I'm pretty out of the loop on a lot of things - what happened at Valve? I've done some searching but my keywords aren't pulling up much of anything aside from a 2018 account of internal politics at play at Valve.
My first gig out of school was a .net monolith with ~14 million lines of code; it's the best dev environment I've ever experienced, even as a newcomer who didn't have a mental map of the system. All the code was right there, all I had to do was embrace "go to definition" to find the answers to like 95% of my questions. I spend the majority of my time debugging distrubuted issues across microservices these days; I miss the simplicity of my monolith years :(
This is confusing - the reporter claims to have "crafted the exploit" using the info they got from Bard. So the hallucinated info was actionable enough to actually perform the/an exploit, even though the report was closed as bogus?
No, they weren't able to "craft the exploit". The text claims an integer overflow bug in curl_easy_setopt, and provides a code snippet that fixes it. Except the code snippet has a completely different function signature than the real curl_easy_setopt, and doesn't even compile. I doubt this person did any follow through at all, just copy/pasted the output from Bard directly into this bug report.