Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock()

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To: "GONG, Ruiqi" <gongruiqi1@xxxxxxxxxx>
Subject: Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock()
From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 21 Feb 2024 09:40:29 +0100
Cc: linux-kernel@xxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx, Johannes Weiner <hannes@xxxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxxxx>, Roman Gushchin <roman.gushchin@xxxxxxxxx>, Shakeel Butt <shakeelb@xxxxxxxxxx>, Muchun Song <muchun.song@xxxxxxxxx>, cgroups@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Wang Weiyang <wangweiyang2@xxxxxxxxxx>, Xiu Jianfeng <xiujianfeng@xxxxxxxxxx>
In-reply-to: <20240221081801.69764-1-gongruiqi1@huawei.com>
References: <20240221081801.69764-1-gongruiqi1@huawei.com>

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

Follow-Ups:
- Re: [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock()
  - From: Michal Hocko

References:
- [PATCH stable] memcg: add refcnt for pcpu stock to avoid UAF problem in drain_all_stock()
  - From: GONG, Ruiqi

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