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 72ED23AB26B; Sat, 30 May 2026 18:03:52 +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=1780164233; cv=none; b=kWyFHezmOzC21O3y9zmRAIwHs6v1e9oZqA4RQW8wY3M4YD/CdQTmudYv8aaBq9UhxvD50AusmVYLEIjoelWsjOUzUi1pG28ZaWiZKPDnWH4V6ymqXAoLVLcDJDEDM0meX8hyONqpXO7lKwo1ytvmZuzhVznT9jwUuvPCkonYygI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780164233; c=relaxed/simple; bh=jsDbqPh+lKro2Wg7NRaa1/eVQIqSJ7q8lZ1QHSqynxg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rIpCRSnFqk/rYjl4EWzThYmhs6J96O7ZhMrrxYDbLeZgc0FSjkpTdzmUxLUBVrGnG09NOevm1uYKu/TQ3PGC/RVnF69gd2ZSOK4Vksne9dupuHK8AOYl5O8SvnGtqTKWLbe8bsUrNCrn/6D2JiKlnd+h5fy6PZ35wlPeGhefqmQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JLhq4NcC; 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="JLhq4NcC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B73381F00893; Sat, 30 May 2026 18:03:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780164232; bh=yX82XhA6UbnjlNPjyd3wd6TAbjGnl8+9C/7fKP133xs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JLhq4NcCJQoo8yXuuxedaMRTBk5HEBWB67C66IR1C795YqdO4e/4FVAUnyFrQCmZ5 I7oZGChsp7VnS7RAl2vkx0RqNUjIlkR9mjDEyIA5iudX/kmxLBAmW+HfY8YobpfzxQ a32/dUUX3qdsUFYTTISNovUTJ9XLdsTAAhZnEKCc= 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 5.15 464/776] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Sat, 30 May 2026 18:02:58 +0200 Message-ID: <20260530160252.349346072@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@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 5.15-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 792884006f6bc..c144f99927705 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