netdev - Re[2]: [PATCH 05/19] netfilter: nf_conntrack_ipv6: improve fragmentation handling

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:	Wed, 22 Aug 2012 10:07:16 +0300 (EEST)
From:	Julian Anastasov <ja@....bg>
To:	Hans Schillstrom <hans@...illstrom.com>
cc:	Jesper Dangaard Brouer <brouer@...hat.com>,
	Patrick McHardy <kaber@...sh.net>,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org,
	Hans Schillstrom <hans.schillstrom@...csson.com>
Subject: Re[2]:  [PATCH 05/19] netfilter: nf_conntrack_ipv6: improve 
 fragmentation handling


	Hello,

On Wed, 22 Aug 2012, Hans Schillstrom wrote:

> >Perhaps we could change/fix the MTU check in IPVS?
> >(This would also solve issues I've seen with TSO/GSO frames, hitting
> >this code path).
> >
> I ran into this as well, 
> try this for the mtu check.
> 
>        if ((!skb->local_df && skb->len > mtu && !skb_is_gso(skb)) ||
>            (IP6CB(skb)->frag_max_size && IP6CB(skb)->frag_max_size > mtu)) {

	Better without local_df check, it is our job to
set it.

Regards

--
Julian Anastasov <ja@....bg>