From: Dirk Lemstra <dirk@lemstra.org>
Date: Sun, 2 Jun 2019 13:05:00 +0000 (+0200)
Subject: Added extra check to make sure an 8.3 alias for the file name exists.
X-Git-Tag: 7.0.8-49~13
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=be5fd4a933f0217378347a2eeccf615a30433649;p=imagemagick

Added extra check to make sure an 8.3 alias for the file name exists.
---

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);