netdev - Re: [PATCH net 0/2] zerocopy fixes

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] [day] [month] [year] [list]

Message-Id: <20171221.150159.89771271239223708.davem@davemloft.net>
Date:   Thu, 21 Dec 2017 15:01:59 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     willemdebruijn.kernel@...il.com
Cc:     netdev@...r.kernel.org, willemb@...gle.com
Subject: Re: [PATCH net 0/2] zerocopy fixes

From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
Date: Wed, 20 Dec 2017 17:37:48 -0500

> From: Willem de Bruijn <willemb@...gle.com>
> 
> The removal of UFO hardware offload support exposed a bug in
> segmentation of zerocopy skbs.
> 
> The reference counting mechanism for msg_zerocopy was incorrectly
> applied to vhost_net zerocopy packets.
> 
> The other issue observed through analysis. We do not cook skbs
> with skb_zcopy(skb) but no frags, but this is possible in principle.
> Correctly call skb_zcopy_clear on those.

Series applied and queued up for -stable.