linux-kernel - Re: [PATCH v2 1/2] samples, selftests/seccomp: Zero out seccomp

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Message-ID: <20191228092533.wm6w3r7eyhif5pfi@wittgenstein>
Date:   Sat, 28 Dec 2019 10:25:34 +0100
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Sargun Dhillon <sargun@...gun.me>
Cc:     linux-kernel@...r.kernel.org, linux-api@...r.kernel.org,
        tycho@...ho.ws, jannh@...gle.com, keescook@...omium.org,
        cyphar@...har.com
Subject: Re: [PATCH v2 1/2] samples, selftests/seccomp: Zero out seccomp_notif

On Sat, Dec 28, 2019 at 01:48:39AM +0000, Sargun Dhillon wrote:
> The seccomp_notif structure should be zeroed out prior to calling the
> SECCOMP_IOCTL_NOTIF_RECV ioctl. Previously, the kernel did not check
> whether these structures were zeroed out or not, so these worked.
> 
> Signed-off-by: Sargun Dhillon <sargun@...gun.me>
> Cc: Kees Cook <keescook@...omium.org>

Can you please also add a test, that verifies that we catch garbage
values, please?