Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp9750640rwd; Wed, 21 Jun 2023 11:17:57 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ6jUHtoKeXGhKm5nFZ1EjQ3kGEWuCXfAUhC8d6TOmY/xRlFTGddobBFx+XIF6mNEMh3xca5 X-Received: by 2002:a05:6a20:a108:b0:116:fc1b:fa3b with SMTP id q8-20020a056a20a10800b00116fc1bfa3bmr13512642pzk.9.1687371476747; Wed, 21 Jun 2023 11:17:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1687371476; cv=none; d=google.com; s=arc-20160816; b=HXgo+7XD2BFjmovVzeL1RrLyCko6pWxfvpjq6EYNYBKwFfAN0U85at9PT8KgQDiwic 4FRo9XCIin1e7AyiegrRv4Ta8TF3yvsr5AIhQDkFJumrD8nvd7X0vllQaOZGIeq00jls c6OqnGCklpJbzKs5Z+T+MShu/clKp3R980jUXLyWDrSag/hm5kGXEaTKKcxuQ7a1Pqh/ rVfvjZL9l29nCWIllKjETKEPXAfSASGtuKFqb6RZE5jvNWRSe7KxTLuq1kZtH2g7q1fV 5kQJ6JioDrqXnesMjFe+qW1vK7lj6WQLS9KFtO67VcaqPRMeBBYVHJaNpBIC19G1yCkt PpvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=0mDUPFj11nuzbslsfyhT+92UBRubLuDHdsEFduMyK80=; b=TjiE/jpUAx/MhJy40fb7VYxvXpxVDsgFnWizC2np/W3C6ZuRyngpPjsZBuHhbipL42 kbq5nHfTw4uT2K5tgqpXVAi4IiFir2SAaG/XO9mFqCqTssGd6LOv7jjPmobgP99SnyIE jnjkQua0BqKBHTUNFLFUA+SuKYsNseV8sxsDy9qbTuu/mPFsRhieXX/2dN/V7G09VpOI oY4MamebEzm1eprZJhfOS+uWgRaeebh5tg0GSJmFKRpRZaNkcGCQbTcIb+4hAy+f2Yw3 IGF6mXzSBTX5W0K5pwizPPrVfBU3NLW7s7hodo8Dp0BlskAQ6Lwh4dWs3VDaJv8vXTwS iyYg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=n6bV3uQ7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id y78-20020a626451000000b0065addb172d1si1330688pfb.380.2023.06.21.11.17.43; Wed, 21 Jun 2023 11:17:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=n6bV3uQ7; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229544AbjFUSHR (ORCPT + 99 others); Wed, 21 Jun 2023 14:07:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229873AbjFUSHP (ORCPT ); Wed, 21 Jun 2023 14:07:15 -0400 Received: from mail-pl1-x634.google.com (mail-pl1-x634.google.com [IPv6:2607:f8b0:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4DD1A1 for ; Wed, 21 Jun 2023 11:07:13 -0700 (PDT) Received: by mail-pl1-x634.google.com with SMTP id d9443c01a7336-1b53b8465daso28937195ad.0 for ; Wed, 21 Jun 2023 11:07:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1687370833; x=1689962833; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=0mDUPFj11nuzbslsfyhT+92UBRubLuDHdsEFduMyK80=; b=n6bV3uQ7OgCZ/yga2+UJO5z5CEhWbBMkdYri0JPYVguITaSNOVbLW9WsaAsITk3kxw o9P4nrzM+Be5H+junB+qkqlf3w2eTTkCY+ocPEiXo3sUytB2VR3fTmPOysfgKzdVpA6p TvzhI7R/ox2t4j73CHoRD5wNkIxKRn1dsp5eY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687370833; x=1689962833; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=0mDUPFj11nuzbslsfyhT+92UBRubLuDHdsEFduMyK80=; b=Tq/wijL99TLXy2NSeKonc3UJYH4PYzJK26MO5OWEHqpD27gMhPFoOvyTFu8rMDT9qD pvXBvQJw7Ulsi6Mlc9R4WbuZG7lZm38PnD+e3PCKscg/F4WIawFVziWG4y5kNgCXfJdR zoVtjACRRdulmsw4oXRdCpKE9sZtTgQ3QgZZp+32u8pmiiZJiC0Q6+1dQU/n8szdzDiI eeZ+4jcDKITQiAsRcS0fDxMWQb/Lud3c4WQ1YccAWU88DU1aZ3pmrz0ETA8sDz3kaL0T 8cO2TSLpFqfo7dqRATgmEkbmoWMXWwf+ULZxgu9zGoFXCTsIne5SL0WjCf4ZhGroV0sN vMcg== X-Gm-Message-State: AC+VfDw13GN5gx2v5687MZEGqfstcVs904w55lNH5SE2XPPBPBD2H0vv KH4mdXrm/ITTCMEp1ncObIIxmag+z35HA0Aqo/Q= X-Received: by 2002:a17:903:11c6:b0:1b3:ea47:7972 with SMTP id q6-20020a17090311c600b001b3ea477972mr13653002plh.38.1687370833248; Wed, 21 Jun 2023 11:07:13 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id f3-20020a170902ce8300b001b3cac25f82sm3819234plg.139.2023.06.21.11.07.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jun 2023 11:07:12 -0700 (PDT) Date: Wed, 21 Jun 2023 11:07:12 -0700 From: Kees Cook To: Peter Zijlstra Cc: x86@kernel.org, alyssa.milburn@linux.intel.com, linux-kernel@vger.kernel.org, samitolvanen@google.com, jpoimboe@kernel.org, joao@overdrivepizza.com, tim.c.chen@linux.intel.com Subject: Re: [PATCH 2/2] x86/fineibt: Poison ENDBR at +0 Message-ID: <202306211107.26A6B76E@keescook> References: <20230615193546.949657149@infradead.org> <20230615193722.194131053@infradead.org> <202306201454.0A2E875F@keescook> <20230621081857.GG2046280@hirez.programming.kicks-ass.net> <20230621084802.GA2048237@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230621084802.GA2048237@hirez.programming.kicks-ass.net> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 21, 2023 at 10:48:02AM +0200, Peter Zijlstra wrote: > On Wed, Jun 21, 2023 at 10:18:57AM +0200, Peter Zijlstra wrote: > > (and I need to write a better Changelog). > > Updated changelog... LGTM! Thanks :) -- Kees Cook