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 D9CEF3DC4DA; Wed, 20 May 2026 18:08:42 +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=1779300523; cv=none; b=Ty9qvPS+DBviPiYRE7124ERMCbVJJLVpI9NyCINj5OWeVZbfJw3Y+ltpatrdQhIXJIdRvfghi0K5C3qbOVldHAYgf84kRoZaAV3v1fUZtftmfO5oWzHj7Kw6xd+8pOzh1HA3/Vn1/7yy8oj2BTEfKFEGm8Oexy5xxp7tLvC3jcA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779300523; c=relaxed/simple; bh=OwH2UU1dHDXMVTAHJAjRgHytPjY+IMgkdBX9DcrQvaM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UUerYHcfb8K/Gh2Ab+VAFXuxxqvh0TFgtc4PgTFaLAMPB5dmzkKVdRYjnEppPqpp5xtG1pp3adpkaX3KrSAYiaJgVRUaBz41hwJ9MgmMhx1ao88pb8KmOTHiWu3kGB0fk35/VOWRzLWB0s5krdXU8Ptj3YqpoqCK8yGP9CidF4A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MwHK9uvz; 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="MwHK9uvz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A0191F000E9; Wed, 20 May 2026 18:08:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779300522; bh=7nIApO0SBkvQ/D9H2iX1qwcsKxs1bFO5BtzoytZ9zsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=MwHK9uvz+BiA+E7tl/Km732uhrjWJdBfq983c1LT/Gf6ZcCewAN3jDgB9xvBOGjvB 0KX/1vpxVMfGEgIzWrmogC67d7CVAqmss2LJObmtOhwDyUuWx+D6ymbJstKm67mL+s DcCtiU5N+CwZoGvBW0gC17coFg2Ls02mZy9P42/A= 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 6.12 205/666] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Wed, 20 May 2026 18:16:56 +0200 Message-ID: <20260520162115.650302265@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162111.222830634@linuxfoundation.org> References: <20260520162111.222830634@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 6.12-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 5461a8b44a097..0f8c5210e358e 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