linux-kernel - Re: (subset) [PATCH] aoe: fix the potential use-after-free problem in aoecmd_cfg

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Date: Thu, 7 Mar 2024 20:40:07 +0800
From: joeyli <jlee@...e.com>
To: Jens Axboe <axboe@...nel.dk>
Cc: Justin Sanders <justin@...aid.com>,
	"Lee, Chun-Yi" <joeyli.kernel@...il.com>,
	Pavel Emelianov <xemul@...nvz.org>,
	Kirill Korotaev <dev@...nvz.org>,
	"David S . Miller" <davem@...emloft.net>,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH] aoe: fix the potential use-after-free problem
 in aoecmd_cfg_pkts

Hi Jens,

On Wed, Mar 06, 2024 at 08:35:34AM -0700, Jens Axboe wrote:
> 
> On Tue, 05 Mar 2024 16:20:48 +0800, Lee, Chun-Yi wrote:
> > This patch is against CVE-2023-6270. The description of cve is:
> > 
> >   A flaw was found in the ATA over Ethernet (AoE) driver in the Linux
> >   kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on
> >   `struct net_device`, and a use-after-free can be triggered by racing
> >   between the free on the struct and the access through the `skbtxq`
> >   global queue. This could lead to a denial of service condition or
> >   potential code execution.
> > 
> > [...]
> 
> Applied, thanks!
> 
> [1/1] aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
>       commit: f98364e926626c678fb4b9004b75cacf92ff0662
> 

Thanks for your review!

Joey Lee