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 0340A3FBEC5; Wed, 20 May 2026 18:35:12 +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=1779302113; cv=none; b=FEKbGNEHhwMl9e5WAaSvTfRfInJm3SgFeo+7Oytcfmjf6aqd4q8mqXOlZS1zaZyELf6mvXV1JJHJ34vxDMpSfksgROqdBHSx7i3cR9869YgaYbdw8ORYrKRUVQn5rFwFho8JBjNFyKBINRs0wbYkzvJfAEeY1vcvFcjQVzZPXDs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779302113; c=relaxed/simple; bh=qiktoII08QXeTULmORFUpPEkzfn1LLkPzmoXx4Rx2kc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Sqc69YUSrlgnuAtKU9pMb6eEqjk/jUXzlUqhZLpyr28bVAFyqGbJy56TrWQe8+kt7tsV/J9+/SQ/mFtrBbw639kTSAY0hQ3sXirrHHqxhTzH2qjJMufFhjln//FAveZyHPGFfZzgfd2tGyTWAyWHFU1BEejM2EV+IlXPVfH78dA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TqjGIdJg; 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="TqjGIdJg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 688F91F000E9; Wed, 20 May 2026 18:35:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779302111; bh=Q8Y9XYa/xgTIszUxXVWBCUkSZXRlNmCCPy81eu103Po=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=TqjGIdJgVEnshko2P98ZeNOKjj6HcfWtxlzgP1T8ILwI+jWb3QJFlV4R1XSwf23dw dcSIZJPAbFae9XIgjuqXHA00LvBCEpeLqpadIMMZ2nGYJ/mLSQAswaC7vj5Y4NuxXi 7yIz3ZFIMvAxTcoqPn35dYe40JCl7ez6XLx590Jk= 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 6.6 143/508] ASoC: fsl_easrc: Check the variable range in fsl_easrc_iec958_put_bits() Date: Wed, 20 May 2026 18:19:26 +0200 Message-ID: <20260520162101.729581178@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162058.573354582@linuxfoundation.org> References: <20260520162058.573354582@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 6.6-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 c78abf7698e0f..48d7a3e109129 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