netdev - Re: [PATCH] net: clear local_df when passing skb between namespaces

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 for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20131205.234320.1507003892401539154.davem@davemloft.net>
Date:	Thu, 05 Dec 2013 23:43:20 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	Fred.L.Templin@...ing.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net: clear local_df when passing skb between namespaces

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Thu, 5 Dec 2013 23:29:19 +0100

> We must clear local_df when passing the skb between namespaces as the
> packet is not local to the new namespace any more and thus may not get
> fragmented by local rules. Fred Templin noticed that other namespaces
> do fragment IPv6 packets while forwarding. Instead they should have send
> back a PTB.
> 
> The same problem should be present when forwarding DF-IPv4 packets
> between namespaces.
> 
> Reported-by: Templin, Fred L <Fred.L.Templin@...ing.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Applied and queued up for -stable, thanks Hannes.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html