4 files changed, 15 insertions, 6 deletions
diff --git a/src/widgets/widgets/qabstractscrollarea.cpp b/src/widgets/widgets/qabstractscrollarea.cpp
index 720a9f908a..04cd3fd136 100644
--- a/src/widgets/widgets/qabstractscrollarea.cpp
+++ b/src/widgets/widgets/qabstractscrollarea.cpp
@@ -442,8 +442,10 @@ void QAbstractScrollAreaPrivate::layoutChildren_helper(bool *needHorizontalScrol
         viewportRect.adjust(right, top, -left, -bottom);
     else
         viewportRect.adjust(left, top, -right, -bottom);
+    viewportRect = QStyle::visualRect(opt.direction, opt.rect, viewportRect);
+    viewportRect.translate(-overshoot);
+    viewport->setGeometry(viewportRect); // resize the viewport last
 
-    viewport->setGeometry(QStyle::visualRect(opt.direction, opt.rect, viewportRect)); // resize the viewport last
     *needHorizontalScrollbar = needh;
     *needVerticalScrollbar = needv;
 }
diff --git a/src/widgets/widgets/qfontcombobox.cpp b/src/widgets/widgets/qfontcombobox.cpp
index 4a99b0f962..289e2bc261 100644
--- a/src/widgets/widgets/qfontcombobox.cpp
+++ b/src/widgets/widgets/qfontcombobox.cpp
@@ -313,6 +313,10 @@ public:
 void QFontComboBoxPrivate::_q_updateModel()
 {
     Q_Q(QFontComboBox);
+
+    if (QCoreApplication::closingDown())
+        return;
+
     const int scalableMask = (QFontComboBox::ScalableFonts | QFontComboBox::NonScalableFonts);
     const int spacingMask = (QFontComboBox::ProportionalFonts | QFontComboBox::MonospacedFonts);
 
diff --git a/src/widgets/widgets/qplaintextedit.cpp b/src/widgets/widgets/qplaintextedit.cpp
index 6694b79dda..144517ee0e 100644
--- a/src/widgets/widgets/qplaintextedit.cpp
+++ b/src/widgets/widgets/qplaintextedit.cpp
@@ -1942,7 +1942,7 @@ void QPlainTextEdit::paintEvent(QPaintEvent *e)
 
     // keep right margin clean from full-width selection
     int maxX = offset.x() + qMax((qreal)viewportRect.width(), maximumWidth)
-               - document()->documentMargin();
+               - document()->documentMargin() + cursorWidth();
     er.setRight(qMin(er.right(), maxX));
     painter.setClipRect(er);
 
diff --git a/src/widgets/widgets/qscrollarea.cpp b/src/widgets/widgets/qscrollarea.cpp
index f880240ea7..e8fdadb648 100644
--- a/src/widgets/widgets/qscrollarea.cpp
+++ b/src/widgets/widgets/qscrollarea.cpp
@@ -203,10 +203,13 @@ void QScrollAreaPrivate::updateScrollBars()
             if (vbarpolicy == Qt::ScrollBarAsNeeded) {
                 int vbarWidth = vbar->sizeHint().width();
                 QSize m_hfw = m.expandedTo(min).boundedTo(max);
-                while (h > m.height() && vbarWidth) {
-                    --vbarWidth;
-                    --m_hfw.rwidth();
-                    h = widget->heightForWidth(m_hfw.width());
+                // is there any point in searching?
+                if (widget->heightForWidth(m_hfw.width() - vbarWidth) <= m.height()) {
+                    while (h > m.height() && vbarWidth) {
+                        --vbarWidth;
+                        --m_hfw.rwidth();
+                        h = widget->heightForWidth(m_hfw.width());
+                    }
                 }
                 max = QSize(m_hfw.width(), qMax(m_hfw.height(), h));
             }