Recent and related:
Learnings from kCTF VRP's 42 Linux kernel exploits submissions - https://news.ycombinator.com/item?id=36350693 - June 2023 (87 comments)
Past discussion of current article:
Put an io_uring on it: Exploiting the Linux kernel - https://news.ycombinator.com/item?id=30605356 - March 2022 (22 comments)