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Message-ID: <20240718.ZuXiejae2ohy@digikod.net>
Date: Thu, 18 Jul 2024 18:21:11 +0200
From: Mickaël Salaün <mic@...ikod.net>
To: Roberto Sassu <roberto.sassu@...weicloud.com>
Cc: James Bottomley <James.Bottomley@...senpartnership.com>,
Mimi Zohar <zohar@...ux.ibm.com>, Al Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Kees Cook <keescook@...omium.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, Paul Moore <paul@...l-moore.com>, Theodore Ts'o <tytso@....edu>,
Alejandro Colomar <alx@...nel.org>, Aleksa Sarai <cyphar@...har.com>,
Andrew Morton <akpm@...ux-foundation.org>, Andy Lutomirski <luto@...nel.org>, Arnd Bergmann <arnd@...db.de>,
Casey Schaufler <casey@...aufler-ca.com>, Christian Heimes <christian@...hon.org>,
Dmitry Vyukov <dvyukov@...gle.com>, Eric Biggers <ebiggers@...nel.org>,
Eric Chiang <ericchiang@...gle.com>, Fan Wu <wufan@...ux.microsoft.com>,
Florian Weimer <fweimer@...hat.com>, Geert Uytterhoeven <geert@...ux-m68k.org>,
James Morris <jamorris@...ux.microsoft.com>, Jan Kara <jack@...e.cz>, Jann Horn <jannh@...gle.com>,
Jeff Xu <jeffxu@...gle.com>, Jonathan Corbet <corbet@....net>,
Jordan R Abrahams <ajordanr@...gle.com>, Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
Luca Boccassi <bluca@...ian.org>, Luis Chamberlain <mcgrof@...nel.org>,
"Madhavan T . Venkataraman" <madvenka@...ux.microsoft.com>, Matt Bobrowski <mattbobrowski@...gle.com>,
Matthew Garrett <mjg59@...f.ucam.org>, Matthew Wilcox <willy@...radead.org>,
Miklos Szeredi <mszeredi@...hat.com>, Nicolas Bouchinet <nicolas.bouchinet@....gouv.fr>,
Scott Shell <scottsh@...rosoft.com>, Shuah Khan <shuah@...nel.org>,
Stephen Rothwell <sfr@...b.auug.org.au>, Steve Dower <steve.dower@...hon.org>,
Steve Grubb <sgrubb@...hat.com>, Thibaut Sautereau <thibaut.sautereau@....gouv.fr>,
Vincent Strubel <vincent.strubel@....gouv.fr>, Xiaoming Ni <nixiaoming@...wei.com>,
Yin Fengwei <fengwei.yin@...el.com>, kernel-hardening@...ts.openwall.com, linux-api@...r.kernel.org,
linux-fsdevel@...r.kernel.org, linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-security-module@...r.kernel.org, Elliott Hughes <enh@...gle.com>
Subject: Re: [RFC PATCH v19 0/5] Script execution control (was O_MAYEXEC)
On Tue, Jul 16, 2024 at 07:31:45PM +0200, Mickaël Salaün wrote:
> On Tue, Jul 16, 2024 at 12:12:49PM -0400, James Bottomley wrote:
> > On Tue, 2024-07-16 at 17:57 +0200, Roberto Sassu wrote:
> > > But the Clip OS 4 patch does not cover the redirection case:
> > >
> > > # ./bash < /root/test.sh
> > > Hello World
> > >
> > > Do you have a more recent patch for that?
>
> Bash was only partially restricted for CLIP OS because it was used for
> administrative tasks (interactive shell).
>
> Python was also restricted for user commands though:
> https://github.com/clipos-archive/clipos4_portage-overlay/blob/master/dev-lang/python/files/python-2.7.9-clip-mayexec.patch
>
> Steve and Christian could help with a better Python implementation.
I'll include a toy interpreter in the next patch series. That should
help for experiments.
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