From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Sun, 18 Feb 2018 13:27:23 +0000 (+0100)
Subject: Fixed memory leak.
X-Git-Tag: 7.0.7-23~13
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b517fc1f683dc2e54ed0e93ecdb8b956c773ce45;p=imagemagick

Fixed memory leak.
---

diff --git a/MagickCore/blob.c b/MagickCore/blob.c
index db5dbf227..c0934cda8 100644
--- a/MagickCore/blob.c
+++ b/MagickCore/blob.c
@@ -1912,7 +1912,9 @@ MagickExport void *ImageToBlob(const ImageInfo *image_info,
           status=WriteImage(blob_info,image,exception);
           *length=image->blob->length;
           blob=DetachBlob(image->blob);
-          if (status == MagickFalse)
+          if (blob == (void *) NULL)
+            blob_info->blob=RelinquishMagickMemory(blob_info->blob);
+          else if (status == MagickFalse)
             blob=RelinquishMagickMemory(blob);
           else
             blob=ResizeQuantumMemory(blob,*length+1,sizeof(unsigned char));
@@ -2308,7 +2310,9 @@ MagickExport void *ImagesToBlob(const ImageInfo *image_info,Image *images,
           status=WriteImages(clone_info,images,images->filename,exception);
           *length=images->blob->length;
           blob=DetachBlob(images->blob);
-          if (status == MagickFalse)
+          if (blob == (void *) NULL)
+            clone_info->blob=RelinquishMagickMemory(clone_info->blob);
+          else if (status == MagickFalse)
             blob=RelinquishMagickMemory(blob);
           else
             blob=ResizeQuantumMemory(blob,*length+1,sizeof(unsigned char));