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From: Charles Keepax <ckeepax@opensource.cirrus.com>
To: Kees Cook <kees@kernel.org>
Cc: "Liam Girdwood" <lgirdwood@gmail.com>,
	"Kees Cook" <kees+treewide@kernel.org>,
	"Mark Brown" <broonie@kernel.org>,
	"Jaroslav Kysela" <perex@perex.cz>,
	"Takashi Iwai" <tiwai@suse.com>,
	"Kuninori Morimoto" <kuninori.morimoto.gx@renesas.com>,
	"Ernest Van Hoecke" <ernest.vanhoecke@toradex.com>,
	"Francesco Dolcini" <francesco.dolcini@toradex.com>,
	"Andrew Davis" <afd@ti.com>,
	patches@opensource.cirrus.com, linux-sound@vger.kernel.org,
	"Uwe Kleine-König (The Capable Hub)"
	<u.kleine-koenig@baylibre.com>,
	linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] ASoC: codecs: wm8904: Add const to drc_texts allocation type
Date: Fri, 18 Sep 2026 15:49:39 +0100	[thread overview]
Message-ID: <aq1Pg6kHHC/YwS9M@opensource.cirrus.com> (raw)
In-Reply-To: <20260917211042.i.810-kees@kernel.org>

On Thu, Sep 17, 2026 at 02:10:43PM -0700, Kees Cook wrote:
> From: Kees Cook <kees+treewide@kernel.org>
> 
> In preparation for converting the kmalloc family of allocators to the
> type-aware kmalloc_obj family, we need to make sure that the returned
> type from the allocation matches the type of the variable being
> assigned. (The kmalloc family returns "void *", which can be implicitly
> cast to any pointer type.)
> 
> The assigned type is "const char **", but the converted allocation type
> would be "char **", which is the same type without the const qualifier.
> As there is no general way to safely add const qualifiers, take the size
> from the assignment target instead. No change in allocation size
> results.
> 
> Build tested ARCH=x86_64 allmodconfig with GCC 16.2.0:
> sound/soc/codecs/wm8904.o
> 
> Assisted-by: LLM coccinelle
> Signed-off-by: Kees Cook <kees+treewide@kernel.org>
> ---

Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>

Thanks,
Charles

  reply	other threads:[~2026-09-18 14:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-17 21:10 Kees Cook
2026-09-18 14:49 ` Charles Keepax [this message]
2026-09-18 16:49 ` Mark Brown

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