From mboxrd@z Thu Jan 1 00:00:00 1970 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 5812BC07E9D for ; Mon, 19 Jul 2021 12:26:27 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB27D61073 for ; Mon, 19 Jul 2021 12:26:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB27D61073 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nic.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 123CD82DA7; Mon, 19 Jul 2021 14:23:23 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.b="vrVZJW+T"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 6361482C91; Mon, 19 Jul 2021 14:22:26 +0200 (CEST) Received: from mail.nic.cz (lists.nic.cz [217.31.204.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id AF5F582C6B for ; Mon, 19 Jul 2021 14:22:16 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=marek.behun@nic.cz Received: from dellmb.labs.office.nic.cz (unknown [IPv6:2001:1488:fffe:6:8747:7254:5571:3010]) by mail.nic.cz (Postfix) with ESMTPSA id 36E1B140431; Mon, 19 Jul 2021 14:22:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1626697336; bh=Pgv+eXskFNQBBjh07TcJwZ6JcyX/5fJgFeBiF92uswU=; h=From:To:Date; b=vrVZJW+TnT88ylrB4USgOPrTYlE8hSwoNjAxPkdMgmuC8bQD78affISzRlS29pqIh bR7h1EWaAoSlqn+GZiveJ4JHhbPvq3MLVtaNM3BguaexK/LyGAgdVELcHcMr3C/NtE UOSkSRIztxVf2poOkOGb8hEDOgmPKHHfDcq5zNas= From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: u-boot@lists.denx.de, Chris Packham , Stefan Roese , Baruch Siach , Dirk Eibach , Chris Packham Cc: Dennis Gilmore , Mario Six , Jon Nettleton , =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH u-boot-mvebu v2 27/41] tools: kwboot: Check for v1 header size Date: Mon, 19 Jul 2021 14:20:50 +0200 Message-Id: <20210719122104.29698-28-marek.behun@nic.cz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210719122104.29698-1-marek.behun@nic.cz> References: <20210719122104.29698-1-marek.behun@nic.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean From: Pali Rohár Too small invalid headers may cause kwboot to crash. Check for header size of v1 images. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese Reviewed-by: Chris Packham Tested-by: Chris Packham --- tools/kwboot.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/tools/kwboot.c b/tools/kwboot.c index c0ac4ce19e..1d32c1b7ad 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -645,6 +645,11 @@ kwboot_img_patch_hdr(void *img, size_t size) else hdrsz = KWBHEADER_V1_SIZE(hdr); + if (size < hdrsz) { + errno = EINVAL; + goto out; + } + csum = kwboot_img_csum8(hdr, hdrsz) - hdr->checksum; if (csum != hdr->checksum) { errno = EINVAL; -- 2.31.1