#498 memory leak in cmyk.c

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Here is the critical code : ( in cmyk.c)

scanline=MagickAllocateArray(unsigned char *,  //163
                   packet_size,image->tile_info.width);
  if (scanline == (unsigned char *) NULL)
    ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,image);

...
        if (image_info->interlace == PartitionInterlace)
          {
            AppendImageFormat("C",image->filename);
            status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
            if (status == False)
              ThrowReaderException(FileOpenError,UnableToOpenFile,image);//301
...
        if (image_info->interlace == PartitionInterlace)
          {
            CloseBlob(image);
            AppendImageFormat("M",image->filename);
            status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
            if (status == False)
              ThrowReaderException(FileOpenError,UnableToOpenFile,image);//336
          }

...
        if (image_info->interlace == PartitionInterlace)
          {
            CloseBlob(image);
            AppendImageFormat("Y",image->filename);
            status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
            if (status == False)
              ThrowReaderException(FileOpenError,UnableToOpenFile,image);//367
          }
...
        if (image_info->interlace == PartitionInterlace)
          {
            CloseBlob(image);
            AppendImageFormat("K",image->filename);
            status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
            if (status == False)
              ThrowReaderException(FileOpenError,UnableToOpenFile,image);//397
          }
...
            if (image_info->interlace == PartitionInterlace)
              {
                CloseBlob(image);
                AppendImageFormat("A",image->filename);
                status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
                if (status == False)
                  ThrowReaderException(FileOpenError,UnableToOpenFile,image);//434
              }

Line 301,336,367,397,434 do not free memory about scanline, this will cause memory leak.

Credit: ADLab of Venustech

[Bob Friesenhahn]

This problem is fixed by Mercurial changeset 15204:2a84c4f0f453. Thanks for the report!