This is a follow up and conclusion to the HN post about the discovery of this a few days ago here[0].

Upstream commit is here[1]

Glad to see it has been root caused and worked around in such short order.

[0] https://news.ycombinator.com/item?id=37812556

[1] https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/...