Might be a silly question, but…
*]We don’t know the state of anyone’s soul at death, and
*]Anyone with an unforgiven mortal sin at death is going to hell, and
*]The Church has the power to “bind and loose”, and
*]Anything bound on earth will be bound in heaven,
is it possible that the Church might occasionally canonise someone who is in hell? In that case, would the canonisation raise them to heaven?