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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 518C9C433F5 for ; Mon, 6 Dec 2021 16:24:42 +0000 (UTC) Received: by lists.zx2c4.com (OpenSMTPD) with ESMTP id fe6d29b2; Mon, 6 Dec 2021 16:24:40 +0000 (UTC) Received: from mail-wr1-x429.google.com (mail-wr1-x429.google.com [2a00:1450:4864:20::429]) by lists.zx2c4.com (OpenSMTPD) with ESMTPS id 83b80943 (TLSv1.3:AEAD-AES256-GCM-SHA384:256:NO) for ; Mon, 6 Dec 2021 16:24:38 +0000 (UTC) Received: by mail-wr1-x429.google.com with SMTP id a9so23538132wrr.8 for ; Mon, 06 Dec 2021 08:24:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=grsecurity.net; s=grsec; h=to:cc:references:from:subject:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=rY2w9EgFarGEC1/nbwHdHithQnweE1YfM8OQtKR/EVc=; b=X+F3x0jNyKrh0Vi3Q0in8WlBqKARiM6eFGK2qPLDdaj2nButH866Bp8AUm1UW1Bf0s /tKxlNVhFHpu4HBm4BsEJRMO30v3G1cgwaZKD4WsH57+6ulHIM1tmzId6p5ZLVkTGT0X pHvbatzhA4qGoiDgcUiVBrELvc+Wh01VKz3DSVhsCcgmk/0L9OlQOST+P1d5f8kRt/SK otpIQGxxGpEPelgjrGwFXPL+s7cUdsYqmWGtZZdUZQxark6uCm5G+J51KKu/IUW/cUf9 iHOL/+mTgEQ9ifHlCb74A19J+VKV4PrxbjFPow6DIEK3ZaquHOq5uefuP9Glt8faN2Al bZRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:to:cc:references:from:subject:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=rY2w9EgFarGEC1/nbwHdHithQnweE1YfM8OQtKR/EVc=; b=i8UX1ke9U0c4/r8fxmOZQUxMWrI+9FyzxQduyAhtcMgPaJ9pE9vMunjoP58vhCM7ts IVb1TO4g92UHjmsQPj5WEvNE/U2Ci2KhGpl68vg933xGW2ovx2Nrw6qRZHdTA3e0Fl1D jEsQnnzdy50XdeTjJGhsox9tCboPg0Cu0Zjn9MJKlmr/eSlih2UrJc6Zp6AlB129zWUi 04jvat0GK5ferY0CjmxM44lNXcmLkCOtpnZGGzamz4IL5rqrWp//iBdFNbQtXB41hRtX sZPc7L33YqwlRh7HCbs0Xy3s685AX+k5ZvZd/Q5IZwuauScTajdHwQoizSg9enhSjvfC y3QQ== X-Gm-Message-State: AOAM532gcXt94+CBDKXCg6+RD9grD5o3pa+r/VdsMnu1TM50JLI5ZsW6 TdODd48Wo4d8sZqa8wut5WKoIWNvAiEnhw== X-Google-Smtp-Source: ABdhPJxjAGjB/9W7T6qRLSB0q4M5TtQMmVOVz3n15e6XNuVt+u0Gjpm7xpn9LgA2ObXhwwGq4Yxs5w== X-Received: by 2002:a5d:4b06:: with SMTP id v6mr44431688wrq.194.1638807877972; Mon, 06 Dec 2021 08:24:37 -0800 (PST) Received: from [192.168.24.132] (pd9fe9a68.dip0.t-ipconnect.de. [217.254.154.104]) by smtp.gmail.com with ESMTPSA id j40sm11707871wms.16.2021.12.06.08.24.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Dec 2021 08:24:37 -0800 (PST) To: "Jason A. Donenfeld" Cc: WireGuard mailing list References: <20210706132714.8220-1-minipli@grsecurity.net> <3a2d41dc-effb-158c-4a52-d7eb282ecb7e@grsecurity.net> From: Mathias Krause Subject: Re: [PATCH 0/2] wireguard-linux-compat: grsecurity compat patches Message-ID: <5bcdecdb-fbc0-4714-895d-1b1e6a87287a@grsecurity.net> Date: Mon, 6 Dec 2021 17:24:35 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit 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" Am 06.12.21 um 15:48 schrieb Jason A. Donenfeld: > I couldn't repro with a new kernel either. Only these old ones. > > Here are some object files for the logs in the earlier message: > https://data.zx2c4.com/curve25519-miscompile-a87440f8-7d1e-4179-be83-c82b4636a448.tar.zst Just a heads-up, some of these seem to have been compiled with a recent gcc which might not be what was intended?: $ strings -fa curve25519-*.o | grep -i gcc curve25519-3.11.10.o: GCC: (GNU) 4.9.4 curve25519-3.12.74.o: GCC: (Gentoo 11.2.0 p1) 11.2.0 curve25519-3.14.79.o: GCC: (Gentoo 11.2.0 p1) 11.2.0 curve25519-3.15.10.o: GCC: (GNU) 4.9.4 curve25519-3.16.85.o: GCC: (Gentoo 11.2.0 p1) 11.2.0 curve25519-3.17.8.o: GCC: (GNU) 5.5.0 curve25519-3.19.8.o: GCC: (GNU) 5.5.0 curve25519-4.0.9.o: GCC: (GNU) 5.5.0 curve25519-4.5.7.o: GCC: (GNU) 6.5.0 curve25519-4.6.7.o: GCC: (GNU) 6.5.0 curve25519-4.7.10.o: GCC: (GNU) 6.5.0 curve25519-4.8.17.o: GCC: (GNU) 6.5.0 Anyhow, now I'm able to reproduce it myself. Was a PEBCAK config failure. I'll look into it and work on a fix! Thanks, Mathias