From b6fe187f0da1477099cdf5c574cf34d6246452d4 Mon Sep 17 00:00:00 2001
From: Fan PengCheng <fanpengcheng@uniontech.com>
Date: Mon, 22 Mar 2021 13:53:02 +0800
Subject: [PATCH] Avoid a crash in QMessageBoxDetailsText, just in case

Change-Id: I3322767363c34ad1f131b6ef24e274e5e5cc9f16
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
---
 src/widgets/dialogs/qmessagebox.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/widgets/dialogs/qmessagebox.cpp b/src/widgets/dialogs/qmessagebox.cpp
index 2bc7acc23d..1ff677847a 100644
--- a/src/widgets/dialogs/qmessagebox.cpp
+++ b/src/widgets/dialogs/qmessagebox.cpp
@@ -100,8 +100,11 @@ public:
         void contextMenuEvent(QContextMenuEvent * e) override
         {
             QMenu *menu = createStandardContextMenu();
-            menu->setAttribute(Qt::WA_DeleteOnClose);
-            menu->popup(e->globalPos());
+            if (menu)
+            {
+                menu->setAttribute(Qt::WA_DeleteOnClose);
+                menu->popup(e->globalPos());
+            }
         }
 #endif // QT_NO_CONTEXTMENU
     };