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From: Tejun Heo <tj@kernel.org>
To: "Jérémy Jean" <Jeremy.Jean@oss.cyber.gouv.fr>
Cc: "Johannes Weiner" <hannes@cmpxchg.org>,
	"Michal Koutný" <mkoutny@suse.com>,
	brads@mainlining.org, cgroups@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] cgroup: prevent css_set UAF after namespace publication
Date: Thu, 24 Sep 2026 10:52:45 -1000	[thread overview]
Message-ID: <b54f443b33e1637e31a4db8d56c11a1c@kernel.org> (raw)
In-Reply-To: <20260924111036.3330268-2-Jeremy.Jean@oss.cyber.gouv.fr>

Hello, Jeremy.

On Thu, Sep 24, 2026 at 11:10:37AM +0000, Jeremy Jean wrote:
> copy_cgroup_ns() sets the root of a new cgroup namespace to the parent's
> css_set. When the child is created in a different cgroup,
> cgroup_post_fork() replaces that root with the child's css_set after the
> namespace is visible.

Looks good to me.

Acked-by: Tejun Heo <tj@kernel.org>

Can you repost with the namespace maintainers cc'd (Christian Brauner and
the NAMESPACES entry in MAINTAINERS)? I'd like their acks too.

Thanks.

--
tejun

  reply	other threads:[~2026-09-24 20:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-24 11:10 Jérémy Jean
2026-09-24 20:52 ` Tejun Heo [this message]
2026-09-24 20:57 ` Bradley Morgan
2026-09-24 21:01 Jérémy Jean
2026-09-24 21:09 ` Bradley Morgan

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