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=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 B4DEFC433DB for ; Fri, 8 Jan 2021 01:03:17 +0000 (UTC) Received: from lists.zx2c4.com (lists.zx2c4.com [165.227.139.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BABF02076E for ; Fri, 8 Jan 2021 01:03:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BABF02076E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=wireguard-bounces@lists.zx2c4.com Received: by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 7ffde028; Fri, 8 Jan 2021 01:03:14 +0000 (UTC) Received: from mail-lf1-x12e.google.com (mail-lf1-x12e.google.com [2a00:1450:4864:20::12e]) by lists.zx2c4.com (ZX2C4 Mail Server) with ESMTPS id 76fefe22 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Fri, 8 Jan 2021 01:03:12 +0000 (UTC) Received: by mail-lf1-x12e.google.com with SMTP id x20so18985048lfe.12 for ; Thu, 07 Jan 2021 17:03:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=6FAgd01oLjONpUSdzrjOz0khp0zDApEx5a0oh+aA2/M=; b=T8Vg5+ad11GIiPOln6aeEZzf6/ZLkdVFaSKxWjYwjGImAzjAZERO6ElXhtXt3WcwIp u6A16xbDKoIwIO1rNUrc8sdst5RjCAagMENbjSO/knI3PO2zjSnJX+2mtNR3ZUvjqGRw W53xcyUPpxCkmMshbfmpppy8mV9362p59mCV3zgsQwvOc+97PAmA/5Qlc/3XIcETClGJ kMweM7uerwdeTgjvZhvL7Uedp/MOrTrcHCS/4/fEPsFrIG0HYAzJPZuXrPy4PsT2OXPr ip9GsfFHkMejf1XZv/hM1arcx4MDI9IIOofqIineK1CfQBZxTInetndetv4ejXAsJ6vO nRgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=6FAgd01oLjONpUSdzrjOz0khp0zDApEx5a0oh+aA2/M=; b=K7kIjiPFy8F3w2K9Ep4+0ycT7fH1sGEUhBDVmNLB8N+Ettc8MmL5g+yEJyHJiBXsiC gL1Iv2DAMJa8fmcfsx17s+zpuwCEx9lzhXHkxnwzKlgEylXamj7VXDjAT8Wz6kxASylJ /ihm2DsvSFBsIHhA7k08hJy4ReK09M4h3iR5pbfHLxLo8WY/7iMe0Y6gxzAo5YMHMj3a ra6raTRC/SxPncQ+OPbxOELrziQW6/eNrvzT6GJCCaqzg7E+uj/Q3IxH56XJYZ8RCFBv RVKn17a9QjHKUQ1TJovsHTozLjA7IvXL8la1q0eofXUmL6a751m91HbIfo1uUHA3NXKm vwKQ== X-Gm-Message-State: AOAM530q/ZKYGcv6iR7p6Ukz60dXJC5rYqQUATOV+aONtYKpeaUOIKbB iR+bB8ZQU3kPrD50A2oG73Pg/H4hW9kbviHqaRA= X-Google-Smtp-Source: ABdhPJzVwT7mkUrvF39uEvzSiwXiGP60OKgSihu8YxUBg6NJDD7dYjqPiqGhVyJnu7ocznmnTZDcLLR9/zR4Pe/EluM= X-Received: by 2002:a2e:86d1:: with SMTP id n17mr432527ljj.120.1610067792278; Thu, 07 Jan 2021 17:03:12 -0800 (PST) MIME-Version: 1.0 References: <000000000000e13e2905b6e830bb@google.com> <0029bece-0f7e-4467-948d-b48af50e5bca@www.fastmail.com> In-Reply-To: <0029bece-0f7e-4467-948d-b48af50e5bca@www.fastmail.com> From: Phillip McMahon Date: Fri, 8 Jan 2021 02:02:40 +0100 Message-ID: Subject: Re: UBSAN: object-size-mismatch in wg_xmit To: Eric Light Cc: Corey Costello , WireGuard mailing list Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-BeenThere: wireguard@lists.zx2c4.com X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: wireguard-bounces@lists.zx2c4.com Sender: "WireGuard" I went and did it for you. You should have a confirmation email to respond to. Check your spam. On Fri, 8 Jan 2021 at 01:49, Eric Light wrote: > > Corey - have you tried unsubscribing at the unsubscribe page? https://li= sts.zx2c4.com/mailman/options/wireguard > > Hope this helps, > > E > > -------------------------------------------- > Q: Why is this email five sentences or less? > A: http://five.sentenc.es > > On Fri, 8 Jan 2021, at 13:34, Corey Costello wrote: > > Get me off this fucking list ffs. > > > > > > > > > On Jan 7, 2021, at 2:06 PM, Jeffrey Walton wrote= : > > > > > > On Thu, Jan 7, 2021 at 2:03 PM Jason A. Donenfeld w= rote: > > >> > > >> On Thu, Jan 7, 2021 at 1:22 PM Dmitry Vyukov wr= ote: > > >>> > > >>> On Mon, Dec 21, 2020 at 12:23 PM Jason A. Donenfeld wrote: > > >>>> > > >>>> ... > > >>> > > >>> These UBSAN checks were just enabled recently. > > >>> It's indeed super easy to trigger: 133083 VMs were crashed on this = already: > > >>> https://linkprotect.cudasvc.com/url?a=3Dhttps%3a%2f%2fsyzkaller.app= spot.com%2fbug%3fextid%3d8f90d005ab2d22342b6d&c=3DE,1,RVpgZsRUCGs2jKlumiMAM= npeOF4QdiW5h8GDIsBJPz-orFNwvwCXnceC9n5Bhr1h-G2EsU0tlC7N4QUpHuF6tIMI7tTnBoRj= Ao5tT-Bk9-Fhe8CppuOL4mqdkA,,&typo=3D1 > > >>> So it's one of the top crashers by now. > > >> > > >> Ahh, makes sense. So it is easily reproducible after all. > > >> > > >> You're still of the opinion that it's a false positive, right? I > > >> shouldn't spend more cycles on this? > > > > > > You might consider making a test build with -fno-lto in case LTO is > > > mucking things up. > > > > > > Google Posts Patches So The Linux Kernel Can Be LTO-Optimized By > > > Clang, https://linkprotect.cudasvc.com/url?a=3Dhttps%3a%2f%2fwww.phor= onix.com%2fscan.php%3fpage%3dnews_item%26px%3dLinux-Kernel-Clang-LTO-Patche= s&c=3DE,1,7u3-jWadklYo8ai_XrPNvjnu46LLAyg0hqsGIaMPaoQ5UxtcNM84jrHUgSg4VciXK= k9XVpwgyBwD85LbbW5_j195jSH6RrAej45I1kr_XfQ,&typo=3D1 > > > > > > Jeff > > > > --=20 Use this contact page to send me encrypted messages and files https://flowcrypt.com/me/phillipmcmahon P.S. Drowning in email? Try SaneBox and take back control: http://sanebox.com/t/old3m. I love it.