From patchwork Fri Dec 23 18:10:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 13081056 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67F5BC4332F for ; Fri, 23 Dec 2022 18:10:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231467AbiLWSK0 (ORCPT ); Fri, 23 Dec 2022 13:10:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230489AbiLWSKZ (ORCPT ); Fri, 23 Dec 2022 13:10:25 -0500 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C7622706 for ; Fri, 23 Dec 2022 10:10:21 -0800 (PST) Received: by mail-pl1-x62e.google.com with SMTP id u7so5565517plq.11 for ; Fri, 23 Dec 2022 10:10:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :from:to:cc:subject:date:message-id:reply-to; bh=3+W6znzYikgthIHqAsodQzTODii43I4pz6o86CSVkKY=; b=NlxFzFp6oxhdJwdm+cyc7GSZ5WJfeNogbUly2rKcbycHh9aBY/vO1gIiMTnoRjQ8xQ JjKiW2lody/8COOPqjoaDGWHHbuYINcwBh0xKkEF3DZUBwDExEwlSdbgjnYRt3M8Tuvg 2DFn9Rk2qE9RSyWXqO003OUNPjC74700ZcM1Y= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=3+W6znzYikgthIHqAsodQzTODii43I4pz6o86CSVkKY=; b=Lxqj+g7Mw6SGO9poCHJ86l3o17pMRXjt4nJuJVQllg1kLoDvT5mQ5bMtc4cu1AIPPG hzgH1S5N2N4bxHQcdtBQNo9H/1/YmID10Vq+HNzhGlNtkQ7mwYBjKukdnf0hxpgcoiZW Q3ME3DCJplVhLBp+ryRZpVnrEiAEIpPkAWa1aBaNrcIR65yyt6aRxGO8+UPwnu2eZRMM HK+hbTicvWTS2A/iIzsWUsvcqGjt3xPp/0hoQJyYtT5Do7Ppm4u3gz6uvpaMjkJmlzV4 jKwGMbHZpbiYVvV26UrVvUgrYOg2RydnY/tmgz9qO5nBfahBhrpOy/9wdMNZV2kB9naD kmDg== X-Gm-Message-State: AFqh2krZAsxD4pCHQey/59SwboyXFE/VjCDl3x5CdzMz+49ZjKpWNSWH GDXSRmthhyvQn1qTUb+yDyxgkQ== X-Google-Smtp-Source: AMrXdXuNZNPYkACiKVfKc6KMMM98DCtIMH4HjpMg1lJrM6gl1VxbK+WW95O+/CAFdZNlRfCRFMjh9A== X-Received: by 2002:a17:902:7488:b0:189:f708:9b67 with SMTP id h8-20020a170902748800b00189f7089b67mr11585591pll.46.1671819020829; Fri, 23 Dec 2022 10:10:20 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id n2-20020a170902e54200b001887e30b9ddsm2633377plf.257.2022.12.23.10.10.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Dec 2022 10:10:20 -0800 (PST) Date: Fri, 23 Dec 2022 10:10:19 -0800 From: Kees Cook To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Andrew Morton , Arnd Bergmann , Daniel =?iso-8859-1?q?D=EDaz?= , "Eric W. Biederman" , James Morris , Jann Horn , Kees Cook , kernel test robot , Kristina Martsenko , linux-hardening@vger.kernel.org, linux-security-module@vger.kernel.org, Luis Chamberlain , Marco Elver , Mark Rutland , Nathan Chancellor , Paul Moore , Peter Zijlstra , Petr Mladek , Ping-Ke Shih , Sami Tolvanen , Sebastian Andrzej Siewior , "Serge E. Hallyn" , tangmeng , Tiezhu Yang Subject: [GIT PULL] kernel hardening fixes for v6.1-rc1 Message-ID: <202212231009.EC864645D8@keescook> MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org Hi Linus, Please pull these kernel hardening fixes for v6.1-rc1, collected over the last week. Thanks! -Kees The following changes since commit d272e01fa0a2f15c5c331a37cd99c6875c7b7186: ksmbd: replace one-element arrays with flexible-array members (2022-12-02 13:14:29 -0800) are available in the Git repository at: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/hardening-v6.1-rc1-fixes for you to fetch changes up to cf8016408d880afe9c5dc495af40dc2932874e77: cfi: Fix CFI failure with KASAN (2022-12-23 10:04:31 -0800) ---------------------------------------------------------------- kernel hardening fixes for v6.1-rc1 - Fix CFI failure with KASAN (Sami Tolvanen) - Fix LKDTM + CFI under GCC 7 and 8 (Kristina Martsenko) - Limit CONFIG_ZERO_CALL_USED_REGS to Clang > 15.0.6 (Nathan Chancellor) - Ignore "contents" argument in LoadPin's LSM hook handling - Fix paste-o in /sys/kernel/warn_count API docs - Use READ_ONCE() consistently for oops/warn limit reading ---------------------------------------------------------------- Kees Cook (3): LoadPin: Ignore the "contents" argument of the LSM hooks docs: Fix path paste-o for /sys/kernel/warn_count exit: Use READ_ONCE() for all oops/warn limit reads Kristina Martsenko (1): lkdtm: cfi: Make PAC test work with GCC 7 and 8 Nathan Chancellor (1): security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6 Sami Tolvanen (1): cfi: Fix CFI failure with KASAN Documentation/ABI/testing/sysfs-kernel-warn_count | 2 +- drivers/misc/lkdtm/cfi.c | 6 ++++- kernel/Makefile | 3 --- kernel/exit.c | 6 +++-- kernel/panic.c | 7 ++++-- security/Kconfig.hardening | 3 +++ security/loadpin/loadpin.c | 30 ++++++++++++++--------- 7 files changed, 36 insertions(+), 21 deletions(-)