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Date:   Fri, 14 Jan 2022 07:19:56 -0800
From:   Eric Dumazet <>
To:     Hangyu Hua <>,,,,
Subject: Re: [PATCH net] ax25: use after free in ax25_connect

On 1/13/22 22:54, Hangyu Hua wrote:
> Any suggestions for this patch ? Guys.
> I think putting sk_to_ax25 after lock_sock(sk) here will avoid any 
> possilbe race conditions like other functions in ax25_proto_ops. CTING) {

As explained, your patch is not needed.

You failed to describe how a race was possible.

Just moving code around wont help.

How about providing a stack trace or some syzbot repro ?

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