netdev - Re: [PATCH net] udp: fix race between close() and udp

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Message-Id: <162327360312.22106.3464471649898343499.git-patchwork-notify@kernel.org>
Date:   Wed, 09 Jun 2021 21:20:03 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     netdev@...r.kernel.org, kapandey@...eaurora.org,
        dsa@...ulusnetworks.com, davem@...emloft.net, kuba@...nel.org
Subject: Re: [PATCH net] udp: fix race between close() and udp_abort()

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed,  9 Jun 2021 11:49:01 +0200 you wrote:
> Kaustubh reported and diagnosed a panic in udp_lib_lookup().
> The root cause is udp_abort() racing with close(). Both
> racing functions acquire the socket lock, but udp{v6}_destroy_sock()
> release it before performing destructive actions.
> 
> We can't easily extend the socket lock scope to avoid the race,
> instead use the SOCK_DEAD flag to prevent udp_abort from doing
> any action when the critical race happens.
> 
> [...]

Here is the summary with links:
  - [net] udp: fix race between close() and udp_abort()
    https://git.kernel.org/netdev/net/c/a8b897c7bcd4

You are awesome, thank you!
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