netdev - Re: [PATCH v0] nfc: nci: add flush

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 13 Apr 2022 08:57:53 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Lin Ma <linma@....edu.cn>, davem@...emloft.net, kuba@...nel.org,
        pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, mudongliangabcd@...il.com
Subject: Re: [PATCH v0] nfc: nci: add flush_workqueue to prevent uaf

On 12/04/2022 18:04, Lin Ma wrote:
> Our detector found a concurrent use-after-free bug when detaching an
> NCI device. The main reason for this bug is the unexpected scheduling
> between the used delayed mechanism (timer and workqueue).
> 
> The race can be demonstrated below:
> 

Thanks!

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof