linux-kernel - Re: [PATCH] random: silence compiler warnings and fix race

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 20 Jun 2017 11:49:07 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     "Theodore Ts'o" <tytso@....edu>,
        "Jason A. Donenfeld" <Jason@...c4.com>, noloader@...il.com,
        tglx@...akpoint.cc, David Miller <davem@...emloft.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Eric Biggers <ebiggers3@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        kernel-hardening@...ts.openwall.com,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH] random: silence compiler warnings and fix race

On Tue, Jun 20, 2017 at 11:36 AM, Theodore Ts'o <tytso@....edu> wrote:
>> But I think there's another camp that would mutiny in the face of this
>> kind of hubris.
>
> Blocking the boot for hours and hours until we have enough entropy to
> initialize the CRNG is ***not*** an acceptable way of making the
> warning messages go away.  Do that and the users **will** mutiny.
>
> It's this sort of attitude which is why Linus has in the past said
> that security people are sometimes insane....

Uh, talk about a totally unnecessary punch... In case my last email
wasn't clear, I fully recognize that `default y` is a tad too extreme,
which is why from one of the earliest revisions in this series, I
moved directly to the compromise solution (`depends DEBUG_KERNEL`)
without even waiting for people to complain first.