netdev - Re: [PATCH net] net/sched: tcindex: update imperfect hash filters respecting rcu

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Message-Id: <167608741800.28853.10844322195002364834.git-patchwork-notify@kernel.org>
Date:   Sat, 11 Feb 2023 03:50:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Pedro Tammela <pctammela@...atatu.com>
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        jiri@...nulli.us, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, sec@...is.email
Subject: Re: [PATCH net] net/sched: tcindex: update imperfect hash filters
 respecting rcu

Hello:

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

On Thu,  9 Feb 2023 11:37:39 -0300 you wrote:
> The imperfect hash area can be updated while packets are traversing,
> which will cause a use-after-free when 'tcf_exts_exec()' is called
> with the destroyed tcf_ext.
> 
> CPU 0:               CPU 1:
> tcindex_set_parms    tcindex_classify
> tcindex_lookup
>                      tcindex_lookup
> tcf_exts_change
>                      tcf_exts_exec [UAF]
> 
> [...]

Here is the summary with links:
  - [net] net/sched: tcindex: update imperfect hash filters respecting rcu
    https://git.kernel.org/netdev/net/c/ee059170b1f7

You are awesome, thank you!
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