From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 17 Apr 2026 12:40:54 +0200 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 1wDgd3-00DAAz-3A for lore@lore.pengutronix.de; Fri, 17 Apr 2026 12:40:53 +0200 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 1wDgd3-0007iV-CO for lore@pengutronix.de; Fri, 17 Apr 2026 12:40:53 +0200 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=3goAktmSqA7IvyTFUwLbIroUVlxh+XRKGgizpCcwqxE=; b=Uurdrm4PijFc1WKW0ku0UVfQsF IWKgX/5fuhDzROnDlmkmY+59QNFS7LtkCd13vCzF0LTOxouQCz5CsZgiR3LowadoWBCrXZevwdDXS S9vfv4NI8fLpjnK+guiLF43tKHA7W2wP2oM1s0kCPHQALU/E/n2IKeduAJ7aoAEkVl1AcEWC0KOR5 0r19ywrWvNwQ31j9ZQUtSzbBDv2EaS2KaotfvAWT3ucsGTkZIcwqk4c4H81Vt8WyZAxaCMBm9Jfae Jve/Y5tdhpNfzfMFWWaYag3ZigIXaGl/I3MeYBKWwKMWBcDBQMmgTMYH79ShWLjTfdBQNPsjX1m8p 1FtvKJUQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wDgcf-00000003v06-2e6U; Fri, 17 Apr 2026 10:40:29 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wDgcY-00000003uy1-48DL for barebox@lists.infradead.org; Fri, 17 Apr 2026 10:40:26 +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 1wDgcX-0007S6-Ee; Fri, 17 Apr 2026 12:40:21 +0200 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 1wDgcX-005plq-0k; Fri, 17 Apr 2026 12:40:21 +0200 Received: from [::1] (helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1wDgcX-00000000euC-0iAy; Fri, 17 Apr 2026 12:40:21 +0200 From: Sascha Hauer To: BAREBOX , Sascha Hauer Cc: "Claude Opus 4.6" In-Reply-To: <20260402-net-eth-do-udp-v1-0-af5d9fd6beec@pengutronix.de> References: <20260402-net-eth-do-udp-v1-0-af5d9fd6beec@pengutronix.de> Message-Id: <177642242116.157093.4627407847590900281.b4-ty@pengutronix.de> Date: Fri, 17 Apr 2026 12:40:21 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260417_034023_039563_FAEF61CC X-CRM114-Status: UNSURE ( 5.58 ) 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 00/10] net: prevent buffer overflows in UDP packets 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, 02 Apr 2026 08:36:39 +0200, Sascha Hauer wrote: > Our UDP handlers all use a UDP packets length without checking if it > fits into the incoming ethernet frame. Create a net_eth_to_udp() helper > which does the bounds checking and use it throughout the code. > > Applied, thanks! [01/10] net: add net_eth_to_udp() helper for validated UDP extraction https://git.pengutronix.de/cgit/barebox/commit/?id=a5c8c5b28678 (link may not be stable) [02/10] fs: tftp: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=336a561b8276 (link may not be stable) [03/10] net: dhcp: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=590413b42fe3 (link may not be stable) [04/10] fs: nfs: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=3f3844baaae8 (link may not be stable) [05/10] net: dns: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=7e445fc4f390 (link may not be stable) [06/10] net: sntp: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=d650913f3a9f (link may not be stable) [07/10] net: netconsole: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=895ee90de389 (link may not be stable) [08/10] net: fastboot: use net_eth_to_udp() for packet parsing https://git.pengutronix.de/cgit/barebox/commit/?id=cbe8a28183d0 (link may not be stable) [09/10] net: fastboot: stop using net_eth_to_udp_payload() for PACKET_SIZE https://git.pengutronix.de/cgit/barebox/commit/?id=2d89ebc47f26 (link may not be stable) [10/10] net: remove unused net_eth_to_udp{hdr,_payload,len}() helpers https://git.pengutronix.de/cgit/barebox/commit/?id=bd46061883c4 (link may not be stable) Best regards, -- Sascha Hauer