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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
To: Maxime Devos <maximedevos@telenet.be>
Subject: Re: Potential security weakness in Guix services
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 (Maxime Devos's message of "Fri, 05 Feb 2021 15:16:39 +0100")
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Maxime Devos <maximedevos@telenet.be> skribis:

> On Fri, 2021-02-05 at 13:20 +0100, Maxime Devos wrote:
>> On Fri, 2021-02-05 at 10:57 +0100, Ludovic Court=C3=A8s wrote:
>> > [...]
>> [...]
>>=20
>> I'll try to implement this API in Scheme (using the FFI), and post
>> it at https://notabug.org/mdevos/things.  I'll post a follow-up
>> messsage once I've implemented the basics (openat, chmodat,
>> chownat).
>
> Ping!
> https://notabug.org/mdevos/things/src/a0715e6758ad43252e16993dcf688a25156=
057f3/fs-at.scm

Nice!

I just remembered this subtlety: during bootup, the activation code is
evaluated by the Guile that=E2=80=99s in the initrd, which is a
statically-linked Guile, and thus we can=E2=80=99t use =E2=80=98dynamic-lin=
k=E2=80=99 & co. in
there.  :-/

(That=E2=80=99s why we carry =E2=80=98guile-linux-syscalls.patch=E2=80=99.)

Ludo=E2=80=99.