From a0cef9db632ef8e1b9de4c463700c6a24d4f96ca Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sun, 3 Sep 2017 12:05:58 -0400
Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/724

---
 coders/pdf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/coders/pdf.c b/coders/pdf.c
index 40a723c84..09bb4aed4 100644
--- a/coders/pdf.c
+++ b/coders/pdf.c
@@ -145,6 +145,8 @@ static int MagickDLLCall PDFDelegateMessage(void *handle,const char *message,
       *messages=(char *) ResizeQuantumMemory(*messages,offset+length+1,
         sizeof(char *));
     }
+  if (*messages == (char *) NULL)
+    return(0);
   (void) memcpy(*messages+offset,message,length);
   (*messages)[length+offset] ='\0';
   return(length);
-- 
2.50.1