linux-kernel - Re: [PATCH] dccp: don't duplicate ccid when cloning dccp sock

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Date:   Wed, 08 Sep 2021 10:40:08 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lin@...codeaurora.org, Zhenpeng <zplin@....edu>
Cc:     dccp@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        alexey.kodanev@...cle.com
Subject: Re: [PATCH] dccp: don't duplicate ccid when cloning dccp sock

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed, 8 Sep 2021 03:40:59 +0000 you wrote:
> Commit 2677d2067731 ("dccp: don't free ccid2_hc_tx_sock ...") fixed
> a UAF but reintroduced CVE-2017-6074.
> 
> When the sock is cloned, two dccps_hc_tx_ccid will reference to the
> same ccid. So one can free the ccid object twice from two socks after
> cloning.
> 
> [...]

Here is the summary with links:
  - dccp: don't duplicate ccid when cloning dccp sock
    https://git.kernel.org/netdev/net/c/d9ea761fdd19

You are awesome, thank you!
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