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From:   Jens Axboe <axboe@kernel.dk>
To:     linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        io-uring@vger.kernel.org, asml.silence@gmail.com,
        Matteo Rizzo <matteorizzo@google.com>
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        ribalda@chromium.org, rostedt@goodmis.org, jannh@google.com,
        chenhuacai@kernel.org, gpiccoli@igalia.com, ldufour@linux.ibm.com,
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        jmoyer@redhat.com, krisman@suse.de
In-Reply-To: <20230630151003.3622786-1-matteorizzo@google.com>
References: <20230630151003.3622786-1-matteorizzo@google.com>
Subject: Re: [PATCH v3 0/1] Add a sysctl to disable io_uring system-wide
Message-Id: <168910866387.217585.15007808058378960214.b4-ty@kernel.dk>
Date:   Tue, 11 Jul 2023 14:51:03 -0600
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On Fri, 30 Jun 2023 15:10:02 +0000, Matteo Rizzo wrote:
> Over the last few years we've seen many critical vulnerabilities in
> io_uring[1] which could be exploited by an unprivileged process to gain
> control over the kernel. This patch introduces a new sysctl which disables
> the creation of new io_uring instances system-wide.
> 
> The goal of this patch is to give distros, system admins, and cloud
> providers a way to reduce the risk of privilege escalation through io_uring
> where disabling it with seccomp or at compile time is not practical. For
> example a distro or cloud provider might want to disable io_uring by
> default and have users enable it again if they need to run a program that
> requires it. The new sysctl is designed to let a user with root on the
> machine enable and disable io_uring systemwide at runtime without requiring
> a kernel recompilation or a reboot.
> 
> [...]

Applied, thanks!

[1/1] io_uring: add a sysctl to disable io_uring system-wide
      commit: d55f54dac19a0cee1818353ab5aa3edac9034db4

Best regards,
-- 
Jens Axboe