prevent cursor from going out of bounds

ImageMagick · Dec 4, 2024 · 85ad0f7 · 85ad0f7
1 parent 5bd92ae
commit 85ad0f7
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/magick/widget.c b/magick/widget.c
@@ -1168,7 +1168,8 @@ static void XEditText(Display *display,XWidgetInfo *text_info,
           q=text_info->text+Extent(text_info->text)+strlen(text);
           for (i=0; i <= Extent(text_info->cursor); i++)
           {
-            *q=(*(q-Extent(text)));
+            if ((q-Extent(text)) > text_info->text)
+              *q=(*(q-Extent(text)));
             q--;
           }
           p=text;