From mboxrd@z Thu Jan  1 00:00:00 1970
From: patchwork-bot+netdevbpf@kernel.org
Subject: Re: [PATCH v0] ax25: NPD bug when detaching AX25 device
Date: Sat, 18 Dec 2021 12:40:10 +0000
Message-ID: <163983121017.1461.2630742040562872080.git-patchwork-notify@kernel.org>
References: <20211217022941.27901-1-linma@zju.edu.cn>
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To: Lin Ma <linma@zju.edu.cn>
Cc: linux-hams@vger.kernel.org, jreuter@yaina.de, ralf@linux-mips.org, davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org, nagi@zju.edu.cn

Hello:

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

On Fri, 17 Dec 2021 10:29:41 +0800 you wrote:
> The existing cleanup routine implementation is not well synchronized
> with the syscall routine. When a device is detaching, below race could
> occur.
> 
> static int ax25_sendmsg(...) {
>   ...
>   lock_sock()
>   ax25 = sk_to_ax25(sk);
>   if (ax25->ax25_dev == NULL) // CHECK
>   ...
>   ax25_queue_xmit(skb, ax25->ax25_dev->dev); // USE
>   ...
> }
> 
> [...]

Here is the summary with links:
  - [v0] ax25: NPD bug when detaching AX25 device
    https://git.kernel.org/netdev/net/c/1ade48d0c27d

You are awesome, thank you!
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