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Wherever a GSO packet can occur, and its length is used to fill the UDP header, use udp_set_len that assigns 0 if the length doesn't fit 16 bits, so that the packet can be properly parsed and segmented later, instead of having truncated length. Use udp_get_len in udp_validate_len to treat BIG TCP packets as valid. Signed-off-by: Alice Mikityanska <alice@isovalent.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Link: https://patch.msgid.link/20260710134242.216538-4-alice.kernel@fastmail.im Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>