From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f71.google.com (mail-oi0-f71.google.com [209.85.218.71]) by kanga.kvack.org (Postfix) with ESMTP id A9AC16B02B4 for ; Thu, 17 Aug 2017 16:57:11 -0400 (EDT) Received: by mail-oi0-f71.google.com with SMTP id k62so9945704oia.6 for ; Thu, 17 Aug 2017 13:57:11 -0700 (PDT) Received: from mail-io0-x244.google.com (mail-io0-x244.google.com. [2607:f8b0:4001:c06::244]) by mx.google.com with ESMTPS id s63si3232183oie.244.2017.08.17.13.57.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Aug 2017 13:57:09 -0700 (PDT) Received: by mail-io0-x244.google.com with SMTP id c74so4651709iod.4 for ; Thu, 17 Aug 2017 13:57:09 -0700 (PDT) Message-ID: <1503003427.1514.6.camel@gmail.com> Subject: Re: [PATCHv3 2/2] extract early boot entropy from the passed cmdline From: Daniel Micay Date: Thu, 17 Aug 2017 16:57:07 -0400 In-Reply-To: <1502943802.3986.38.camel@gmail.com> References: <20170816231458.2299-1-labbott@redhat.com> <20170816231458.2299-3-labbott@redhat.com> <20170817033148.ownsmbdzk2vhupme@thunk.org> <1502943802.3986.38.camel@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Theodore Ts'o , Laura Abbott Cc: Kees Cook , kernel-hardening@lists.openwall.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton > I did say 'external attacker' but it could be made clearer. Er, s/say/mean to imply/ I do think it will have some local value after Android 8 which should start shipping in a few days though. I'll look into having the kernel stash some entropy in pstore soon since that seems like it could be a great improvement. I'm not sure how often / where it should hook into for regularly refreshing it though. Doing it only on powering down isn't ideal. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org