netdev - Re: [PATCH net] l2tp: do not accept arbitrary sockets

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: <20180306184546.GA1351@alphalink.fr>
Date:   Tue, 6 Mar 2018 19:45:46 +0100
From:   Guillaume Nault <g.nault@...halink.fr>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        James Chapman <jchapman@...alix.com>
Subject: Re: [PATCH net] l2tp: do not accept arbitrary sockets

On Tue, Mar 06, 2018 at 07:54:53AM -0800, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 
> syzkaller found an issue caused by lack of sufficient checks
> in l2tp_tunnel_create()
> 
> RAW sockets can not be considered as UDP ones for instance.
> 
Indeed, missing checks have been the source of so many reports.

Acked-by: Guillaume Nault <g.nault@...halink.fr>