static OPJ_SIZE_T JP2WriteHandler(void *buffer,OPJ_SIZE_T length,void *context)
{
  Image
    *image;

  ssize_t
    count;

  image=(Image *) context;
  count=WriteBlob(image,(ssize_t) length,(unsigned char *) buffer);
  return((OPJ_SIZE_T) count);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.