From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0104C433E0 for ; Wed, 1 Jul 2020 03:50:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 925B420663 for ; Wed, 1 Jul 2020 03:50:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726736AbgGADuW (ORCPT ); Tue, 30 Jun 2020 23:50:22 -0400 Received: from helcar.hmeau.com ([216.24.177.18]:35316 "EHLO fornost.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725862AbgGADuW (ORCPT ); Tue, 30 Jun 2020 23:50:22 -0400 Received: from gwarestrin.arnor.me.apana.org.au ([192.168.0.7]) by fornost.hmeau.com with smtp (Exim 4.92 #5 (Debian)) id 1jqTlG-0006Ov-BC; Wed, 01 Jul 2020 13:50:15 +1000 Received: by gwarestrin.arnor.me.apana.org.au (sSMTP sendmail emulation); Wed, 01 Jul 2020 13:50:14 +1000 Date: Wed, 1 Jul 2020 13:50:14 +1000 From: Herbert Xu To: Eric Dumazet Cc: Mathieu Desnoyers , David Miller , Linus Torvalds , LKML , netdev , Yuchung Cheng , Jonathan Rajotte-Julien Subject: Re: [regression] TCP_MD5SIG on established sockets Message-ID: <20200701035014.GA7384@gondor.apana.org.au> References: <20200701020211.GA6875@gondor.apana.org.au> <20200701022241.GA7167@gondor.apana.org.au> <20200701025843.GA7254@gondor.apana.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 30, 2020 at 08:36:51PM -0700, Eric Dumazet wrote: > > If I knew so many people were excited about TCP / MD5, I would have > posted all my patches on lkml ;) > > Without the smp_wmb() we would still need something to prevent KMSAN > from detecting that we read uninitialized bytes, > if key->keylen is increased. (initial content of key->key[] is garbage) > > Something like this : LGTM. Thanks, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt