🛡️ Sentinel: [MEDIUM] Fix Unbounded Queue in AsyncLogger (DoS Risk)

src/AsyncLogger.h

@@ -12,7 +12,7 @@
 
 class AsyncLogger {
 public:
-    AsyncLogger() : exitFlag(false) {
+    AsyncLogger() : exitFlag(false), queueFullWarningShown(false) {
         worker = std::thread([this] {
             processQueue();
         });
@@ -32,17 +32,27 @@ class AsyncLogger {
     void log(const std::string& message) {
         {
             std::lock_guard<std::mutex> lock(queueMutex);
+            if (msgQueue.size() >= MAX_QUEUE_SIZE) {
+                if (!queueFullWarningShown) {
+                    std::cerr << "[Security] AsyncLogger queue full (" << MAX_QUEUE_SIZE
+                              << " messages). Dropping logs to prevent DoS.\n";
+                    queueFullWarningShown = true;
+                }
+                return;
+            }
             msgQueue.push(message);
         }
         cv.notify_one();
     }
 
 private:
+    const size_t MAX_QUEUE_SIZE = 10000;
     std::thread worker;
     std::queue<std::string> msgQueue;
     std::mutex queueMutex;
     std::condition_variable cv;
     bool exitFlag;
+    bool queueFullWarningShown;
 
     void processQueue() {
         while (true) {
@@ -63,6 +73,11 @@ class AsyncLogger {
                 std::cout << msg << std::flush;
                 lock.lock();
             }
+
+            // Reset warning flag when queue is empty
+            if (msgQueue.empty()) {
+                queueFullWarningShown = false;
+            }
         }
     }
 };

src/main.cpp

@@ -187,10 +187,6 @@ class RacingEngine {
     // Async Logger
     AsyncLogger logger;
 
-    // UX State Tracking
-    float currentFPS = 0.0f;
-    float frameTimeMs = 0.0f;
-
     void updateWindowTitle() {
         glm::vec3 pos = camera.getPosition();
         char title[512];