void GfxState::setLineDash(double *dash, int length, double start) {
  if (lineDash)
    gfree(lineDash);
  lineDash = dash;
  lineDashLength = length;
  lineDashStart = start;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.