From patchwork Thu Jul 8 17:30:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 1502577 X-Patchwork-Delegate: sr@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.a=rsa-sha256 header.s=default header.b=nS9r5HJj; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4GLNdZ31GFz9sWc for ; Fri, 9 Jul 2021 03:32:02 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 248B783243; Thu, 8 Jul 2021 19:31:05 +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="nS9r5HJj"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 76DD583229; Thu, 8 Jul 2021 19:30:52 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail.nic.cz (mail.nic.cz [IPv6:2001:1488:800:400::400]) (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 C2209831DC for ; Thu, 8 Jul 2021 19:30:38 +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 6B9851427DB; Thu, 8 Jul 2021 19:30:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1625765438; bh=JfKSxLxi2JaauQVSfGaau8x6UUoeXNJb7v6PENEDHsM=; h=From:To:Date; b=nS9r5HJjlJOxEBHGgLqlrSXrHPJM3hwC1I42AyUPXCqIqWzsFgHFvOMG56AzfwoBx c+waRV3cH9BUm02Fd2BMiMyHWM6N6ZllvUrEQQamFjv1OGL0oG0q6cUCZsBcYgaNHe ZEAzw/1wtocWKTAM41ve1lC1mczQEcEYcLyasArc= From: =?utf-8?q?Marek_Beh=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_Roh=C3=A1r?= , =?utf-8?q?Marek_Beh=C3=BAn?= Subject: [PATCH u-boot-mvebu 06/31] tools: kwbimage: Don't crash when binary file name does not contain '/' Date: Thu, 8 Jul 2021 19:30:07 +0200 Message-Id: <20210708173032.27999-7-marek.behun@nic.cz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210708173032.27999-1-marek.behun@nic.cz> References: <20210708173032.27999-1-marek.behun@nic.cz> MIME-Version: 1.0 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 In the case when the file name is specified relative to the current working directory, it does not contain '/' character and strrchr() returns NULL. The following strcmp() function then crashes on NULL pointer dereference. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese --- tools/kwbimage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/kwbimage.c b/tools/kwbimage.c index 44bf5ee026..c08fb678d4 100644 --- a/tools/kwbimage.c +++ b/tools/kwbimage.c @@ -1277,7 +1277,7 @@ static void *image_create_v1(size_t *imagesz, struct image_tool_params *params, if (e) { char *s = strrchr(e->binary.file, '/'); - if (strcmp(s, "/binary.0") == 0) + if (s && strcmp(s, "/binary.0") == 0) main_hdr->destaddr = cpu_to_le32(params->addr); }