From be5fd4a933f0217378347a2eeccf615a30433649 Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@lemstra.org>
Date: Sun, 2 Jun 2019 15:05:00 +0200
Subject: [PATCH] Added extra check to make sure an 8.3 alias for the file name
 exists.

---
 MagickCore/utility-private.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/utility-private.h b/MagickCore/utility-private.h
index 28c727d10..953290bd2 100644
--- a/MagickCore/utility-private.h
+++ b/MagickCore/utility-private.h
@@ -86,7 +86,7 @@ static inline wchar_t *create_wchar_path(const char *utf8)
       if (count != 0)
         count=GetShortPathNameW(longPath,shortPath,MAX_PATH);
       longPath=(wchar_t *) RelinquishMagickMemory(longPath);
-      if (count < 5)
+      if ((count < 5) || (count >= MAX_PATH))
         return((wchar_t *) NULL);
       wideChar=(wchar_t *) AcquireQuantumMemory(count-3,sizeof(*wideChar));
       wcscpy(wideChar,shortPath+4);
-- 
2.40.0