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 61CD83016E1; Sat, 30 May 2026 17:13:09 +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=1780161190; cv=none; b=YsEdBNB0PcJDYLr49Ii4UV7d8Qa3tDNLrCJwLkctfKWwrG+kMgl9z1n5SkzDbJkdYG3GoCEcQoY6K7rDShFgVcXiXBUQA+GLFCREn9wESDfVWOhyqh0TOKxRaNK8eMXJuOeWO+xqpdFPVOzPu+8sJtEJ82mHB776/hQvvogGkfk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780161190; c=relaxed/simple; bh=OpXY245IjJzuWHfkHapUEtwJtvQWgPYE5T7iA6KV/Lo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RApXxc0TJ4eZ2yLV89bcMlnAbzM09BKPIDTcemvlWp9dDChTX2kH9eUS2+guA8xN3oClb/EW3uedGwphFX9Rxkx3ZAsno0ICVpYcAE6SH7dziCNo8eedoZ8D21YHytkZf7jAYSBfZQSjs4Az43yfxwlSPrRmlFSWcAVMI3zgeoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=n52+Ifjt; 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="n52+Ifjt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A536D1F00893; Sat, 30 May 2026 17:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780161189; bh=9lypXuy5PhH2GVgmk7o9J3K6ssd6uXxc5mPnvOHUkY4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=n52+IfjtCALNgBXmLC8FgWBeA46QtKOFUDSnb3CRhCiO3hjQ0CPqrTyMdoi6YQ7/2 JUHctyrdhxPIHiq8DyF/MsLpwi+C2iknJLPxAmP95GUqIB5RQ3wqUhIWjJCclvRJJp 01PTMQnCRknTaB5kB98hhEV7eEjOnqYb/+h46lcA= 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 6.1 534/969] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Sat, 30 May 2026 18:00:58 +0200 Message-ID: <20260530160315.114686119@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160300.485627683@linuxfoundation.org> References: <20260530160300.485627683@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-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 f04d183fe099f..bb8bad04fb47d 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