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List:       fedora-devel-list
Subject:    Re: Restricting automounting of uncommon filesystems?
From:       Michael Catanzaro <mcatanzaro () redhat ! com>
Date:       2023-07-24 14:17:23
Message-ID: Z01BYR.XWBSCMYAIVG12 () redhat ! com
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On Sun, Jul 23 2023 at 11:18:45 PM -0400, Demi Marie Obenour 
<demiobenour@gmail.com> wrote:
> Then the mount needs to be done in a sandbox, such as a KVM guest or
> sandboxed userspace process.

Hmmm... I don't think traditional sandboxing accomplishes anything 
here, because we're trying to protect against kernel bugs, not 
userspace bugs, and if the kernel is compromised then you escape the 
sandbox. A KVM virtual machine would solve that, certainly, but that 
sounds really complicated to do? We don't have any precedent for 
spinning up virtual machines to perform normal desktop operations. 
Doesn't that require hardware support anyway? i.e. virtualization might 
be disabled at the firmware level?

Michael

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