Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp1003223imm; Sat, 14 Jul 2018 19:28:32 -0700 (PDT) X-Google-Smtp-Source: AAOMgpfzwD/9U4GXz0LmnJPuRKzkU4d3qD6wPCFjeYFYzfX2gEET15qUb5KhYtAaLMnGgIxS02eT X-Received: by 2002:a63:d704:: with SMTP id d4-v6mr11125560pgg.312.1531621712313; Sat, 14 Jul 2018 19:28:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531621712; cv=none; d=google.com; s=arc-20160816; b=DWQAFM3MJX7RGhP3N0VGMQ3Emt4iJomk53I+SW5k6isNDgP2tPuwXxjnE1a7x6za/i lzST2MrFxLageMKsZJ31A6LkpOIdlS8mLk7eZN8zmQt+myuwNsSi6C7Z0jXSq2zKuzbV MvLkF/gOcC2eAbQKGIjIa2tZHqqjuwUxD2LWNXonvbrp7X0XP+s1uOx2Qb1iaMfjuf4r dBbSWJXDUJajoMNXXTRyS/UOZJ1q1L84VMBs0kx/oeyznZuWIPn+g2veLkqDpOhL7h0a Wx0YkYM0M2XVAkqQaXXasHlN50Vzj7hZqVYKmKHkUKL9wfgAR+gB05ktK/2G8Qw9tGkF GW3g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :references:in-reply-to:mime-version:dkim-signature:dkim-signature :arc-authentication-results; bh=QsV+btA4uJwLvESfcb7wiZTl597SRI18zc1gHRK4F2M=; b=nL2f0tm7Dal6UAGpjB2cHnUNU8Onl8xbiXcosDwVgQ1voxwwvsdvNBRE5nUe35hCkW mQ40EHTbJdoVCmpSr8b9UjTaFjPkX8+oI6xAb9JTKJTBtX4UAQVBEm8WefoTzOwh2PQf kgWYQtdVnNGE7gGP1rqwyGA5gDm9aNDFqfg9L2uQ8j9qpKJBBDtXb37mZ1DEBaNecOZL oJ4Zx2opzOnd+9phFr+MA/0PD+IUvTSFJSKYjh4oX7TRQ//eUfVMtF0gucdv534GN6sz 9hHHSfg/rdBevouqkj4Zwmnva1yNZunz3bGEUpMZ0s1pZ8U4M0WUmzBopPySUAurhcXA 1QgQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@google.com header.s=20161025 header.b=LjseaVra; dkim=fail header.i=@chromium.org header.s=google header.b=ZOWa98CU; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=chromium.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p84-v6si24038410pfl.17.2018.07.14.19.28.17; Sat, 14 Jul 2018 19:28:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@google.com header.s=20161025 header.b=LjseaVra; dkim=fail header.i=@chromium.org header.s=google header.b=ZOWa98CU; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732896AbeGOCsy (ORCPT + 99 others); Sat, 14 Jul 2018 22:48:54 -0400 Received: from mail-yb0-f193.google.com ([209.85.213.193]:46761 "EHLO mail-yb0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731985AbeGOCsy (ORCPT ); Sat, 14 Jul 2018 22:48:54 -0400 Received: by mail-yb0-f193.google.com with SMTP id c3-v6so4689490ybi.13 for ; Sat, 14 Jul 2018 19:27:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=QsV+btA4uJwLvESfcb7wiZTl597SRI18zc1gHRK4F2M=; b=LjseaVraG/dteYMHbW0vMmkuLJW5p/Up6EcD+74pGEx+Z8NfyamF7K57N9BQ+eYhca FLfUuFG8Y/W0tyqUGEWZ/S9KUZlgcADacXsQNXzAD8NlF+iaR1TYjxvc/uFPnett6U39 llUw946vyLzZTCvSdbJvUfThvYv523sprrjaQZgZy9qFMVtui39f05MUsMfri/heydlT uZ5FogKsLVNF9wCNcSkkLe8qilq9zZfOlZYA+jEngg65JK66KUtk0WFxcJ91P/xpcUac WmMzm1QcCDmAMxwuLCZ/vdeH/m+tkUGq0Fx1O6jVONw+QlwUoIgGw6Y/f0Oru/d7e6nH vLQQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=QsV+btA4uJwLvESfcb7wiZTl597SRI18zc1gHRK4F2M=; b=ZOWa98CUXqPLigmarGcye2Z8LXPc758AqboM9MAmajHLbxUbYDZrr8HHjvcvCgFQb7 QfLFyHFl3ZrI7Z6xDg0wsWYaOUj1LYBmqYgZxtkrrb8lqyizjntOqOE/gEaXUPsn/PAP 5MhoZlf8MYNNCTxzx3zudAs6gXHSIm5nt98VU= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=QsV+btA4uJwLvESfcb7wiZTl597SRI18zc1gHRK4F2M=; b=MW9UWpaQag2nbgzmi5I/e2t/k1nYHOjaz7+K3WLrIFPFh3OyYvL7Y6IGmNDBZu5M1a X9uQ/YBe359H5B0e+YRKLgUxrJg2xum2nEVgRqP/PHcQ/NL+S8bDGh+GIu40Cgr+g8eF p8jAwTlmx2tWL9gZD+IHxiqwSK5xa7WO8r3532jyzrDM2teHxkHnqp5ko08sYu0NY/FL 4o9ZHlZZ8DwjaoR2ilEenXoMjoGZvIq8dd18M6yuGv/ipfadoo4Ye7Eyd5oUERxljr/O IWlASpuKriQrLjFpV6O4UPiwjz/zRvcbv9LflP3aS+IlxWBf8Z/POEvRPvnQLN5aBRZY kUYA== X-Gm-Message-State: AOUpUlG5NmHzH5cQLAtcF/XCa6s6YdFXp/c8p79we/sLQV1MJqlg7usL oA6xi83KzeG6/y7R+Krnf6hLINNUPXgEuLhMLMrKlg== X-Received: by 2002:a25:3445:: with SMTP id b66-v6mr6379363yba.484.1531621662873; Sat, 14 Jul 2018 19:27:42 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a25:6602:0:0:0:0:0 with HTTP; Sat, 14 Jul 2018 19:27:42 -0700 (PDT) In-Reply-To: <1531505163-20227-6-git-send-email-zohar@linux.vnet.ibm.com> References: <1531505163-20227-1-git-send-email-zohar@linux.vnet.ibm.com> <1531505163-20227-6-git-send-email-zohar@linux.vnet.ibm.com> From: Kees Cook Date: Sat, 14 Jul 2018 19:27:42 -0700 X-Google-Sender-Auth: BBB73tMICXFaURwiSUNEgE0N4j4 Message-ID: Subject: Re: [PATCH v6 5/8] ima: based on policy require signed firmware (sysfs fallback) To: Mimi Zohar Cc: linux-integrity , linux-security-module , LKML , "Luis R . Rodriguez" , Eric Biederman , Kexec Mailing List , Andres Rodriguez , Greg Kroah-Hartman , "Luis R . Rodriguez" , Matthew Garrett Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 13, 2018 at 11:06 AM, Mimi Zohar wrote: > With an IMA policy requiring signed firmware, this patch prevents > the sysfs fallback method of loading firmware. > > Signed-off-by: Mimi Zohar > Cc: Luis R. Rodriguez > Cc: Matthew Garrett Reviewed-by: Kees Cook -Kees -- Kees Cook Pixel Security