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 ED20626738C; Sat, 30 May 2026 18:39:10 +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=1780166351; cv=none; b=AmHrvoo3c06RegxJ2gqMvZulq0coDNevQndfDcpamu3Mwv+Wqrr9EMbG9s7r2OcfW2rsrJhVjeAM4N5uMBnuASpCHEDC3zjtM6mOAAaiDkx8dsOYGmG4CQJAKmVOdj26hNlWCFp9PK892BCHk1avGLT0rXfG1mfSeXBkdw5Ivwo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780166351; c=relaxed/simple; bh=rH8kX/gYrU9QUBpiPzUZMQou67brqCJK8iX8FzPnq7M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MfFplLZ8Dj60BP6wQnqdCg0WuC3LMM4/jskky3X7fA5vbXWJYam0xZIWpoWTcX2WeTzrbZljYSLsX4OCwJXAjKS11UqMPgGdk5rLLZBWtEBVCANHtyC6OPwUyoYEoQ5ayMAqUc/DFiw6/HnT9R6cjiGzr2Uq1SN983L506BXq44= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=foG0s1UD; 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="foG0s1UD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E15E1F00893; Sat, 30 May 2026 18:39:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780166350; bh=SnupiFETsbCevHCsgLyOamsFu8qutY99afAjhk5OFXo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=foG0s1UDr090hyjosvi2t9KBk7bF05oJzVZgRld6/fls9HrwGunUnBK2ZP6eUQrf6 S6++AD7YPkDs0j9mvlnE8Qnh/W6Yph0e3qCoiTyZPNvjJ6q3FMV6Oh3U3clT+MSZfd Mikd1jf/s63rN1MIjnjIf3A9Ac7JYlv9ckM3P5GQ= 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 5.10 347/589] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Sat, 30 May 2026 18:03:48 +0200 Message-ID: <20260530160233.995900994@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160224.570625122@linuxfoundation.org> References: <20260530160224.570625122@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 5.10-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 6e9b9cc98284d..a267ca941d943 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