diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index a7f48b5c598..ac5e839eb2e 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -1001,7 +1001,7 @@ QObject::~QObject()
         emit destroyed(this);
     }
 
-    if (d->declarativeData && QAbstractDeclarativeData::destroyed)
+    if (!d->isDeletingChildren && d->declarativeData && QAbstractDeclarativeData::destroyed)
         QAbstractDeclarativeData::destroyed(d->declarativeData, this);
 
     QObjectPrivate::ConnectionData *cd = d->connections.loadRelaxed();
@@ -2625,7 +2625,7 @@ int QObject::receivers(const char *signal) const
         if (!d->isSignalConnected(signal_index))
             return receivers;
 
-        if (d->declarativeData && QAbstractDeclarativeData::receivers) {
+        if (!d->isDeletingChildren && d->declarativeData && QAbstractDeclarativeData::receivers) {
             receivers += QAbstractDeclarativeData::receivers(d->declarativeData, this,
                                                              signal_index);
         }
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index 3f55fba6b00..f82dce51f32 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -225,7 +225,7 @@ inline void QObjectPrivate::checkForIncompatibleLibraryVersion(int version) cons
 
 inline bool QObjectPrivate::isDeclarativeSignalConnected(uint signal_index) const
 {
-    return declarativeData && QAbstractDeclarativeData::isSignalConnected
+    return !isDeletingChildren && declarativeData && QAbstractDeclarativeData::isSignalConnected
             && QAbstractDeclarativeData::isSignalConnected(declarativeData, q_func(), signal_index);
 }
 
diff --git a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
index f765440e718..107299e9831 100644
--- a/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
+++ b/tests/auto/corelib/kernel/qobject/tst_qobject.cpp
@@ -147,6 +147,7 @@ private slots:
     void singleShotConnection();
     void objectNameBinding();
     void emitToDestroyedClass();
+    void declarativeData();
 };
 
 struct QObjectCreatedOnShutdown
@@ -8241,5 +8242,81 @@ signals:
     void aSignal5(const std::unique_ptr<const QObject> &);
 };
 
+#ifdef QT_BUILD_INTERNAL
+/*
+    Since QObjectPrivate stores the declarativeData pointer in a union with the pointer
+    to the currently destroyed child, calls to the QtDeclarative handlers need to be
+    correctly guarded. QTBUG-105286
+*/
+namespace QtDeclarative {
+static QAbstractDeclarativeData *theData;
+
+static void destroyed(QAbstractDeclarativeData *data, QObject *)
+{
+    QCOMPARE(data, theData);
+}
+static void signalEmitted(QAbstractDeclarativeData *data, QObject *, int, void **)
+{
+    QCOMPARE(data, theData);
+}
+// we can't use QCOMPARE in the next two functions, as they don't return void
+static int receivers(QAbstractDeclarativeData *data, const QObject *, int)
+{
+    QTest::qCompare(data, theData, "data", "theData", __FILE__, __LINE__);
+    return 0;
+}
+static bool isSignalConnected(QAbstractDeclarativeData *data, const QObject *, int)
+{
+    QTest::qCompare(data, theData, "data", "theData", __FILE__, __LINE__);
+    return true;
+}
+
+class Object : public QObject
+{
+    Q_OBJECT
+public:
+    using QObject::QObject;
+    ~Object()
+    {
+        if (Object *p = static_cast<Object *>(parent()))
+            p->emitSignal();
+    }
+
+    void emitSignal()
+    {
+        emit theSignal();
+    }
+
+signals:
+    void theSignal();
+};
+
+}
+#endif
+
+void tst_QObject::declarativeData()
+{
+#ifdef QT_BUILD_INTERNAL
+    QScopedValueRollback destroyed(QAbstractDeclarativeData::destroyed,
+                                   QtDeclarative::destroyed);
+    QScopedValueRollback signalEmitted(QAbstractDeclarativeData::signalEmitted,
+                                       QtDeclarative::signalEmitted);
+    QScopedValueRollback receivers(QAbstractDeclarativeData::receivers,
+                                   QtDeclarative::receivers);
+    QScopedValueRollback isSignalConnected(QAbstractDeclarativeData::isSignalConnected,
+                                           QtDeclarative::isSignalConnected);
+
+    QtDeclarative::Object p;
+    QObjectPrivate *priv = QObjectPrivate::get(&p);
+    priv->declarativeData = QtDeclarative::theData = new QAbstractDeclarativeData;
+
+    connect(&p, &QtDeclarative::Object::theSignal, &p, []{
+    });
+
+    QtDeclarative::Object *child = new QtDeclarative::Object;
+    child->setParent(&p);
+#endif
+}
+
 QTEST_MAIN(tst_QObject)
 #include "tst_qobject.moc"