From: Hangyu Hua <hbh25y@gmail•com>
To: Eric Dumazet <eric.dumazet@gmail•com>,
jreuter@yaina•de, ralf@linux-mips•org, davem@davemloft•net,
kuba@kernel•org
Cc: linux-hams@vger•kernel.org, netdev@vger•kernel.org,
linux-kernel@vger•kernel.org
Subject: Re: [PATCH net] ax25: use after free in ax25_connect
Date: Mon, 17 Jan 2022 09:35:10 +0800 [thread overview]
Message-ID: <aa1abfd4-e76b-f708-e2de-8018298ff07b@gmail.com> (raw)
In-Reply-To: <8fc4701f-c151-0545-c047-a5df90575d69@gmail.com>
I get it.
Thanks.
On 2022/1/14 下午11:19, Eric Dumazet wrote:
>
> 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 ?
>
prev parent reply other threads:[~2022-01-17 1:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 4:20 [PATCH net] ax25: use after free in ax25_connect Hangyu Hua
2022-01-11 20:56 ` Eric Dumazet
2022-01-12 2:13 ` Hangyu Hua
2022-01-12 9:59 ` Eric Dumazet
2022-01-12 11:11 ` Hangyu Hua
2022-01-14 6:54 ` Hangyu Hua
2022-01-14 15:19 ` Eric Dumazet
2022-01-17 1:35 ` Hangyu Hua [this message]
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