3 files changed, 4 insertions, 0 deletions
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index 00f590ebc2..ed10beddd4 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -1508,6 +1508,7 @@ void QApplicationPrivate::setPalette_helper(const QPalette &palette, const char*
             QApplicationPrivate::set_pal = new QPalette(palette);
         else
             *QApplicationPrivate::set_pal = palette;
+        QCoreApplication::setAttribute(Qt::AA_SetPalette);
     }
 }
 
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 1f13a34ac0..b49fd9b3b6 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -2608,6 +2608,8 @@ QString QWidget::styleSheet() const
 void QWidget::setStyleSheet(const QString& styleSheet)
 {
     Q_D(QWidget);
+    if (data->in_destructor)
+        return;
     d->createExtra();
 
     QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle *>(d->extra->style);
diff --git a/src/widgets/kernel/qwidgetbackingstore.cpp b/src/widgets/kernel/qwidgetbackingstore.cpp
index f8b8ec5ea3..485cf82078 100644
--- a/src/widgets/kernel/qwidgetbackingstore.cpp
+++ b/src/widgets/kernel/qwidgetbackingstore.cpp
@@ -762,6 +762,7 @@ QWidgetBackingStore::~QWidgetBackingStore()
         resetWidget(dirtyRenderToTextureWidgets.at(c));
 
 #ifndef QT_NO_OPENGL
+    delete widgetTextures;
     delete dirtyOnScreenWidgets;
 #endif
     dirtyOnScreenWidgets = 0;