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Not to defend the research, but I've been hearing for years that it would be difficult to introduce bugdoors into the Kernel.

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It would be difficult for an unknown individual or unknown/untrusted organisation. It's less difficult for a respected university willing to sacrifice its reputation.

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See, that's exactly my point, people say that. It would not be difficult at all, the research showed that. Greg's response also shows that.

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Pretty sure you didn't read what I said.

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You're saying that there was implicit trust in the University before, but a random user wouldn't have that, and so their patches would receive more scrutiny?

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Yes

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OK so I did understand correctly. So to reiterate, I believe that anyone could submit a patch to the Linux kernel introducing an intentional vulnerability, and I believe that the research as well as Greg's response support this.

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I don't believe that there was a strong implicit trust attached to the edu email, and Greg as much states that patches don't review that kind of scrutiny. It's no one's fault really, it's not practical to expect them to catch bugdoors.

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Your beliefs are incorrect, then.

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The patches for the study were not submitted from university email addresses. Even if that was the case, which it wasn't, anyone attending the university gets those email addresses as do alumni in many cases.

10:11 PM · Apr 22, 2021Twitter Web App

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People regularly sell access to those emails due to exclusive products, etc. for US university students. You can go to eBay right now and pay for access. It costs a few dollars. Not relevant to this but that would be a pretty weak argument if it was how they were submitted.