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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 A10D4C47089 for ; Wed, 26 May 2021 17:35:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87134613B9 for ; Wed, 26 May 2021 17:35:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232766AbhEZRgi (ORCPT ); Wed, 26 May 2021 13:36:38 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:37125 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231461AbhEZRgh (ORCPT ); Wed, 26 May 2021 13:36:37 -0400 Received: from 2.general.dannf.us.vpn ([10.172.65.1] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1llxQt-0004cM-UZ; Wed, 26 May 2021 17:35:04 +0000 From: dann frazier To: linux-man@vger.kernel.org, Michael Kerrisk , David Howells , Heinrich Schuchardt Cc: linux-kernel@vger.kernel.org, Pedro Principeza Subject: [PATCH] kernel_lockdown.7: Remove description of lifting via SysRq (not upstream) Date: Wed, 26 May 2021 11:34:55 -0600 Message-Id: <20210526173455.971103-1-dann.frazier@canonical.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The patch that implemented lockdown lifting via SysRq ended up getting dropped[*] before the feature was merged upstream. Having the feature documented but unsupported has caused some confusion for our users. [*] http://archive.lwn.net:8080/linux-kernel/CACdnJuuxAM06TcnczOA6NwxhnmQUeqqm3Ma8btukZpuCS+dOqg@mail.gmail.com/ Signed-off-by: dann frazier --- man7/kernel_lockdown.7 | 6 ------ 1 file changed, 6 deletions(-) diff --git a/man7/kernel_lockdown.7 b/man7/kernel_lockdown.7 index 30863de62..29ffd55c3 100644 --- a/man7/kernel_lockdown.7 +++ b/man7/kernel_lockdown.7 @@ -33,12 +33,6 @@ where X indicates the process name and Y indicates what is restricted. .PP On an EFI-enabled x86 or arm64 machine, lockdown will be automatically enabled if the system boots in EFI Secure Boot mode. -.PP -If the kernel is appropriately configured, lockdown may be lifted by typing -the appropriate sequence on a directly attached physical keyboard. -For x86 machines, this is -.IR SysRq+x . -.\" .SS Coverage When lockdown is in effect, a number of features are disabled or have their use restricted. -- 2.31.1