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From: Lars Ingebrigtsen <larsi@gnus.org>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: "Basil L. Contovounesios" <contovob@tcd.ie>,
	Glenn Morris <rgm@gnu.org>,
	Philipp Stephani <p.stephani2@gmail.com>,
	56359@debbugs.gnu.org
Subject: bug#56359: seccomp test failures on RHEL 9.0
Date: Tue, 11 Oct 2022 21:47:28 +0200	[thread overview]
Message-ID: <87a662f8hb.fsf@gnus.org> (raw)
In-Reply-To: <dccacd28-1b58-8653-0444-1bc2e0ca3a23@cs.ucla.edu> (Paul Eggert's message of "Tue, 11 Oct 2022 10:43:45 -0700")

Paul Eggert <eggert@cs.ucla.edu> writes:

> My "fix" involved allowing all uses of clone3, which (as Philipp noted
> in August) is problematic. I'm not sure what's being tested for, but
> if clone3 lets you evade the checks then the test is arguably more
> trouble than it's worth. Would marking it as :unstable lessen the
> number of false alarms we're getting? If not, perhaps we should remove
> it or mark it as :dont-use-unless-you-know-what-youre-doing or
> whatever.

And pidfd_open also sounds like a non-safe call (without looking at it
closely).

Skimming the tests, they seem to test pretty basic functionality in the
seccomp area -- that is, without allowing pidfd_open/clone3, nothing
will be able to run using the seccomp functionality.  But since those
are somewhat unsafe, then...  what's the point?

But I may be missing how this is supposed to be used altogether.






  reply	other threads:[~2022-10-11 19:47 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-02 17:45 bug#56359: seccomp test failures on RHEL 9.0 Glenn Morris
2022-07-15 14:12 ` Philipp Stephani
2022-07-15 23:35   ` Glenn Morris
2022-07-16 10:50     ` Philipp Stephani
2022-08-20 12:37       ` Basil L. Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-11  0:54         ` Lars Ingebrigtsen
2022-10-11 12:36           ` Basil L. Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-11 17:43             ` Paul Eggert
2022-10-11 19:47               ` Lars Ingebrigtsen [this message]
2022-10-18  9:32                 ` Philipp Stephani
2022-10-06 16:56 ` Basil L. Contovounesios via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-10-07 11:56   ` Lars Ingebrigtsen

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