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NASA used too old #Linux kernel so that I don't the badge 😭😭😭 Which also means: no KASAN/syzkaller but 5'000 bugs on Mars 🤔🤔🤔 Remote cross-planetary PoC somebody?

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Satya Nadella

@satyanadella

Apr 19, 2021

A huge congratulations to NASA and to the thousands of developers whose open source contributions on GitHub helped make this historic mission a success. github.blog/2021-04-19-ope

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It's definitely not 3.4.0, but they're treating it that way to simplify it. It's really 3.4.x with a bunch of out-of-tree drivers, other out-of-tree code and backported patches. It'd be a lot more accurate to refer to the CAF kernel tag rather than the mainline tag from Linus.

3:15 PM · Apr 24, 2021Twitter Web App

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Qualcomm did have CONFIG_STRICT_MEMORY_RWX and other features. They still have downstream kernel hardening that's not upstream. At one point, they had a tiny hypervisor enforcing RO kernel code so the kernel couldn't make itself writable but BPF and other features killed that.

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