linux-kernel - Re: [PATCH] PCI/ASPM: fix UAF by removing cached downstream

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]

Message-ID: <13ea5739-d7d3-cefa-d8d7-540635bbdc19@sangfor.com.cn>
Date:   Sat, 29 Apr 2023 22:58:12 +0800
From:   Ding Hui <dinghui@...gfor.com.cn>
To:     bhelgaas@...gle.com
Cc:     dinghui@...gfor.com.cn, sathyanarayanan.kuppuswamy@...ux.intel.com,
        vidyas@...dia.com, david.e.box@...ux.intel.com,
        kai.heng.feng@...onical.com, michael.a.bottini@...ux.intel.com,
        rajatja@...gle.com, qinzongquan@...gfor.com.cn,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PCI/ASPM: fix UAF by removing cached downstream

On 2023/4/29 9:26 下午, Ding Hui wrote:
> If the function 0 of a multifunction device is removed, an freed

Typo "a freed" will be fix in v2.


> downstream pointer will be left in struct pcie_link_state, and then
> when pcie_config_aspm_link() be invoked from any path, we will get a
> KASAN use-after-free report.

-- 
Thanks,
-dinghui