Re: CVE-2021-47090: mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()

From: Michal Hocko
Date: Tue Mar 05 2024 - 13:45:15 EST


On Mon 04-03-24 19:11:17, Greg KH wrote:
> Description
> ===========
>
> In the Linux kernel, the following vulnerability has been resolved:
>
> mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()

I would like to dispute this CVE. The interface is behind CAP_SYSADMIN
and allowing access to this to any untrusted party is risking serious
troubles. This is a testing only feature.

--
Michal Hocko
SUSE Labs