linux-kernel - Re: [PATCH v5 0/6] capabilities: Introduce CAP_CHECKPOINT

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Message-ID: <20200718174739.bg73idrihaj4p2qf@wittgenstein>
Date:   Sat, 18 Jul 2020 19:47:39 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     "Serge E. Hallyn" <serge@...lyn.com>,
        Adrian Reber <areber@...hat.com>,
        Nicolas Viennot <Nicolas.Viennot@...sigma.com>
Cc:     Adrian Reber <areber@...hat.com>,
        Eric Biederman <ebiederm@...ssion.com>,
        Pavel Emelyanov <ovzxemul@...il.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Andrei Vagin <avagin@...il.com>,
        Michał Cłapiński <mclapinski@...gle.com>,
        Kamil Yurtsever <kyurtsever@...gle.com>,
        Dirk Petersen <dipeit@...il.com>,
        Christine Flood <chf@...hat.com>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Radostin Stoyanov <rstoyanov1@...il.com>,
        Cyrill Gorcunov <gorcunov@...nvz.org>,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Sargun Dhillon <sargun@...gun.me>,
        Arnd Bergmann <arnd@...db.de>,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, selinux@...r.kernel.org,
        Eric Paris <eparis@...isplace.org>,
        Jann Horn <jannh@...gle.com>, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v5 0/6] capabilities: Introduce CAP_CHECKPOINT_RESTORE

On Fri, Jul 17, 2020 at 10:24:16PM -0500, Serge Hallyn wrote:
> On Wed, Jul 15, 2020 at 04:49:48PM +0200, Adrian Reber wrote:
> > This is v5 of the 'Introduce CAP_CHECKPOINT_RESTORE' patchset. The
> > changes to v4 are:
> > 
> >  * split into more patches to have the introduction of
> >    CAP_CHECKPOINT_RESTORE and the actual usage in different
> >    patches
> >  * reduce the /proc/self/exe patch to only be about
> >    CAP_CHECKPOINT_RESTORE
> > 
> > Adrian Reber (5):
> >   capabilities: Introduce CAP_CHECKPOINT_RESTORE
> >   pid: use checkpoint_restore_ns_capable() for set_tid
> >   pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
> >   proc: allow access in init userns for map_files with CAP_CHECKPOINT_RESTORE
> >   selftests: add clone3() CAP_CHECKPOINT_RESTORE test
> > 
> > Nicolas Viennot (1):
> >   prctl: Allow checkpoint/restore capable processes to change exe link
> 
> (This is probably bad form, but)  All
> 
> Reviewed-by: Serge Hallyn <serge@...lyn.com>
> 
> Assuming you changes patches 4 and 6 per Christian's suggestions,
> I'd like to re-review those then.

Thanks, once Adrian has reposted the changes and you agree with them as
well, I'll pick them up though I might end up pushing this into the next
merge window...

Christian