linux-kernel - Re: [PATCH v0] hamradio: improve the incomplete fix to avoid NPD

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Message-Id: <163983121022.1461.3449970746025868709.git-patchwork-notify@kernel.org>
Date:   Sat, 18 Dec 2021 12:40:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lin Ma <linma@....edu.cn>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        jirislaby@...nel.org, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v0] hamradio: improve the incomplete fix to avoid NPD

Hello:

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

On Fri, 17 Dec 2021 10:13:56 +0800 you wrote:
> The previous commit 3e0588c291d6 ("hamradio: defer ax25 kfree after
> unregister_netdev") reorder the kfree operations and unregister_netdev
> operation to prevent UAF.
> 
> This commit improves the previous one by also deferring the nullify of
> the ax->tty pointer. Otherwise, a NULL pointer dereference bug occurs.
> Partial of the stack trace is shown below.
> 
> [...]

Here is the summary with links:
  - [v0] hamradio: improve the incomplete fix to avoid NPD
    https://git.kernel.org/netdev/net/c/b2f37aead1b8

You are awesome, thank you!
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