linux-kernel - Re: [PATCH v6 1/1] ns: add binfmt

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Message-ID: <0fb09ce6-e006-31a2-1f32-f3f6eda44504@vivier.eu>
Date:   Wed, 24 Oct 2018 18:15:55 +0100
From:   Laurent Vivier <laurent@...ier.eu>
To:     Andrei Vagin <avagin@...il.com>
Cc:     linux-kernel@...r.kernel.org, Jann Horn <jannh@...gle.com>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Eric Biederman <ebiederm@...ssion.com>,
        containers@...ts.linux-foundation.org,
        Dmitry Safonov <dima@...sta.com>
Subject: Re: [PATCH v6 1/1] ns: add binfmt_misc to the user namespace

On 16/10/2018 17:22, Andrei Vagin wrote:
> On Wed, Oct 10, 2018 at 06:14:30PM +0200, Laurent Vivier wrote:
>> This patch allows to have a different binfmt_misc configuration
>> for each new user namespace. By default, the binfmt_misc configuration
>> is the one of the previous level, but if the binfmt_misc filesystem is
>> mounted in the new namespace a new empty binfmt instance is created and
>> used in this namespace.
>>
>> For instance, using "unshare" we can start a chroot of another
>> architecture and configure the binfmt_misc interpreter without being root
>> to run the binaries in this chroot.
>>
>> Signed-off-by: Laurent Vivier <laurent@...ier.eu>
> 
> Acked-by: Andrei Vagin <avagin@...il.com>
> 
> Thanks,
> Andrei
> 

I don't konw who is the maintainer for this part, but is there any
chance to have this merged in 4.20?

Thanks,
Laurent