C++ 变量周围的堆栈已损坏。(D3D9)

我知道有很多类似的问题，但我看不到这个特定问题的任何问题。代码在发布模式下运行良好，但是当我在调试模式下编译时，会给我"变量'索引'周围的堆栈已损坏"。我该如何解决它？提前感谢！

这是有问题的代码：

// Create Saturn rings
// create the vertices using the CUSTOMVERTEX struct
#define num_vertices 1000
CUSTOMVERTEX vertices[num_vertices];
nSections = 150;
float outerRadius = (80000000 + escalaa[6]) / escalaa[6];
float innerRadius = (7000000 + escalaa[6]) / escalaa[6];
float endAngle = ToRadians(360);
float beginAngle = ToRadians(0);
float angle = endAngle - beginAngle;
for (unsigned int i = 0; i <= nSections; i+=2)
{
    float t = (float)i / (float)nSections;
    float theta = beginAngle + t * angle;
    float s = (float)sin(theta);
    float c = (float)cos(theta);
    vertices[i] = { c * innerRadius, 0, -1 * (s * innerRadius), { 0.0f, 1.0f, 0.0f }, 4, 2 };
    vertices[i + 1] = { c * outerRadius, 0, -1 * (s * outerRadius), { 0.0f, 1.0f, 0.0f }, 2, 4 };
}

// create a vertex buffer interface called v_buffer
d3ddev->CreateVertexBuffer(num_vertices* sizeof(CUSTOMVERTEX),
    0,
    CUSTOMFVF,
    D3DPOOL_MANAGED,
    &v_buffer,
    NULL);
VOID* pVoid;    // a void pointer
// lock v_buffer and load the vertices into it
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, vertices, sizeof(vertices));
v_buffer->Unlock();
// create the indices using an int array
short indices[num_vertices];
int aa=0;
for (int n = 0; n < num_vertices; n += 6)
{
    indices[n] = aa;
    indices[n + 1] = aa + 1;
    indices[n + 2] = aa + 2;
    indices[n + 3] = aa + 2;
    indices[n + 4] = aa + 1;
    indices[n + 5] = aa + 3;
    aa += 2;
}
// create an index buffer interface called i_buffer
d3ddev->CreateIndexBuffer(3 * num_vertices* sizeof(short),
    0,
    D3DFMT_INDEX16,
    D3DPOOL_MANAGED,
    &i_buffer,
    NULL);
// lock i_buffer and load the indices into it
i_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, indices, sizeof(indices));
i_buffer->Unlock();