netdev - Re: [PATCH net] tcp: also NULL skb->dev when copy was needed

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Date:   Fri, 20 Mar 2020 10:14:06 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Florian Westphal <fw@...len.de>, netdev@...r.kernel.org
Cc:     Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net] tcp: also NULL skb->dev when copy was needed



On 3/20/20 8:52 AM, Florian Westphal wrote:
> In rare cases retransmit logic will make a full skb copy, which will not
> trigger the zeroing added in recent change
> b738a185beaa ("tcp: ensure skb->dev is NULL before leaving TCP stack").
> 
> Cc: Eric Dumazet <edumazet@...gle.com>
> Fixes: 75c119afe14f ("tcp: implement rb-tree based retransmit queue")
> Fixes: 28f8bfd1ac94 ("netfilter: Support iif matches in POSTROUTING")
> Signed-off-by: Florian Westphal <fw@...len.de>
> ---

Good catch, thanks Florian !

Signed-off-by: Eric Dumazet <edumazet@...gle.com>