Bluetooth: Do not assert on remote data.

Otherwise, a malicious device could crash our application.

Change-Id: I427eb1ff88b08710d5c74230f5877b0c59b6fb0f
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/bluetooth/qlowenergycontroller_bluez.cpp b/src/bluetooth/qlowenergycontroller_bluez.cpp
index 1e0f726e..b37ae4ad 100644
--- a/src/bluetooth/qlowenergycontroller_bluez.cpp
+++ b/src/bluetooth/qlowenergycontroller_bluez.cpp
@@ -391,7 +391,12 @@ void QLowEnergyControllerPrivate::l2cpReadyRead()
         break;
     }
 
-    Q_ASSERT(!openRequests.isEmpty());
+    if (openRequests.isEmpty()) {
+        qCWarning(QT_BT_BLUEZ) << "Received unexpected packet from peer, disconnecting.";
+        disconnectFromDevice();
+        return;
+    }
+
     const Request request = openRequests.dequeue();
     processReply(request, reply);