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Date:   Mon, 29 Jul 2019 09:31:23 -0700
From:   Kees Cook <keescook@chromium.org>
To:     Christian Brauner <christian@brauner.io>
Cc:     linux-kernel@vger.kernel.org, oleg@redhat.com,
        torvalds@linux-foundation.org, arnd@arndb.de,
        ebiederm@xmission.com, joel@joelfernandes.org, tglx@linutronix.de,
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        luto@kernel.org, akpm@linux-foundation.org, cyphar@cyphar.com,
        viro@zeniv.linux.org.uk, kernel-team@android.com
Subject: Re: [PATCH v3 2/2] pidfd: add pidfd_wait tests
Message-ID: <201907290929.09B5189@keescook>
References: <20190727222229.6516-1-christian@brauner.io>
 <20190727222229.6516-3-christian@brauner.io>
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On Sun, Jul 28, 2019 at 12:22:30AM +0200, Christian Brauner wrote:
> Add tests for pidfd_wait() and CLONE_WAIT_PID:
> - test that waitid(P_PIDFD) can wait on a pidfd
> - test that waitid(P_PIDFD) can wait on a pidfd and return siginfo_t
> - test that waitid(P_PIDFD) works with WEXITED
> - test that waitid(P_PIDFD) works with WSTOPPED
> - test that waitid(P_PIDFD) works with WUNTRACED
> - test that waitid(P_PIDFD) works with WCONTINUED
> - test that waitid(P_PIDFD) works with WNOWAIT
> - test that waitid(P_PIDFD)works with WNOHANG

Reviewed-by: Kees Cook <keescook@chromium.org>

This all looks good to me! :) One note that doesn't apply to this patch
in particular, but might be nice to add (as I didn't see in the existing
tests) was testing for pathological conditions: passing in /dev/zero for
the pidfd, etc. (Maybe I missed those?)

-- 
Kees Cook