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DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: ZcS/Gdoy3/9qMDavemqOwzYPmW49xrCGQbPQ9Yl+S+W/kh9czYvioNhZgt9XnIDn6ey6MwhYWSljf0wG+/PO1pxV3mM24FWOq4liJfwsHeytgh5YNFGmx4qSpoYgONjGj2jEJMuM0MkDvzemEpR1cO7VlkB8KxeN2Qbduns3z3vtfnXuicVCHCkvhfcBUYclGkChskZ2firy0rUwr+TsxbueNk9uKqXoNKqdcU6RhYYSNcv+CrZsvaqnP/IyxjcGW0cIyLkN9rBhpfcVXmlSpQ1dBix2xrmRNWtM/2gShhVPhWU2Nf0/uMfNosY257gg5RbByCdUD0XvhyL72FoqgFzZz7uztrZFHKYofCka6RKmqHIMBqEt8ejvNCOf/Mv7GXl6aQWqO8kO/JRHZFHlWiZbCu6kR90so4HeoN+2yHck/CJ3JEX8L+aPRG0EJSTj X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Sep 2026 13:18:41.4168 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d77c58be-88ce-4aed-3e4b-08df100732f7 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[4.158.2.129]; Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: MAD0EPF000008B2.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR08MB388410 X-BeenThere: u-boot@lists.u-boot-project.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.u-boot-project.org On Fri, 21 Aug 2026 02:07:43 -0500, Esteban Alba wrote: > net_ip6_handler() checks the received length only against IP6_HDR_SIZE and > then uses length fields from the packet without checking them. The checksum > is computed over payload_len, but the UDP handler length comes from > udp_len. A sender can keep payload_len correct so the checksum still > validates and set udp_len larger than the frame. A handler that trusts that > length then reads or writes past the receive buffer. The DHCPv6 client > copies the declared number of bytes and can be made to write past the > packet buffer from a single link-local ADVERTISE. > > [...] Applied to u-boot-net branch for-main, thanks! [1/1] net: net6: validate IPv6 payload and transport lengths on receive commit: 80215cdacd2acfe92152344e5269461446aa80ff Best regards, -- Jerome Forissier