linux-kernel - Re: [PATCH 3/3] binderfs_test: switch from /dev to /tmp as mountpoint

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Message-ID: <20200313125523.f5yfeyslodp4b7vx@wittgenstein>
Date:   Fri, 13 Mar 2020 13:55:23 +0100
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Todd Kjos <tkjos@...roid.com>, ard.biesheuvel@...aro.org,
        ardb@...nel.org, john.stultz@...aro.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        naresh.kamboju@...aro.org, shuah@...nel.org,
        Arve Hjønnevåg <arve@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>, hridya@...gle.com,
        kernel-team@...roid.com
Subject: Re: [PATCH 3/3] binderfs_test: switch from /dev to /tmp as mountpoint

On Thu, Mar 12, 2020 at 04:54:25PM -0700, Kees Cook wrote:
> On Thu, Mar 12, 2020 at 02:15:31PM +0100, Christian Brauner wrote:
> > Unprivileged users will be able to create directories in there. The
> > unprivileged test for /dev wouldn't have worked on most systems.
> > 
> > Signed-off-by: Christian Brauner <christian.brauner@...ntu.com>
> 
> Seems good. (Though would a dynamic location be better?
> mkstemp()-style?)

Yeah, when I originally wrote binderfs that was really more of a
test-stub than anything else. I'll see if I can switch to something less
hard-coded. :)