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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 E8E6BC2D10F for ; Fri, 24 Jul 2020 21:38:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0B2F206EB for ; Fri, 24 Jul 2020 21:38:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="e2g/T7ES" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726783AbgGXVir (ORCPT ); Fri, 24 Jul 2020 17:38:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726780AbgGXVgp (ORCPT ); Fri, 24 Jul 2020 17:36:45 -0400 Received: from mail-pg1-x541.google.com (mail-pg1-x541.google.com [IPv6:2607:f8b0:4864:20::541]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1471C0619E4 for ; Fri, 24 Jul 2020 14:36:45 -0700 (PDT) Received: by mail-pg1-x541.google.com with SMTP id z5so6146409pgb.6 for ; Fri, 24 Jul 2020 14:36:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=QuSR5OKebfZG9zBTcnsVSNOUx+p1wthou5r7P45Dqng=; b=e2g/T7ESZvOK2o3dhi05Vn3Jsik1P7GtuHpRHV97nJhR9chmHD3goRnMyfoRIvXkpJ NotPjBIoK9R7ayTLCq5EVGqMimLDdpJZE8JgRudIQ2sj3I259P0AVctQODLLRz2Z1kAe FBmH2mq4JZ0WMzHPmHsazvYGXFK3T17zub/5o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=QuSR5OKebfZG9zBTcnsVSNOUx+p1wthou5r7P45Dqng=; b=amzp23DjGCYns8eR0mIX3qHC9y/gyt3IvConn5H3lPCV3TZeQnlsmMp+gdgRlfvlPc V45S12mrPCpefgjen/Co7S+VRNtPXGWROSoUe//XFjKbFS6K4Y+KoVB8IHTzVi/afprE j5GVzAbd5eYG63uwMC9DTllyeGgZDxNDU5DM3DWKswN2WkK71imOhxfnfUs2W+imyhTv /gwe//5PLaUJGCkxxcPYiZqgpLShOqfjmxFp5O3Um3P9hZn8qlYo8/R5RdzUn2iZiRDB PDxtHnDJuQLuqvM/YoppOGO2Z7QsUc0lzdzWK24Mzg/SFMlfANLZYnVTmua8LyIuFrsF i43A== X-Gm-Message-State: AOAM530A+Dz3lJRfV6l49pPgO81sbufVUoHYUu1w/aHH4hnkJKA9Q2xX tOpdVmJP1Ta1RvnYSPBJRDH/Og== X-Google-Smtp-Source: ABdhPJxK435CF+iz91hGK+5NgHvqqee3eWSsmt07ckHJqnxWEFT9dhACW0dihJg65rKzTr+cdKdf2g== X-Received: by 2002:a65:6119:: with SMTP id z25mr10602187pgu.52.1595626605323; Fri, 24 Jul 2020 14:36:45 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id 19sm7331534pfy.193.2020.07.24.14.36.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2020 14:36:43 -0700 (PDT) From: Kees Cook To: Greg Kroah-Hartman Cc: Kees Cook , Scott Branden , Mimi Zohar , Luis Chamberlain , Jessica Yu , SeongJae Park , KP Singh , linux-efi@vger.kernel.org, linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org, selinux@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 00/19] Introduce partial kernel_read_file() support Date: Fri, 24 Jul 2020 14:36:21 -0700 Message-Id: <20200724213640.389191-1-keescook@chromium.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org v3: - add reviews/acks - add "IMA: Add support for file reads without contents" patch - trim CC list, in case that's why vger ignored v2 v2: [missing from lkml archives! (CC list too long?) repeating changes here] - fix issues in firmware test suite - add firmware partial read patches - various bug fixes/cleanups v1: https://lore.kernel.org/lkml/20200717174309.1164575-1-keescook@chromium.org/ Hi, Here's my tree for adding partial read support in kernel_read_file(), which fixes a number of issues along the way. It's got Scott's firmware and IMA patches ported and everything tests cleanly for me (even with CONFIG_IMA_APPRAISE=y). I think the intention is for this to go via Greg's tree since Scott's driver code will depend on it? Thanks, -Kees Kees Cook (15): test_firmware: Test platform fw loading on non-EFI systems selftest/firmware: Add selftest timeout in settings firmware_loader: EFI firmware loader must handle pre-allocated buffer fs/kernel_read_file: Remove FIRMWARE_PREALLOC_BUFFER enum fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum fs/kernel_read_file: Split into separate source file fs/kernel_read_file: Remove redundant size argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Add file_size output argument LSM: Introduce kernel_post_load_data() hook firmware_loader: Use security_post_load_data() module: Call security_kernel_post_load_data() LSM: Add "contents" flag to kernel_read_file hook fs/kernel_file_read: Add "offset" arg for partial reads firmware: Store opt_flags in fw_priv Scott Branden (4): fs/kernel_read_file: Split into separate include file IMA: Add support for file reads without contents firmware: Add request_partial_firmware_into_buf() test_firmware: Test partial read support drivers/base/firmware_loader/fallback.c | 19 +- drivers/base/firmware_loader/fallback.h | 5 +- .../base/firmware_loader/fallback_platform.c | 16 +- drivers/base/firmware_loader/firmware.h | 7 +- drivers/base/firmware_loader/main.c | 143 ++++++++++--- drivers/firmware/efi/embedded-firmware.c | 21 +- drivers/firmware/efi/embedded-firmware.h | 19 ++ fs/Makefile | 3 +- fs/exec.c | 132 +----------- fs/kernel_read_file.c | 189 ++++++++++++++++++ include/linux/efi_embedded_fw.h | 13 -- include/linux/firmware.h | 12 ++ include/linux/fs.h | 39 ---- include/linux/ima.h | 19 +- include/linux/kernel_read_file.h | 55 +++++ include/linux/lsm_hook_defs.h | 6 +- include/linux/lsm_hooks.h | 12 ++ include/linux/security.h | 19 +- kernel/kexec.c | 2 +- kernel/kexec_file.c | 19 +- kernel/module.c | 24 ++- lib/test_firmware.c | 159 +++++++++++++-- security/integrity/digsig.c | 8 +- security/integrity/ima/ima_fs.c | 10 +- security/integrity/ima/ima_main.c | 70 +++++-- security/integrity/ima/ima_policy.c | 1 + security/loadpin/loadpin.c | 17 +- security/security.c | 26 ++- security/selinux/hooks.c | 8 +- .../selftests/firmware/fw_filesystem.sh | 91 +++++++++ tools/testing/selftests/firmware/settings | 8 + tools/testing/selftests/kselftest/runner.sh | 6 +- 32 files changed, 860 insertions(+), 318 deletions(-) create mode 100644 drivers/firmware/efi/embedded-firmware.h create mode 100644 fs/kernel_read_file.c create mode 100644 include/linux/kernel_read_file.h create mode 100644 tools/testing/selftests/firmware/settings -- 2.25.1