netdev - Re: [PATCH v1] net: nfc: Fix use-after-free in nfc_genl_llc_{{get/set}

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Message-ID: <34066cf0.998bd.188e2224e93.Coremail.linma@zju.edu.cn>
Date: Thu, 22 Jun 2023 16:04:39 +0800 (GMT+08:00)
From: "Lin Ma" <linma@....edu.cn>
To: "Paolo Abeni" <pabeni@...hat.com>
Cc: krzysztof.kozlowski@...aro.org, avem@...emloft.net, edumazet@...gle.com, 
	kuba@...nel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v1] net: nfc: Fix use-after-free in
 nfc_genl_llc_{{get/set}_params/sdreq}

Hi Paolo,

> 
> It looks like the mentioned race condition could apply to any callers
> of nfc_llcp_find_local(), is there any special reason to not add the
> new check directly inside nfc_llcp_find_local()?
> 

Ooops, I actually haven't consider those cases. I will do a quick check
for that.

> Thanks!
> 
> Paolo

Regards
Lin