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Ethan_Barryyesterday at 10:34 PM1 replyview on HN

There was a hash collision bug in the main Lean kernel that was patched, but AFAIK nothing relied on it. You'd have to know what you were doing to accidentally get there...


Replies

bayindirhyesterday at 10:39 PM

The incident in the links I posted exploited several bugs AFAICS, so it's a different story than a single hash collision bug, it seems.