];
    }   
    for (int k = lo; k <= hi; k++) {
        if (i > mid)
            arr[k] = aux[j++];
        else if (j > hi)
            arr[k] = aux[i++];
        else if (aux[i] > aux[j])
            arr[k] = aux[j++];
        else
            arr[k] = aux[i++];
    } 
    free(aux);
}

void mergesort1(int arr[], int lo, int hi) {
    if (lo >= hi)
        return;
    int mid = lo + (hi - lo) / 2;
    mergesort1(arr, lo, mid);
    mergesort1(arr, mid + 1, hi);
    merge(arr, lo, mid, hi);
}

mergesort1(arr, 0, 9);

    for (int k = lo; k <= hi; k++) {
        aux[k -lo] = arr[k];
    }