From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 78A5B1848; Sat, 13 Jan 2024 09:57:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="CgwU9zTz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0DB2C433C7; Sat, 13 Jan 2024 09:57:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1705139862; bh=y2ml15tHxKk2gWgDtuMuYh9Y/S7/9pRldJZLEIw4tSs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CgwU9zTzrstT45Eu+t8lXNwL1uZI8CoZvfwMBpiqjukFFXvLMkRUM85XKeLsf5CdP j05oz8d2MKlD/SwzuqDz7c4QRdC5sikrYiZ/h1cvvXcF47uEKlg2WUzoB/vNCNTy+m DVeDIw0GjhgH+L/Jbl2cem0KqCc8VwpLqDaRr++0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mark Brown , Sasha Levin Subject: [PATCH 5.10 17/43] ASoC: meson: g12a-toacodec: Validate written enum values Date: Sat, 13 Jan 2024 10:49:56 +0100 Message-ID: <20240113094207.469141037@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240113094206.930684111@linuxfoundation.org> References: <20240113094206.930684111@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mark Brown [ Upstream commit 3150b70e944ead909260285dfb5707d0bedcf87b ] When writing to an enum we need to verify that the value written is valid for the enumeration, the helper function snd_soc_item_enum_to_val() doesn't do it since it needs to return an unsigned (and in any case we'd need to check the return value). Fixes: af2618a2eee8 ("ASoC: meson: g12a: add internal DAC glue driver") Signed-off-by: Mark Brown Link: https://lore.kernel.org/r/20240103-meson-enum-val-v1-1-424af7a8fb91@kernel.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/meson/g12a-toacodec.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/meson/g12a-toacodec.c b/sound/soc/meson/g12a-toacodec.c index 9339fabccb796..0938f590de226 100644 --- a/sound/soc/meson/g12a-toacodec.c +++ b/sound/soc/meson/g12a-toacodec.c @@ -46,6 +46,9 @@ static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol, struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; unsigned int mux, changed; + if (ucontrol->value.enumerated.item[0] >= e->items) + return -EINVAL; + mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]); changed = snd_soc_component_test_bits(component, e->reg, CTRL0_DAT_SEL, -- 2.43.0