linux-kernel - Re: Linux 4.4.34

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, 22 Nov 2016 18:38:56 +0100
From:   Andre Noll <maan@...bingen.mpg.de>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>, stable@...r.kernel.org,
        Jiri Slaby <jslaby@...e.cz>, Yibin Yang <yibyang@...co.com>,
        Alexander Duyck <alexander.h.duyck@...el.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Alexei Starovoitov <ast@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: Linux 4.4.34

On Tue, Nov 22, 09:14, Eric Dumazet wrote
> We definitely want to fix the real bug, not working around it.
> 
> Seems an aliasing problem, key_control and key_basic might point to
> adjacent memory
> and a barrier() would solve the issue as well.

This was also my first idea. I added some printk statements
which confirmed that key_basic->n_proto, key_basic->ip_proto and
key_control->thoff were indeed close to each other. They did not
overlap though.

Hope this helps
Andre
-- 
Max Planck Institute for Developmental Biology
Spemannstraße 35, 72076 Tübingen, Germany. Phone: (+49) 7071 601 829
http://people.tuebingen.mpg.de/maan/

Download attachment "signature.asc" of type "application/pgp-signature" (182 bytes)