linux-kernel - Re: [PATCH net] net: bonding: fix use-after-free after 802.3ad slave unbind

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Message-Id: <165656161371.1686.14484699232188262665.git-patchwork-notify@kernel.org>
Date:   Thu, 30 Jun 2022 04:00:13 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Yevhen Orlov <yevhen.orlov@...ision.eu>
Cc:     netdev@...r.kernel.org, volodymyr.mytnyk@...ision.eu,
        taras.chornyi@...ision.eu, mickeyr@...vell.com,
        serhiy.pshyk@...ision.eu, maksym.glubokiy@...ision.eu,
        j.vosburgh@...il.com, vfalico@...il.com, andy@...yhouse.net,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: bonding: fix use-after-free after 802.3ad slave
 unbind

Hello:

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

On Wed, 29 Jun 2022 04:29:14 +0300 you wrote:
> commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection"),
> resolve case, when there is several aggregation groups in the same bond.
> bond_3ad_unbind_slave will invalidate (clear) aggregator when
> __agg_active_ports return zero. So, ad_clear_agg can be executed even, when
> num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for,
> previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave
> will not update slave ports list, because lag_ports==NULL. So, here we
> got slave ports, pointing to freed aggregator memory.
> 
> [...]

Here is the summary with links:
  - [net] net: bonding: fix use-after-free after 802.3ad slave unbind
    https://git.kernel.org/netdev/net/c/050133e1aa2c

You are awesome, thank you!
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