netdev - Re: [PATCH net v2 0/2] net_sched: hfsc: Address reentrant enqueue adding class to eltree twice

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Message-Id: 
 <174841562975.1932259.11802728611294523301.git-patchwork-notify@kernel.org>
Date: Wed, 28 May 2025 07:00:29 +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, horms@...nel.org
Subject: Re: [PATCH net v2 0/2] net_sched: hfsc: Address reentrant enqueue adding
 class to eltree twice

Hello:

This series was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Thu, 22 May 2025 15:14:46 -0300 you wrote:
> Savino says:
>     "We are writing to report that this recent patch
>     (141d34391abbb315d68556b7c67ad97885407547)
>     can be bypassed, and a UAF can still occur when HFSC is utilized with
>     NETEM.
> 
>     The patch only checks the cl->cl_nactive field to determine whether
>     it is the first insertion or not, but this field is only
>     incremented by init_vf.
> 
> [...]

Here is the summary with links:
  - [net,v2,1/2] net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
    https://git.kernel.org/netdev/net/c/ac9fe7dd8e73
  - [net,v2,2/2] selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem
    https://git.kernel.org/netdev/net/c/2945ff733dee

You are awesome, thank you!
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