linux-kernel - Re: [PATCH 1/2] add helper for highmem checks

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]

Message-ID: <20130211223405.GF2683@pd.tnic>
Date:	Mon, 11 Feb 2013 23:34:05 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Dave Hansen <dave@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, mingo@...nel.org,
	tglx@...utronix.de
Subject: Re: [PATCH 1/2] add helper for highmem checks

On Mon, Feb 11, 2013 at 11:44:12AM -0800, H. Peter Anvin wrote:
> Oh, craptastic. X used to hash /dev/mem to get a random seed. It
> should have stopped that long ago, and used /dev/[u]random.

That's because debian still has this WINGs window manager which hasn't
seen any new releases since 2005: http://voins.program.ru/wdm/ and I'm
using it because I don't want the pompous crap of the other display
managers.

But this one uses /dev/mem as a randomFile only by default - there's a
configuration variable DisplayManager.randomFile which can be pointed
away from /dev/mem so that's easily fixable.

Mind you, I wouldnt've caught the issue if I wasn't using this ancient
thing in its default settings :o).

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/