From patchwork Wed Sep 15 12:21:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 512263 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8B8CC433F5 for ; Wed, 15 Sep 2021 12:23:51 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1F3D361350 for ; Wed, 15 Sep 2021 12:23:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1F3D361350 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 3DFF01848; Wed, 15 Sep 2021 14:22:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 3DFF01848 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1631708629; bh=ceqFAPubSS+hygLmtdljoG3COS76bbvIkyLSstU//PU=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=nYK6xD0cgyHonCnGvlybBic/goINlJxJ2Ms42QD0TMPB1awkDF3vSLK7ptOG40vnI T7vGBvATl8VB/rI0m9LZOdHi9S3j73mM0UEv5RUC2pGCyO4vJVuiYqC2IfAYD1UqTF 1w4Byb9tSDwtdE3kSGwALusisZOKdP5+bKK2yOG0= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3268DF804FA; Wed, 15 Sep 2021 14:21:46 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B4CD8F804E5; Wed, 15 Sep 2021 14:21:40 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 692E0F80132 for ; Wed, 15 Sep 2021 14:21:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 692E0F80132 X-IronPort-AV: E=McAfee;i="6200,9189,10107"; a="219117503" X-IronPort-AV: E=Sophos;i="5.85,295,1624345200"; d="scan'208";a="219117503" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Sep 2021 05:21:32 -0700 X-IronPort-AV: E=Sophos;i="5.85,295,1624345200"; d="scan'208";a="544901596" Received: from msavu-mobl1.ti.intel.com (HELO pujfalus-desk.ger.corp.intel.com) ([10.251.216.36]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Sep 2021 05:21:30 -0700 From: Peter Ujfalusi To: lgirdwood@gmail.com, broonie@kernel.org, pierre-louis.bossart@linux.intel.com Subject: [PATCH 05/12] ASoC: SOF: imx: imx8m: Bar index is only valid for IRAM and SRAM types Date: Wed, 15 Sep 2021 15:21:09 +0300 Message-Id: <20210915122116.18317-6-peter.ujfalusi@linux.intel.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210915122116.18317-1-peter.ujfalusi@linux.intel.com> References: <20210915122116.18317-1-peter.ujfalusi@linux.intel.com> MIME-Version: 1.0 Cc: guennadi.liakhovetski@linux.intel.com, alsa-devel@alsa-project.org, daniel.baluta@gmail.com, ranjani.sridharan@linux.intel.com, kai.vehmanen@linux.intel.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" i.MX8 only uses SOF_FW_BLK_TYPE_IRAM (1) and SOF_FW_BLK_TYPE_SRAM (3) bars, everything else is left as 0 in sdev->bar[] array. If a broken or purposefully crafted firmware image is loaded with other types of FW_BLK_TYPE then a kernel crash can be triggered. Make sure that only IRAM/SRAM type is converted to bar index. Fixes: afb93d716533d ("ASoC: SOF: imx: Add i.MX8M HW support") Signed-off-by: Peter Ujfalusi Reviewed-by: Daniel Baluta Reviewed-by: Ranjani Sridharan Reviewed-by: Guennadi Liakhovetski --- sound/soc/sof/imx/imx8m.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c index b5c739a5cbeb..be5ab9942fc8 100644 --- a/sound/soc/sof/imx/imx8m.c +++ b/sound/soc/sof/imx/imx8m.c @@ -228,7 +228,14 @@ static int imx8m_remove(struct snd_sof_dev *sdev) /* on i.MX8 there is 1 to 1 match between type and BAR idx */ static int imx8m_get_bar_index(struct snd_sof_dev *sdev, u32 type) { - return type; + /* Only IRAM and SRAM bars are valid */ + switch (type) { + case SOF_FW_BLK_TYPE_IRAM: + case SOF_FW_BLK_TYPE_SRAM: + return type; + default: + return -EINVAL; + } } static void imx8m_ipc_msg_data(struct snd_sof_dev *sdev,