How to not let the bad guys Segment Smack your Linux box around

There’s a new vulnerability du jour in Linux called Segment Smack. The early writeups about it were really confusing, so I sorted it out and wrote it up for my employer. You can read it here.

The key takeaways, in my opinion: You’re almost guaranteed to have to reboot for this to take effect. Also, most of the writeups say there’s nothing you can do to mitigate except patch. Not quite true. I show you in the writeup how to block the attack long enough to free resources so you can patch. There’s nothing good you can do, but there is a quick fix available to you if you need it.

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