From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.netfilter.org (mail.netfilter.org [217.70.190.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8A963BD23F for ; Wed, 11 Mar 2026 09:12:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.190.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773220364; cv=none; b=rAVigwzNWrs7hAgEUWlqkOmetQuRRycYNAq1cWyD7opAtri5MXmG72Ia+BSLCVubp8MRQIpZrSnYfPsOJ/Y4jCG5G+T/kEFw0vJi3CxgfUFrDwHwHOoSlIkdd0yZ4QlDdY3i9q4XcVzrFw7W22xrBNNBVIJYdMhe4PyZCOWQhl4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773220364; c=relaxed/simple; bh=1qL+ZB3twIWgKrOc6B7UuB8dAyWmI/4f9rwdw3qh9Ok=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PT1YrupARBDRjveGcyUh6C+glSzG0mfsaRpOqW6lB0R4B+6e8qLYXYvvX+M05iZY0MxU11MTmLC6la0euYRLoPtWCImXb/3K8vmpeVxLndmGpyTuHfNhyRYSH4c+AsbsiOhja1KUd3VeSAOR7kpekKExfOXCWWsDRDVww3XuLYI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org; spf=pass smtp.mailfrom=netfilter.org; dkim=pass (2048-bit key) header.d=netfilter.org header.i=@netfilter.org header.b=L0nnVXxL; arc=none smtp.client-ip=217.70.190.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=netfilter.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=netfilter.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=netfilter.org header.i=@netfilter.org header.b="L0nnVXxL" Received: from netfilter.org (mail-agni [217.70.190.124]) by mail.netfilter.org (Postfix) with UTF8SMTPSA id E9A18602B4; Wed, 11 Mar 2026 10:12:31 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netfilter.org; s=2025; t=1773220352; bh=ORXT5U9Rt/rxMTh3+qsXYHTaJU5djFrlBAb0GocM/C0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=L0nnVXxLEHQgH5oZuT4nrtMAZvfuLGtyFhYFLVkdIGI+0mEiUN9S8UvfIJMB6MyM0 DqywGLImMhrQ38qlKl4CTQAKkDScTPVI6/JFMF/4k2GsCtKQuuByr4rXOZV2IhwJHl kdiDIKsdBoWk1lQGSrN6G7VUc5HhdJ7Y0kvTFDFvdB3cuk6SFv28zLIz5VC5F69ww2 +TarjIYzcrS2UOkEzrQ1BhZ3tqdSN9xhS8+3T/+KoesxwBkPHTBfMPYw9ghFEwxy9J UUaln1K9lVoc1dS9Jrda5WmGjGoGfhQeniLomtzEkVe4GfQcG9lbTbya6q/dBqBaEj PIUZDz1ftLSCA== Date: Wed, 11 Mar 2026 10:12:29 +0100 From: Pablo Neira Ayuso To: =?utf-8?B?5L6v5pyL5pyL?= Cc: netfilter-devel@vger.kernel.org Subject: Re: [BUG] libnftnl: missing length validation in Geneve tunnel option handling Message-ID: References: <7a6e072d.57068.19cda8a76e5.Coremail.pengpeng@iscas.ac.cn> Precedence: bulk X-Mailing-List: netfilter-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <7a6e072d.57068.19cda8a76e5.Coremail.pengpeng@iscas.ac.cn> Hi, On Wed, Mar 11, 2026 at 09:37:13AM +0800, 侯朋朋 wrote: > Hi netfilter developers, > > I would like to report two length-validation issues in libnftnl, both in the Geneve tunnel option handling in src/obj/tunnel.c. > These appear to be memory-safety bugs caused by missing bounds checks in fixed-size destinations. Please, send patches. That is the best way you can contribute to a FOSS community-based project like this one. Thanks.