Fix a potential use-after-free in ATC code

- when dynamics shuts down the ATC controllers, they clear their
  traffic vectors (destroying the records), but we didn’t notify
  the AI aircraft of this. Ensure the controller is cleared so
  the AI aircraft shutdown doesn’t crash.

diff --git a/src/ATC/trafficcontrol.cxx b/src/ATC/trafficcontrol.cxx
index 0da90a6a882270232311a13aa04c4a3a5168536b..4160595294759491d8b8f210ced0ec97d3300651 100644 (file)
--- a/src/ATC/trafficcontrol.cxx
+++ b/src/ATC/trafficcontrol.cxx
@@ -190,6 +190,9 @@ FGTrafficRecord::FGTrafficRecord():
 
 FGTrafficRecord::~FGTrafficRecord()
 {
+    if (aircraft) {
+        aircraft->clearATCController();
+    }
 }
 
 void FGTrafficRecord::setPositionAndIntentions(int pos,