  Bezier_Down( RAS_ARGS Int        degree,
                        TSplitter  splitter,
                        Long       miny,
                        Long       maxy )
  {
    TPoint*  arc = ras.arc;
    Bool     result, fresh;


    arc[0].y = -arc[0].y;
    arc[1].y = -arc[1].y;
    arc[2].y = -arc[2].y;
    if ( degree > 2 )
      arc[3].y = -arc[3].y;

    fresh = ras.fresh;

    result = Bezier_Up( RAS_VARS degree, splitter, -maxy, -miny );

    if ( fresh && !ras.fresh )
      ras.cProfile->start = -ras.cProfile->start;

    arc[0].y = -arc[0].y;
    return result;
  }

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.