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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64441C3DA6E for ; Wed, 10 Jan 2024 05:10:16 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8E4838D0002; Wed, 10 Jan 2024 00:10:15 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 894D68D0001; Wed, 10 Jan 2024 00:10:15 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 75CC08D0002; Wed, 10 Jan 2024 00:10:15 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 626128D0001 for ; Wed, 10 Jan 2024 00:10:15 -0500 (EST) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 2C5121203FF for ; Wed, 10 Jan 2024 05:10:15 +0000 (UTC) X-FDA: 81662225190.05.896F79A Received: from mail-oa1-f48.google.com (mail-oa1-f48.google.com [209.85.160.48]) by imf16.hostedemail.com (Postfix) with ESMTP id 6C374180003 for ; Wed, 10 Jan 2024 05:10:13 +0000 (UTC) Authentication-Results: imf16.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=NplM4nUo; spf=pass (imf16.hostedemail.com: domain of jeffxu@chromium.org designates 209.85.160.48 as permitted sender) smtp.mailfrom=jeffxu@chromium.org; dmarc=pass (policy=none) header.from=chromium.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1704863413; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hqYcNWY0+b4B+ZSOG0sn5MgB4C9W0WVUcXjDmWofD1Y=; b=1DKarP3eyibZQyjEQ1/g7H19issYoBk7RSPAZOHUnT27zeZTeVaLlCUs3zSQXFjcB/wlFf thfcnfYtZzzWkEOl/JX52X316Ij5aVkQtZGJNcpH7Y2ZhM+Wqgm6ad0sowemFHlM+T3kf6 y7PnTsJbT5/8GK9fX2l+um9IcTobgb8= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1704863413; a=rsa-sha256; cv=none; b=aP1QtP2pgktZRPmjCIDYHkY2xx4ZtVZ6OwKP92+u1iWc0yiIwUN6sxx3d5S/Y4V0xDOPhs 5bbvWo9MSW59YyESSC/ud4IPLGbvbP7cKF8JPDHiPz357kETXKiON0tlOoFEnGEkRAIYC2 gOksR+XlAkHgif7x7eIkc/X7lEsSHyI= ARC-Authentication-Results: i=1; imf16.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=NplM4nUo; spf=pass (imf16.hostedemail.com: domain of jeffxu@chromium.org designates 209.85.160.48 as permitted sender) smtp.mailfrom=jeffxu@chromium.org; dmarc=pass (policy=none) header.from=chromium.org Received: by mail-oa1-f48.google.com with SMTP id 586e51a60fabf-203fed05a31so2516899fac.0 for ; Tue, 09 Jan 2024 21:10:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1704863412; x=1705468212; darn=kvack.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=hqYcNWY0+b4B+ZSOG0sn5MgB4C9W0WVUcXjDmWofD1Y=; b=NplM4nUoCb712XwtIFQKAmOrKGJADhKIB0Z1jO8KJZJkDvgwuPC5FZIchWYTf/ydK6 z5u9o+Dr53OKJ0QcvEJNy9cUaVrUZNeS75VvvHgVvgJ9A4mxMD+Vyweiu75KUjammAOC iA9zQdAtE3oCR8STPPEWPcL39jKPTnBDurWzM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704863412; x=1705468212; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hqYcNWY0+b4B+ZSOG0sn5MgB4C9W0WVUcXjDmWofD1Y=; b=ftZzVugTfA22A32YptLN4uArjfuN9x9eQvCji3XsroxTgMkm/QRoOawaTMseByXUjH tfjdIfHYS5rG0aIoe/QcoVRgE+ZclAoiP07LmNqUWEgDtK5h47T0rxs6r/nZugqVy1l+ 5qpwcvcmbFZVeAGTaSG7qxlT46eAQIESDPuIlMrrZUlN7LNv7oFxlQF74ZaxTHzjBGxt faGgDh7uL/jYXfsI34V4Nh6iF7izjQYDPRVRbAAQ7V2T8muLdCHZiJqxnPr1kRjQkiBi dOEcCOfT1UoJo+YSDMZy2vgOIX4V1A5s0+NL2F8bHrSdWCdYH+2flShxPh9Sdh/d1qf6 GjXA== X-Gm-Message-State: AOJu0Yzr6I0tLmbKoQhfrZK5+B1CPJKu8cROg2qpQfB4sHLJLVeq0jbp pA7vpcsvJeuaiPaZZfg20n6e/62QIhqWEp7lB5EfBy3zeDFS X-Google-Smtp-Source: AGHT+IGNsvR7puufHhdh8BMcPQbS0gnnOxM0dRuq29mQYdK8iwWzGA1wLv0fQE2MxP5JUCfTd+Ie7pgIvAzCeOBeYqE= X-Received: by 2002:a05:6870:1b8e:b0:203:ea22:4d98 with SMTP id hm14-20020a0568701b8e00b00203ea224d98mr235952oab.87.1704863412576; Tue, 09 Jan 2024 21:10:12 -0800 (PST) MIME-Version: 1.0 References: <20240109154547.1839886-1-jeffxu@chromium.org> <202401091144.2C203AA7@keescook> In-Reply-To: <202401091144.2C203AA7@keescook> From: Jeff Xu Date: Tue, 9 Jan 2024 21:10:01 -0800 Message-ID: Subject: Re: [RFC PATCH v5 0/4] Introduce mseal() To: Kees Cook Cc: akpm@linux-foundation.org, jannh@google.com, sroettger@google.com, willy@infradead.org, gregkh@linuxfoundation.org, torvalds@linux-foundation.org, usama.anjum@collabora.com, jeffxu@google.com, jorgelo@chromium.org, groeck@chromium.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, pedro.falcato@gmail.com, dave.hansen@intel.com, linux-hardening@vger.kernel.org, deraadt@openbsd.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: fysmcyg1j6nnwn1aw9t6po1jyrqj7j7p X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 6C374180003 X-Rspam-User: X-HE-Tag: 1704863413-378622 X-HE-Meta: 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 UAvtgbRl eWqizf22XmefVJpncVx2GIIW6Mos7BZOsmaJK0w6eQ2lBDyKkVaWAxUL3ad704LxhhKXbzu4ETSWTzVOMWM9t6qEEgjzozFFLoUDJGKPcuDxLXnayK0B5v/9d0wKDYexciX2UIijf4VhrqeWlDhRiiy0bcL8a4A0SplvYhBfx1rZ1mrfWOmCQCEF0YnecuuugwAuEGaQSy78Q+UuvcJlpr2myPQ93z9PZpoSOownBMyIjGpjxDrDYCgzHxvWOF1j6xrJijCIuyoMU4Z94Vncgw+Vy3uX4QnjGLurxar9ZKXTUk/+CDgWn37xwj7yOVngLaMIpNrp3+et/ohOMbSXXTU/M6Jq8B4cPnGV6Bhy+3yo+g6U= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000297, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Jan 9, 2024 at 11:47=E2=80=AFAM Kees Cook w= rote: > > On Tue, Jan 09, 2024 at 03:45:38PM +0000, jeffxu@chromium.org wrote: > > This patchset proposes a new mseal() syscall for the Linux kernel. > > Thanks for continuing to work on this! Given Linus's general approval > on the v4, I think this series can also drop the "RFC" part -- this code > is looking to land. :) > OK. > Since we're in the merge window right now, it'll likely be a couple > weeks before akpm will consider putting this in -next. But given timing, > this means it'll have a long time to bake in -next, which is good. > Thanks for the heads up. -Jeff > -Kees > > -- > Kees Cook