Question on genesis 9, verse 21-27

I’ve started to read the Bible as I want to connect and learn more about God, I came across the part about Noah being asleep and naked in his tent, and Ham, his son, told his brothers, and his brothers covered Noah without looking at him. When Noah awoke, he cursed Ham’s son Canan. I was confused at first, but after researching a bit I came to this conclusion. Ham sinned by dishonoring his father by gossiping to his brothers, right? Though I think Noah cursing Canan was a bit extreme.