linux-hardening - Re: [PATCH v2 3/3] module: Add compile-time check for embedded NUL characters

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Message-ID: <aUVIlvOSvobrdrKV@stanley.mountain>
Date: Fri, 19 Dec 2025 15:44:06 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Matthieu Baerts <matttbe@...nel.org>
Cc: Kees Cook <kees@...nel.org>, Rusty Russell <rusty@...tcorp.com.au>,
	Petr Pavlu <petr.pavlu@...e.com>,
	Daniel Gomez <da.gomez@...nel.org>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	linux-modules@...r.kernel.org,
	Hans Verkuil <hverkuil+cisco@...nel.org>,
	Malcolm Priestley <tvboxspy@...il.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil@...nel.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	Luis Chamberlain <mcgrof@...nel.org>, Chris Li <sparse@...isli.org>,
	linux-sparse@...r.kernel.org
Subject: Re: [PATCH v2 3/3] module: Add compile-time check for embedded NUL
 characters

On Fri, Dec 19, 2025 at 01:29:21PM +0100, Matthieu Baerts wrote:
> net/mptcp/crypto_test.c:72:1: error: bad integer constant expression
> net/mptcp/crypto_test.c:72:1: error: static assertion failed: "MODULE_INFO(license, ...) contains embedded NUL byte"
> net/mptcp/crypto_test.c:73:1: error: bad integer constant expression
> net/mptcp/crypto_test.c:73:1: error: static assertion failed: "MODULE_INFO(description, ...) contains embedded NUL byte"

There was a fix for that posted.  Let me ping them to see if anyone is
planning to send an actual patch.

https://lore.kernel.org/all/20251211175101.GA3405942@google.com/

regards
dan carpenter