this post was submitted on 11 Feb 2025
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Sure, I’ll do another mini-rant.
I have no idea what real world threat model and threat actor the Wayland people are going for. A threat actor with code execution on a Linux desktop immediately has access to the filesystem and can do whatever anyway, in practice (see also: Steam deleting home directories). Privilege Escalation is a thing and namespaces in Linux are kinda meh. Run your untrusted code in an ephemeral VM.
My point is just that once you have a threat actor running code on your system, it’s game over regardless of whatever your desktop tries to do. (I’ll run with the Maginot Line comparison here, but Wayland is more like a locked door without walls.)
The security issues with X were the X-Forwarding-stuff being kinda bad, not the ”full access to everything”-stuff. I want my applications to access my things, otherwise I wouldn’t run the application.
If your threat model seriously needs sandboxing, you’ll wanna go the Qubes-route. Anyways, Arcan seems to have a more reasonable threat model than Wayland if you wanna go that route.
Thanks for reading my yearly mini rant on why Wayland’s security don’t matter and only gets in the way of the user and application developer.
No.