netdev - Re: [PATCH net] ethtool: do not perform operations on net devices being unregistered

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Message-Id: <163883880929.20652.6994089130580113681.git-patchwork-notify@kernel.org>
Date:   Tue, 07 Dec 2021 01:00:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Antoine Tenart <atenart@...nel.org>
Cc:     davem@...emloft.net, kuba@...nel.org, alexander.duyck@...il.com,
        mkubecek@...e.cz, netdev@...r.kernel.org
Subject: Re: [PATCH net] ethtool: do not perform operations on net devices being
 unregistered

Hello:

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

On Fri,  3 Dec 2021 11:13:18 +0100 you wrote:
> There is a short period between a net device starts to be unregistered
> and when it is actually gone. In that time frame ethtool operations
> could still be performed, which might end up in unwanted or undefined
> behaviours[1].
> 
> Do not allow ethtool operations after a net device starts its
> unregistration. This patch targets the netlink part as the ioctl one
> isn't affected: the reference to the net device is taken and the
> operation is executed within an rtnl lock section and the net device
> won't be found after unregister.
> 
> [...]

Here is the summary with links:
  - [net] ethtool: do not perform operations on net devices being unregistered
    https://git.kernel.org/netdev/net/c/dde91ccfa25f

You are awesome, thank you!
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