netdev - Re: [PATCH ipsec v7] xfrm: replay: Fix ESN wrap around for GSO

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Message-ID: <20221021091127.GQ3294086@gauss3.secunet.de>
Date:   Fri, 21 Oct 2022 11:11:27 +0200
From:   Steffen Klassert <steffen.klassert@...unet.com>
To:     Christian Langrock <christian.langrock@...unet.com>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        "David Ahern" <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "Jakub Kicinski" <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "open list:NETWORKING [IPSEC]" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH ipsec v7] xfrm: replay: Fix ESN wrap around for GSO

On Mon, Oct 17, 2022 at 08:34:47AM +0200, Christian Langrock wrote:
> When using GSO it can happen that the wrong seq_hi is used for the last
> packets before the wrap around. This can lead to double usage of a
> sequence number. To avoid this, we should serialize this last GSO
> packet.
> 
> Fixes: d7dbefc45cf5 ("xfrm: Add xfrm_replay_overflow functions for offloading")
> Co-developed-by: Steffen Klassert <steffen.klassert@...unet.com>
> Signed-off-by: Christian Langrock <christian.langrock@...unet.com>

Applied, thanks a lot Christian!