Commit 378bfc12b for imagemagick.org

commit 378bfc12bf7bbc4d9ab081120873efef935ebd85
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Fri Jun 19 16:08:29 2026 -0400

    https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-76q6-2p6h-xjqr

diff --git a/MagickCore/xwindow.c b/MagickCore/xwindow.c
index b9a833c67..a11bd0ce7 100644
--- a/MagickCore/xwindow.c
+++ b/MagickCore/xwindow.c
@@ -5088,7 +5088,7 @@ MagickExport Image *XImportImage(const ImageInfo *image_info,
         {
           if (*image_info->filename == '\0')
             (void) CopyMagickString(image->filename,(char *) window_name.value,
-              (size_t) window_name.nitems+1);
+              (size_t) MagickMin(window_name.nitems+1,MagickPathExtent));
           (void) XFree((void *) window_name.value);
         }
     }