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  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:	Sat, 02 Nov 2013 02:16:51 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	jasowang@...hat.com
Cc:	edumazet@...gle.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, pmatouse@...hat.com, mst@...hat.com,
	dborkman@...hat.com
Subject: Re: [PATCH net] net: flow_dissector: fail on evil iph->ihl

From: Jason Wang <jasowang@...hat.com>
Date: Fri,  1 Nov 2013 15:01:10 +0800

> We don't validate iph->ihl which may lead a dead loop if we meet a IPIP
> skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl
> is evil (less than 5).
> 
> This issue were introduced by commit ec5efe7946280d1e84603389a1030ccec0a767ae
> (rps: support IPIP encapsulation).
> 
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Petr Matousek <pmatouse@...hat.com>
> Cc: Michael S. Tsirkin <mst@...hat.com>
> Cc: Daniel Borkmann <dborkman@...hat.com>
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Applied and queued up for -stable, thanks Jason.
--
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/

Powered by blists - more mailing lists