linux-kernel - Re: [PATCH v2 5/9] selftests/landlock: Do not allocate memory in fixture data

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Message-ID: <202404290852.29E4B471@keescook>
Date: Mon, 29 Apr 2024 08:52:50 -0700
From: Kees Cook <keescook@...omium.org>
To: Mickaël Salaün <mic@...ikod.net>
Cc: Christian Brauner <brauner@...nel.org>,
	Jakub Kicinski <kuba@...nel.org>, Mark Brown <broonie@...nel.org>,
	Shengyu Li <shengyu.li.evgeny@...il.com>,
	Shuah Khan <shuah@...nel.org>,
	"David S . Miller" <davem@...emloft.net>,
	Günther Noack <gnoack@...gle.com>,
	Will Drewry <wad@...omium.org>,
	kernel test robot <oliver.sang@...el.com>,
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
	Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v2 5/9] selftests/landlock: Do not allocate memory in
 fixture data

On Mon, Apr 29, 2024 at 03:09:27PM +0200, Mickaël Salaün wrote:
> Do not allocate self->dir_path in the test process because this would
> not be visible in the FIXTURE_TEARDOWN() process when relying on
> fork()/clone3() instead of vfork().
> 
> This change is required for a following commit removing vfork() call to
> not break the layout3_fs.* test cases.
> 
> Cc: Günther Noack <gnoack@...gle.com>
> Cc: Kees Cook <keescook@...omium.org>
> Cc: Shuah Khan <skhan@...uxfoundation.org>
> Signed-off-by: Mickaël Salaün <mic@...ikod.net>

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

-- 
Kees Cook