From: Kees Cook <keescook@chromium.org>
To: Sargun Dhillon <sargun@sargun.me>
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
Jann Horn <jannh@google.com>,
Christian Brauner <christian.brauner@ubuntu.com>,
Aleksa Sarai <cyphar@cyphar.com>, Tycho Andersen <tycho@tycho.ws>
Subject: Re: [PATCH v3 2/3] seccomp: Check that seccomp_notif is zeroed out by the user
Date: Mon, 30 Dec 2019 10:29:56 -0800 [thread overview]
Message-ID: <201912301029.E9739655@keescook> (raw)
In-Reply-To: <20191229062451.9467-2-sargun@sargun.me>
On Sat, Dec 28, 2019 at 10:24:50PM -0800, Sargun Dhillon wrote:
> This patch is a small change in enforcement of the uapi for
> SECCOMP_IOCTL_NOTIF_RECV ioctl. Specifically, the datastructure which
> is passed (seccomp_notif) must be zeroed out. Previously any of its
> members could be set to nonsense values, and we would ignore it.
>
> This ensures all fields are set to their zero value.
>
> Signed-off-by: Sargun Dhillon <sargun@sargun.me>
> Cc: Kees Cook <keescook@chromium.org>
> Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
> Reviewed-by: Aleksa Sarai <cyphar@cyphar.com>
> Acked-by: Tycho Andersen <tycho@tycho.ws>
Applied!
--
Kees Cook
next prev parent reply other threads:[~2019-12-30 18:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-29 6:24 [PATCH v3 1/3] samples, selftests/seccomp: Zero out seccomp_notif Sargun Dhillon
2019-12-29 6:24 ` [PATCH v3 2/3] seccomp: Check that seccomp_notif is zeroed out by the user Sargun Dhillon
2019-12-30 18:29 ` Kees Cook [this message]
2019-12-29 6:24 ` [PATCH v3 3/3] selftests/seccomp: Test kernel catches garbage on SECCOMP_IOCTL_NOTIF_RECV Sargun Dhillon
2019-12-29 17:14 ` Christian Brauner
2019-12-29 19:06 ` Sargun Dhillon
2019-12-29 19:43 ` Christian Brauner
2019-12-29 23:42 ` Sargun Dhillon
2019-12-30 18:29 ` Kees Cook
2019-12-29 16:11 ` [PATCH v3 1/3] samples, selftests/seccomp: Zero out seccomp_notif Christian Brauner
2019-12-30 18:29 ` Kees Cook
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