netdev - Re: [PATCH net] openvswitch: fix drop over mtu packet after defrag in act

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: <20200722.171535.1525012336516246085.davem@davemloft.net>
Date:   Wed, 22 Jul 2020 17:15:35 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     wenxu@...oud.cn
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net] openvswitch: fix drop over mtu packet after defrag
 in act_ct

From: wenxu@...oud.cn
Date: Tue, 21 Jul 2020 11:09:52 +0800

> From: wenxu <wenxu@...oud.cn>
> 
> When openvswitch conntrack offload with act_ct action. Fragment packets
> defrag in the ingress tc act_ct action and miss the next chain. Then the
> packet pass to the openvswitch datapath without the mru. The defrag over
> mtu packet will be dropped in output of openvswitch for over mtu.
> 
> "kernel: net2: dropped over-mtu packet: 1508 > 1500"
> 
> Fixes: b57dc7c13ea9 ("net/sched: Introduce action ct")
> Signed-off-by: wenxu <wenxu@...oud.cn>

Just FYI, I'm not applying this without some review.