挂接函数时出错，"Stack around the variable x was corrupted."？C++

Question

我试图在x64应用程序上挂钩一个函数。下面是我的代码:

int __stdcall nRecv(SOCKET s, char* buf, int len, int flags)
{
    Log("Receving!");
    return 0;
}
BOOL HookFunction(LPCWSTR moduleName, LPCSTR funcName, LPVOID pDestination)
{
    BYTE stub[6] = { 0xe9, 0x00, 0x00, 0x00, 0x00, 0xc3 };
    DWORD pProtection;
    DWORD pSource = (DWORD)GetProcAddress(GetModuleHandle(moduleName), funcName);

    LPVOID pTrampoline = VirtualAlloc(NULL, 6 + sizeof(stub), MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
    VirtualProtect((LPVOID)pSource, 6, PAGE_EXECUTE_READWRITE, &pProtection);

    CopyMemory(stub + 1, &pDestination, 4);
    CopyMemory((LPVOID)((DWORD_PTR)pTrampoline), &pSource, 6);
    CopyMemory((LPVOID)((DWORD_PTR)pTrampoline + 6), stub, sizeof(stub));

    CopyMemory(stub + 1, &pTrampoline, 4);
    CopyMemory(&pSource, &stub, sizeof(stub));

    VirtualProtect((LPVOID)pSource, 6, pProtection, NULL);
    return TRUE;
}
BOOL recvHook = HookFunction(L"ws2_32.dll", "recv", &nRecv);

我附加了一个调试器并发现了一个错误:

我真的找不到发生这种情况的确切原因，我做错了什么吗?谢谢!

Answer 1

这一行将6字节的内存复制到一个4字节的变量

CopyMemory(&pSource, &stub, sizeof(stub));