netdev - Re: [PATCH net] net: fix use-after-free in the netdev_nl_sock_priv

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Message-Id: 
 <174346625325.178192.3318310238239193156.git-patchwork-notify@kernel.org>
Date: Tue, 01 Apr 2025 00:10:53 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Taehee Yoo <ap420073@...il.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 edumazet@...gle.com, andrew+netdev@...n.ch, horms@...nel.org,
 netdev@...r.kernel.org, jdamato@...tly.com, sdf@...ichev.me,
 almasrymina@...gle.com, xuanzhuo@...ux.alibaba.com
Subject: Re: [PATCH net] net: fix use-after-free in the
 netdev_nl_sock_priv_destroy()

Hello:

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

On Fri, 28 Mar 2025 06:22:37 +0000 you wrote:
> In the netdev_nl_sock_priv_destroy(), an instance lock is acquired
> before calling net_devmem_unbind_dmabuf(), then releasing an instance
> lock(netdev_unlock(binding->dev)).
> However, a binding is freed in the net_devmem_unbind_dmabuf().
> So using a binding after net_devmem_unbind_dmabuf() occurs UAF.
> To fix this UAF, it needs to use temporary variable.
> 
> [...]

Here is the summary with links:
  - [net] net: fix use-after-free in the netdev_nl_sock_priv_destroy()
    https://git.kernel.org/netdev/net/c/42f342387841

You are awesome, thank you!
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