From: Cristy <urban-warrior@imagemagick.org>
Date: Tue, 20 Sep 2016 14:44:11 +0000 (-0400)
Subject: https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=30504
X-Git-Tag: 7.0.3-1~7
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e13e029984cc210dfab35025870a407e37c4b37f;p=imagemagick

https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=30504
---

diff --git a/coders/wpg.c b/coders/wpg.c
index 4f221fd6b..f64744350 100644
--- a/coders/wpg.c
+++ b/coders/wpg.c
@@ -589,9 +589,15 @@ static int UnpackWPG2Raster(Image *image,int bpp,ExceptionInfo *exception)
         case 0x7D:
           SampleSize=ReadBlobByte(image);  /* DSZ */
           if(SampleSize>8)
-            return(-2);
+            {
+              BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff);
+              return(-2);
+            }
           if(SampleSize<1)
-            return(-2);
+            {
+              BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff);
+              return(-2);
+            }
           break;
         case 0x7E:
           (void) FormatLocaleFile(stderr,
@@ -624,6 +630,7 @@ static int UnpackWPG2Raster(Image *image,int bpp,ExceptionInfo *exception)
               (void) FormatLocaleFile(stderr,
                 "\nUnsupported WPG2 unaligned token RST x=%.20g, please report!\n"
                 ,(double) x);
+              BImgBuff=(unsigned char *) RelinquishMagickMemory(BImgBuff);
               return(-3);
             }
           {