1 files changed, 6 insertions, 0 deletions
diff --git a/src/qml/qml/qqmlmetatype.cpp b/src/qml/qml/qqmlmetatype.cpp
index 980f8469f1..01da5923d9 100644
--- a/src/qml/qml/qqmlmetatype.cpp
+++ b/src/qml/qml/qqmlmetatype.cpp
@@ -76,6 +76,8 @@ public:
     const QQmlMetaTypeData *operator->() const { return data; }
     operator const QQmlMetaTypeData *() const { return data; }
 
+    bool isValid() const { return data != nullptr; }
+
 private:
     QMutexLocker locker;
     LockedData *data = nullptr;
@@ -1206,6 +1208,10 @@ void QQmlMetaType::freeUnusedTypesAndCaches()
 {
     QQmlMetaTypeDataPtr data;
 
+    // in case this is being called during program exit, `data` might be destructed already
+    if (!data.isValid())
+        return;
+
     bool deletedAtLeastOneType;
     do {
         deletedAtLeastOneType = false;