From patchwork Tue Feb 13 12:38:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 13555070 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 F26382EB12; Tue, 13 Feb 2024 12:38:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707827909; cv=none; b=jl2pA5YysU8z2Z7a8tvL9DQUXubEaybg3PBuvNgWEmJa6rXMWFhtzv2QeUl1V8dPJF5QPaJbDJYmSa6CPKYE7c3t9GFKTWdFOX2ivs2RZvrvEA3YzK86LKTC3Eb465+VCmfOBtzMWoEzjj4h+adE3rKy7ZwdlaZNgb9PVI79OBU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707827909; c=relaxed/simple; bh=1Li3WHJxxBd28UxYdFX2GoMG0GgTYRJL+I8HY3/mw2s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=tA/+lkcyqDX/8lFRjh4y27VnzTFsgwcdxU7/YdY07NjEF+hAGIHar/ZAoxMLjt9e3PYkKAx8LbUQHXB46hDaAl6YpRBwRn/ddpjBz78m/Tb7Ug98b/MdL6Rjn1eUu6IJnM6eufbMb0Z4oJqdvOc4ycqDPeh9kUBspxrzOeGCqOE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=SJpEnJvV; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="SJpEnJvV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1707827908; x=1739363908; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=1Li3WHJxxBd28UxYdFX2GoMG0GgTYRJL+I8HY3/mw2s=; b=SJpEnJvVrN5t65TywNkSwUohnSwI4kQxAZ4zegxNlYMYJukvIIZNMmlJ Jkjpwdne8Ja0Dr5QEqKLouwI3Wdl7KBmdxKKf63Hbyj0DuystDVaLe2Te XhOGFjM/GZ0BdFcTB8iW4V1eFMdq73AMJfWPkLSEnLpCDnaCRCedymp4S +xWwi/0teWOjXBnxXOnWR534yuRmEdgFpIFuWb3Z8vYiGmB6g1iQLRmL5 QrVTiampOaNgyRNfgzQpwyi1byBTDYB+l9zuF04gwWSH3cRTgDmIbJM99 9Krkg+C9WO+oruEpjs7B3j0P1yEzXu0jqCYw5VAY/wVosOScV2wcixI85 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10982"; a="12921878" X-IronPort-AV: E=Sophos;i="6.06,157,1705392000"; d="scan'208";a="12921878" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Feb 2024 04:38:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,157,1705392000"; d="scan'208";a="7456411" Received: from dcoroian-mobl.ger.corp.intel.com (HELO pujfalus-desk.ger.corp.intel.com) ([10.249.42.253]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Feb 2024 04:38:24 -0800 From: Peter Ujfalusi To: lgirdwood@gmail.com, broonie@kernel.org Cc: linux-sound@vger.kernel.org, pierre-louis.bossart@linux.intel.com, kai.vehmanen@linux.intel.com, ranjani.sridharan@linux.intel.com, timvp@google.com, cujomalainey@chromium.org, daniel.baluta@nxp.com, stable@vger.kernel.org Subject: [PATCH] ASoC: SOF: IPC3: fix message bounds on ipc ops Date: Tue, 13 Feb 2024 14:38:34 +0200 Message-ID: <20240213123834.4827-1-peter.ujfalusi@linux.intel.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Curtis Malainey commit 74ad8ed65121 ("ASoC: SOF: ipc3: Implement rx_msg IPC ops") introduced a new allocation before the upper bounds check in do_rx_work. As a result A DSP can cause bad allocations if spewing garbage. Fixes: 74ad8ed65121 ("ASoC: SOF: ipc3: Implement rx_msg IPC ops") Reported-by: Tim Van Patten Cc: stable@vger.kernel.org Signed-off-by: Curtis Malainey Reviewed-by: Péter Ujfalusi Reviewed-by: Daniel Baluta Reviewed-by: Pierre-Louis Bossart Signed-off-by: Peter Ujfalusi --- sound/soc/sof/ipc3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c index fb40378ad084..c03dd513fbff 100644 --- a/sound/soc/sof/ipc3.c +++ b/sound/soc/sof/ipc3.c @@ -1067,7 +1067,7 @@ static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev) return; } - if (hdr.size < sizeof(hdr)) { + if (hdr.size < sizeof(hdr) || hdr.size > SOF_IPC_MSG_MAX_SIZE) { dev_err(sdev->dev, "The received message size is invalid\n"); return; }