Re: CVE-2021-47377: kernel: xen/balloon: use a kernel thread instead a workqueue

[Juergen Gross]

Hi,

I'd like to dispute CVE-2021-47377: the issue fixed by upstream commit
8480ed9c2bbd56fc86524998e5f2e3e22f5038f6 can in no way be triggered by
an unprivileged user or by a remote attack of the system, as it requires
initiation of memory ballooning of the running system. This can be done
only by either a host admin or by an admin of the guest which might
suffer the detection of the hanging workqueue.

Please revoke this CVE.


Juergen

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