From abf6b240975e9cf99d173e2dfbee3b5a0a75c372 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 11 Jun 2018 20:26:21 -0400
Subject: [PATCH] ...

---
 coders/png.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/coders/png.c b/coders/png.c
index 33723484a..8b84a83ef 100644
--- a/coders/png.c
+++ b/coders/png.c
@@ -6127,7 +6127,7 @@ static Image *ReadOneMNGImage(MngInfo* mng_info, const ImageInfo *image_info,
           {
             /* Read DISC or SEEK.  */
 
-            if ((length == 0) || !memcmp(type,mng_SEEK,4))
+            if ((length == 0) || (length % 2) || !memcmp(type,mng_SEEK,4))
               {
                 for (i=1; i < MNG_MAX_OBJECTS; i++)
                   MngInfoDiscardObject(mng_info,i);
-- 
2.40.0