Re: [PATCH v3] blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd

From: Tejun Heo
Date: Tue Sep 14 2021 - 12:20:13 EST


On Tue, Sep 14, 2021 at 12:26:05PM +0800, Li Jinlin wrote:
...
> Fix by garbbing the matching blkcg lock before trying to
> destroy blkg policy data.
>
> Suggested-by: Tejun Heo <tj@xxxxxxxxxx>
> Signed-off-by: Li Jinlin <lijinlin3@xxxxxxxxxx>

Acked-by: Tejun Heo <tj@xxxxxxxxxx>

Thanks.

--
tejun