From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 25 Nov 2024 11:24:27 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFWGZ-000A8z-1H for lore@lore.pengutronix.de; Mon, 25 Nov 2024 11:24:27 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFWGZ-0000FQ-DK for lore@pengutronix.de; Mon, 25 Nov 2024 11:24:27 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Date:Message-Id:Subject:References:In-Reply-To:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=idM7O+xIuWzhsklchlwdOKzK5zzYc33dGHgXrW/JesI=; b=pvGP7ppu11yFlpH3Zc+vdDK3AH d7Pftz5juPuImpJqIn9Tk+7J6DPbZusZ/p8UhRFZDohq4aMhUM7LpEHAnbdXFdkIPzrmj5DE3R9OR 1PltMlSNQ2M0WjjZ1sVVhRzKro5L0/YZH9oU4GRBc1Jmyv+AK8qnDtu1sIHUiWrCopBBfIm9W5UQH 9yatGiwFJCakU+eoW92iZJaYvaT1wmDcUV1IChSUq3vkyiWLZPx/KGDTQvLknwo2R+97Zerv+NcOP av5/HH1Q9+tSBLLA3qFBq6NeB2d+r4Mzz9Bo2Rjfl0Pj4LGO3R1GvwEHqt/RxrmFrAkP0gOVgIMS4 5Jsn+Aiw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tFWGA-00000007kb5-3Iaa; Mon, 25 Nov 2024 10:24:02 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tFWFs-00000007kZ8-3WTa for barebox@lists.infradead.org; Mon, 25 Nov 2024 10:23:46 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tFWFr-000078-O9; Mon, 25 Nov 2024 11:23:43 +0100 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tFWFq-0003z6-2X; Mon, 25 Nov 2024 11:23:43 +0100 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1tFWFr-000oLu-1b; Mon, 25 Nov 2024 11:23:43 +0100 From: Sascha Hauer To: Abdelrahman Youssef Cc: barebox@lists.infradead.org In-Reply-To: <20241114155115.594121-1-abdelrahmanyossef12@gmail.com> References: <20241114155115.594121-1-abdelrahmanyossef12@gmail.com> Message-Id: <173253022349.193531.17281595892803170911.b4-ty@pengutronix.de> Date: Mon, 25 Nov 2024 11:23:43 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.12.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241125_022344_877432_57405D2C X-CRM114-Status: UNSURE ( 8.22 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH v4] of: fdt: fix possible overflow during parsing of fdt X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Thu, 14 Nov 2024 17:51:14 +0200, Abdelrahman Youssef wrote: > While fuzzing, the name marked by FDT_BEGIN_NODE sometimes extends beyond > the struct block area, causing a heap-overflow. > > Since `maxlen` is an unsigned integer representing the length of name, > It can be negative, so it overflows to large numbers, Causing strnlen() > to overflow. > > [...] Applied, thanks! [1/1] of: fdt: fix possible overflow during parsing of fdt https://git.pengutronix.de/cgit/barebox/commit/?id=7a3cb7e6fd63 (link may not be stable) Best regards, -- Sascha Hauer