From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 16E961E7660; Wed, 20 May 2026 16:42:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295331; cv=none; b=HtLuRoRWvFcozD8UnMZ3p2nMWuF9Ovo156vbzWeaWhwlSvAm0qY7ZTzvCuAY9VckvMYxhdukAS8bLd6InPOrd9W4nEqFr1Of4+RW+8I10ua5MvMgVv8PkE1LErnrS24qkEkrytajgQDXcTqkvimigkqk3/yjtRWblvGb81IrEUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779295331; c=relaxed/simple; bh=7RoB5AfLDxFuK9QmPoG25Chf+tJePcW9gf/DNEoVqkY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RW5oMqcivPcKIb7ktZODUKdosdpZqBPgoke4cLmMMKNZGFk1j+lo1pLG8RhWcTznEWHdDYVs3K83WpAlWVuRVxPaaizmxy9O0mhQvWMBGFl7S8Ej6Cnwo2xWOoavYwmmz5bSbIVqlDUP1rxGIiNRoL87BGPGtX61AaghajyY3Pc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yqKd3kMT; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="yqKd3kMT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B2731F000E9; Wed, 20 May 2026 16:42:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779295330; bh=Fqr3DEAvadUDrhn8uC8gahmj8SQe9aqX/83tGszydcs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=yqKd3kMTyBIvcgSnTscRpmnbTIHzcz9F62frVtSApji7tGJhNUxp/QrO3jm1U1QQG lIjNY3SalWl0EJpy9hvNTY2XClQ225x8hyzlM31+GZmHRDrq3u/fmIsEHTeFTYzZPL 1PRUlHGRNh7tTCIkxy8CxnsCergmsW+K/wJ+dOiw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Shengjiu Wang , Mark Brown , Sasha Levin Subject: [PATCH 7.0 0377/1146] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Wed, 20 May 2026 18:10:27 +0200 Message-ID: <20260520162156.732465338@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162148.390695140@linuxfoundation.org> References: <20260520162148.390695140@linuxfoundation.org> User-Agent: quilt/0.69 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 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Shengjiu Wang [ Upstream commit 00541b86fb578d4949cfdd6aff1f82d43fcf07af ] Add check of input value's range in fsl_easrc_iec958_put_bits(), otherwise the wrong value may be written from user space. Fixes: 955ac624058f ("ASoC: fsl_easrc: Add EASRC ASoC CPU DAI drivers") Signed-off-by: Shengjiu Wang Link: https://patch.msgid.link/20260401094226.2900532-10-shengjiu.wang@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/fsl/fsl_easrc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c index 599e439b359a9..f48e43a0edcfc 100644 --- a/sound/soc/fsl/fsl_easrc.c +++ b/sound/soc/fsl/fsl_easrc.c @@ -54,6 +54,9 @@ static int fsl_easrc_iec958_put_bits(struct snd_kcontrol *kcontrol, unsigned int regval = ucontrol->value.integer.value[0]; int ret; + if (regval < EASRC_WIDTH_16_BIT || regval > EASRC_WIDTH_24_BIT) + return -EINVAL; + ret = (easrc_priv->bps_iec958[mc->regbase] != regval); easrc_priv->bps_iec958[mc->regbase] = regval; -- 2.53.0