From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4+VfDPHSw1jD14jgOXRfHHitme8m1zf+2KeNioLb16/+w8CAKEYUErRGU0eCz3zbtGm6+Gf ARC-Seal: i=1; a=rsa-sha256; t=1522950839; cv=none; d=google.com; s=arc-20160816; b=QcAIY5RWmxGhGp/1xtr0sUQmBAz1sd6APCoSyJila79beCtJ1FBPk4+YVGOf4f3mjK DAw17zNMw5wHLyiSTk7N2wqHuiEDEUJeny6N1+z9kBJRCG9Kw/I8L3e4fnMm1W97Hz7I n1IB2sEeZmE9Km3l4iRVtF3e02BvY7HXb+Y3ZZCWG5pUMo776GkJ5GFTorxLB7Y4pf0Y xfFhKb3W5+qaS8ZTMDbQSVNDxqHD6HN98oVZ0oH/m0yFTdnCrAREHov9ilTftQxA0zQ6 AYmNClDEEQRCX0j6pHwg3ClWVf9t5h2WvTOgRoebE+f0evcG4a+/ej4tuet/qTHPR9GU 1z1A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:organization:references :in-reply-to:message-id:subject:cc:to:from:date :arc-authentication-results; bh=gTo1SJRTi9AndskhrmEqCaqt8msxKb+PzdHqtIm2K70=; b=JrBa3M3yKXPszeKqjz7phd8rb2CwN7H8/EY59j6qcH6mbG8JhY2qBCdvHSGyvTfsjV D/BDxWksxwAr3c0KB2kN9lVHmfopNWhQWKjAWN4ydlJWxQD6rgzZB+E16WzZnxmnZCag sLK4P98GD73Icpr4i91C+XmFYvOlq2ofpJ9JAaqQDil5XofM/7ggJNUbenwQhXhM5soW jVs/wUAwortUIq0OIg0zXp+kF89K+nuYjvB05UighzLqJDsXal10v0/V0c4ttETYPiaL kRH+BWd1qInWYpbSjvWQ591hl6VRtT3ZCMiThKRqB2cLQDyTwyGRKcjA42iDTsGrmjPF NBKQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of gnomes@lxorguk.ukuu.org.uk designates 82.70.14.225 as permitted sender) smtp.mailfrom=gnomes@lxorguk.ukuu.org.uk Authentication-Results: mx.google.com; spf=pass (google.com: domain of gnomes@lxorguk.ukuu.org.uk designates 82.70.14.225 as permitted sender) smtp.mailfrom=gnomes@lxorguk.ukuu.org.uk Date: Thu, 5 Apr 2018 18:53:47 +0100 From: Alan Cox To: Ard Biesheuvel Cc: David Howells , Andy Lutomirski , Kees Cook , James Morris , linux-efi@vger.kernel.org, Matthew Garrett , Greg Kroah-Hartman , Linux Kernel Mailing List , jforbes@redhat.com, linux-man@vger.kernel.org, joeyli , linux-security-module Subject: Re: [GIT PULL] Kernel lockdown for secure boot Message-ID: <20180405185347.2785eb8a@alans-desktop> In-Reply-To: References: <4136.1522452584@warthog.procyon.org.uk> <17792.1522491600@warthog.procyon.org.uk> Organization: Intel Corporation X-Mailer: Claws Mail 3.15.1-dirty (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcSW1wb3J0YW50Ig==?= X-GMAIL-THRID: =?utf-8?q?1596848216178927191?= X-GMAIL-MSGID: =?utf-8?q?1596929699442105474?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: > Furthermore, there is a fundamental deviation from common security > sense here, where things like command line parameters and other > lockdown specific tunables are blacklisted rather than whitelisted, I've been complaining about this from the start but it appears to be a write only authorship process going on. Alan