From 88b2d9ad84b6806ae65b354f85dc3ad5f2cad5ed Mon Sep 17 00:00:00 2001
From: Christian Speckner <christian.speckner@mayflower.de>
Date: Wed, 8 Jun 2022 19:10:43 +0000
Subject: [PATCH] Fix memory corruption if history is empty.

---
 src/gui/FileListWidget.cxx | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/gui/FileListWidget.cxx b/src/gui/FileListWidget.cxx
index e4acdc227..2bec83dd3 100644
--- a/src/gui/FileListWidget.cxx
+++ b/src/gui/FileListWidget.cxx
@@ -259,16 +259,16 @@ string& FileListWidget::fixPath(string& path)
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 void FileListWidget::addHistory(const FilesystemNode& node)
 {
-  //while(_history.size() > _historyIndex)
-  while(_currentHistory != std::prev(_history.end(), 1))
-    _history.pop_back();
+  if (_history.size() > 0) {
+    while(_currentHistory != std::prev(_history.end(), 1))
+      _history.pop_back();
 
-  string select = selected().getName();
-  _currentHistory->selected = fixPath(select);
+    string select = selected().getName();
+    _currentHistory->selected = fixPath(select);
+  }
 
   _history.emplace_back(node, "..");
   _currentHistory = std::prev(_history.end(), 1);
-  //_historyIndex++;
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -