linux-kernel - Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all

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Message-ID: <2024022119-bogged-action-c877@gregkh>
Date: Wed, 21 Feb 2024 09:40:29 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: "GONG, Ruiqi" <gongruiqi1@...wei.com>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...nel.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>,
	Shakeel Butt <shakeelb@...gle.com>,
	Muchun Song <muchun.song@...ux.dev>, cgroups@...r.kernel.org,
	linux-mm@...ck.org, Wang Weiyang <wangweiyang2@...wei.com>,
	Xiu Jianfeng <xiujianfeng@...wei.com>
Subject: Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF
 problem in drain_all_stock()

On Wed, Feb 21, 2024 at 04:18:01PM +0800, GONG, Ruiqi wrote:
> commit 1a3e1f40962c445b997151a542314f3c6097f8c3 upstream.
> 
> There was a kernel panic happened on an in-house environment running
> 3.10, and the same problem was reproduced on 4.19:

Now queued up, thanks!

greg k-h