linux-kernel - Re: [PATCH v4 0/3] io_uring: add restrictions to support untrusted applications and guests

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Message-ID: <82061082-42c8-1e1c-1f36-6f42e7dd10cb@kernel.dk>
Date:   Wed, 26 Aug 2020 10:47:36 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Stefano Garzarella <sgarzare@...hat.com>
Cc:     Christian Brauner <christian.brauner@...ntu.com>,
        Jann Horn <jannh@...gle.com>, Jeff Moyer <jmoyer@...hat.com>,
        Linux FS Devel <linux-fsdevel@...r.kernel.org>,
        Sargun Dhillon <sargun@...gun.me>,
        Kees Cook <keescook@...omium.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        kernel list <linux-kernel@...r.kernel.org>,
        Aleksa Sarai <asarai@...e.de>,
        io-uring <io-uring@...r.kernel.org>
Subject: Re: [PATCH v4 0/3] io_uring: add restrictions to support untrusted
 applications and guests

On 8/25/20 9:20 AM, Stefano Garzarella wrote:
> Hi Jens,
> this is a gentle ping.
> 
> I'll respin, using memdup_user() for restriction registration.
> I'd like to get some feedback to see if I should change anything else.
> 
> Do you think it's in good shape?

As far as I'm concerned, this is fine. But I want to make sure that Kees
is happy with it, as he's the one that's been making noise on this front.

-- 
Jens Axboe