2 files changed, 7 insertions, 3 deletions
diff --git a/src/gui/text/qtextmarkdownimporter.cpp b/src/gui/text/qtextmarkdownimporter.cpp
index 7e18a10895..5e75e7816b 100644
--- a/src/gui/text/qtextmarkdownimporter.cpp
+++ b/src/gui/text/qtextmarkdownimporter.cpp
@@ -577,7 +577,10 @@ void QTextMarkdownImporter::insertBlock()
     QTextBlockFormat blockFormat;
     if (!m_listStack.isEmpty() && !m_needsInsertList && m_listItem) {
         QTextList *list = m_listStack.top();
-        blockFormat = list->item(list->count() - 1).blockFormat();
+        if (list)
+            blockFormat = list->item(list->count() - 1).blockFormat();
+        else
+            qWarning() << "attempted to insert into a list that no longer exists";
     }
     if (m_blockQuoteDepth) {
         blockFormat.setProperty(QTextFormat::BlockQuoteLevel, m_blockQuoteDepth);
@@ -607,7 +610,7 @@ void QTextMarkdownImporter::insertBlock()
     }
     if (m_needsInsertList) {
         m_listStack.push(m_cursor->createList(m_listFormat));
-    } else if (!m_listStack.isEmpty() && m_listItem) {
+    } else if (!m_listStack.isEmpty() && m_listItem && m_listStack.top()) {
         m_listStack.top()->add(m_cursor->block());
     }
     m_needsInsertList = false;
diff --git a/src/gui/text/qtextmarkdownimporter_p.h b/src/gui/text/qtextmarkdownimporter_p.h
index f450da5eb3..f12b725d8e 100644
--- a/src/gui/text/qtextmarkdownimporter_p.h
+++ b/src/gui/text/qtextmarkdownimporter_p.h
@@ -56,6 +56,7 @@
 #include <QtGui/qpalette.h>
 #include <QtGui/qtextdocument.h>
 #include <QtGui/qtextlist.h>
+#include <QtCore/qpointer.h>
 #include <QtCore/qstack.h>
 
 QT_BEGIN_NAMESPACE
@@ -113,7 +114,7 @@ private:
 #endif
     QString m_blockCodeLanguage;
     QVector<int> m_nonEmptyTableCells; // in the current row
-    QStack<QTextList *> m_listStack;
+    QStack<QPointer<QTextList>> m_listStack;
     QStack<QTextCharFormat> m_spanFormatStack;
     QFont m_monoFont;
     QPalette m_palette;