void CLASS foveon_sd_load_raw()
{
  struct decode *dindex;
  short diff[1024];
  unsigned bitbuf=0;
  int pred[3], row, col, bit=-1, c, i;

  read_shorts ((ushort *) diff, 1024);
  if (!load_flags) foveon_decoder (1024, 0);

  for (row=0; row < height; row++) {
#ifdef LIBRAW_LIBRARY_BUILD
    checkCancel();
#endif
    memset (pred, 0, sizeof pred);
    if (!bit && !load_flags && atoi(model+2) < 14) get4();
    for (col=bit=0; col < width; col++) {
      if (load_flags) {
	bitbuf = get4();
	FORC3 pred[2-c] += diff[bitbuf >> c*10 & 0x3ff];
      }
      else FORC3 {
	for (dindex=first_decode; dindex->branch[0]; ) {
	  if ((bit = (bit-1) & 31) == 31)
	    for (i=0; i < 4; i++)
	      bitbuf = (bitbuf << 8) + fgetc(ifp);
	  dindex = dindex->branch[bitbuf >> bit & 1];
	}
	pred[c] += diff[dindex->leaf];
	if (pred[c] >> 16 && ~pred[c] >> 16) derror();
      }
      FORC3 image[row*width+col][c] = pred[c];
    }
  }
}

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.