linux-kernel - Re: [PATCH net v10] skb_expand_head() adjust skb->truesize incorrectly

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Date:   Fri, 22 Oct 2021 20:50:08 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vasily Averin <vvs@...tuozzo.com>
Cc:     eric.dumazet@...il.com, kuba@...nel.org, netdev@...r.kernel.org,
        davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
        jwi@...ux.ibm.com, christoph.paasch@...il.com,
        linux-kernel@...r.kernel.org, kernel@...nvz.org
Subject: Re: [PATCH net v10] skb_expand_head() adjust skb->truesize incorrectly

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Fri, 22 Oct 2021 13:28:37 +0300 you wrote:
> Christoph Paasch reports [1] about incorrect skb->truesize
> after skb_expand_head() call in ip6_xmit.
> This may happen because of two reasons:
> - skb_set_owner_w() for newly cloned skb is called too early,
> before pskb_expand_head() where truesize is adjusted for (!skb-sk) case.
> - pskb_expand_head() does not adjust truesize in (skb->sk) case.
> In this case sk->sk_wmem_alloc should be adjusted too.
> 
> [...]

Here is the summary with links:
  - [net,v10] skb_expand_head() adjust skb->truesize incorrectly
    https://git.kernel.org/netdev/net/c/7f678def99d2

You are awesome, thank you!
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