netdev - Re: [PATCH net] net: mpls: fix stale pointer if allocation fails during device rename

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Date:   Wed, 15 Feb 2023 10:30:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
        pabeni@...hat.com, bluetlh@...il.com, kuniyu@...zon.co.jp,
        gongruiqi1@...wei.com, rshearma@...cade.com
Subject: Re: [PATCH net] net: mpls: fix stale pointer if allocation fails during
 device rename

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Mon, 13 Feb 2023 22:53:55 -0800 you wrote:
> lianhui reports that when MPLS fails to register the sysctl table
> under new location (during device rename) the old pointers won't
> get overwritten and may be freed again (double free).
> 
> Handle this gracefully. The best option would be unregistering
> the MPLS from the device completely on failure, but unfortunately
> mpls_ifdown() can fail. So failing fully is also unreliable.
> 
> [...]

Here is the summary with links:
  - [net] net: mpls: fix stale pointer if allocation fails during device rename
    https://git.kernel.org/netdev/net/c/fda6c89fe3d9

You are awesome, thank you!
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