netdev - Re: [PATCH net] net: openvswitch: remove misbehaving actions length check

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Message-Id: 
 <174185883275.1437903.4351335237770431725.git-patchwork-notify@kernel.org>
Date: Thu, 13 Mar 2025 09:40:32 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Ilya Maximets <i.maximets@....org>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, dev@...nvswitch.org,
 linux-kernel@...r.kernel.org, pshelar@....org, echaudro@...hat.com,
 aconole@...hat.com
Subject: Re: [PATCH net] net: openvswitch: remove misbehaving actions length check

Hello:

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

On Sat,  8 Mar 2025 01:45:59 +0100 you wrote:
> The actions length check is unreliable and produces different results
> depending on the initial length of the provided netlink attribute and
> the composition of the actual actions inside of it.  For example, a
> user can add 4088 empty clone() actions without triggering -EMSGSIZE,
> on attempt to add 4089 such actions the operation will fail with the
> -EMSGSIZE verdict.  However, if another 16 KB of other actions will
> be *appended* to the previous 4089 clone() actions, the check passes
> and the flow is successfully installed into the openvswitch datapath.
> 
> [...]

Here is the summary with links:
  - [net] net: openvswitch: remove misbehaving actions length check
    https://git.kernel.org/netdev/net/c/a1e64addf3ff

You are awesome, thank you!
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