Re: [PATCH net-next 0/2] net: macvlan: fix potential UAF problem for lowerdev

From: patchwork-bot+netdevbpf
Date: Mon Mar 14 2022 - 06:10:29 EST


Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Fri, 11 Mar 2022 17:02:41 +0800 you wrote:
> Add the reference operation to lowerdev of macvlan to avoid
> the potential UAF problem under the following known scenario:
>
> Someone module puts the NETDEV_UNREGISTER event handler to a
> work, and lowerdev is accessed in the work handler. But when
> the work is excuted, lowerdev has been destroyed because upper
> macvlan did not get reference to lowerdev correctly.
>
> [...]

Here is the summary with links:
- [net-next,1/2] net: macvlan: fix potential UAF problem for lowerdev
https://git.kernel.org/netdev/net-next/c/291ac68478d9
- [net-next,2/2] net: macvlan: add net device refcount tracker
https://git.kernel.org/netdev/net-next/c/1f4a5983d623

You are awesome, thank you!
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