From: Christian Brauner <christian.brauner@ubuntu.com>
To: Eugene Syromiatnikov <esyr@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Christian Brauner <christian@brauner.io>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>, Tejun Heo <tj@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"Dmitry V. Levin" <ldv@altlinux.org>
Subject: Re: [PATCH] clone3: add build-time CLONE_ARGS_SIZE_VER* validity checks
Date: Sun, 12 Apr 2020 23:24:22 +0200 [thread overview]
Message-ID: <20200412212422.2a4endxiqfavf2cr@wittgenstein> (raw)
In-Reply-To: <20200412202658.GA31499@asgard.redhat.com>
On Sun, Apr 12, 2020 at 10:26:58PM +0200, Eugene Syromiatnikov wrote:
> CLONE_ARGS_SIZE_VER* macros are defined explicitly and not via
> the offsets of the relevant struct clone_args fields, which makes
> it rather error-prone, so it probably makes sense to add some
> compile-time checks for them (including the one that breaks
> on struct clone_args extension as a reminder to add a relevant
> size macro and a similar check). Function copy_clone_args_from_user
> seems to be a good place for such checks.
>
> Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
Yeah, that seems like a good idea to me.
Thanks, will queue for rc2 unless I hear objections.
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
next prev parent reply other threads:[~2020-04-12 21:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-12 20:26 [PATCH] clone3: add build-time CLONE_ARGS_SIZE_VER* validity checks Eugene Syromiatnikov
2020-04-12 21:24 ` Christian Brauner [this message]
2020-04-15 12:38 ` Christian Brauner
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