fix multiple memory leak in ReadYUVImage

diff --git a/coders/yuv.c b/coders/yuv.c
index a203ea76819753ec6f3b7ab68e115aa24abb1e40..6eeac3d557fd59d3b55bd00eb7d11740affdc974 100644 (file)
--- a/coders/yuv.c
+++ b/coders/yuv.c
@@ -211,7 +211,10 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
       horizontal_factor,(image->rows+vertical_factor-1)/vertical_factor,
       MagickTrue,exception);
     if (chroma_image == (Image *) NULL)
-      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+      {
+        scanline=(unsigned char *) RelinquishMagickMemory(scanline); 
+        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+      }
     /*
       Convert raster image to pixel packets.
     */
@@ -227,6 +230,7 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
         status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
         if (status == MagickFalse)
           {
+            scanline=(unsigned char *) RelinquishMagickMemory(scanline); 
             image=DestroyImageList(image);
             return((Image *) NULL);
           }
@@ -353,6 +357,7 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
         status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
         if (status == MagickFalse)
           {
+            scanline=(unsigned char *) RelinquishMagickMemory(scanline); 
             image=DestroyImageList(image);
             return((Image *) NULL);
           }
@@ -399,6 +404,7 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
           status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
           if (status == MagickFalse)
             {
+              scanline=(unsigned char *) RelinquishMagickMemory(scanline); 
               image=DestroyImageList(image);
               return((Image *) NULL);
             }
@@ -442,7 +448,10 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
       TriangleFilter,exception);
     chroma_image=DestroyImage(chroma_image);
     if (resize_image == (Image *) NULL)
-      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+      {
+        scanline=(unsigned char *) RelinquishMagickMemory(scanline);   
+        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
+      }
     for (y=0; y < (ssize_t) image->rows; y++)
     {
       q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
@@ -491,6 +500,7 @@ static Image *ReadYUVImage(const ImageInfo *image_info,ExceptionInfo *exception)
         AcquireNextImage(image_info,image,exception);
         if (GetNextImageInList(image) == (Image *) NULL)
           {
+            scanline=(unsigned char *) RelinquishMagickMemory(scanline); 
             image=DestroyImageList(image);
             return((Image *) NULL);
           }