Messages in this thread | | | Date | Tue, 11 Jul 2023 16:12:54 +0200 | Subject | Re: [PATCH v2 2/2] KVM: s390: pv: fix index value of replaced ASCE | From | Philippe Mathieu-Daudé <> |
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On 5/7/23 13:19, Claudio Imbrenda wrote: > The index field of the struct page corresponding to a guest ASCE should > be 0. When replacing the ASCE in s390_replace_asce(), the index of the > new ASCE should also be set to 0. > > Having the wrong index might lead to the wrong addresses being passed > around when notifying pte invalidations, and eventually to validity > intercepts (VM crash) if the prefix gets unmapped and the notifier gets > called with the wrong address.
Can that also happen in crst_table_alloc()?
> Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com> > --- > arch/s390/mm/gmap.c | 1 + > 1 file changed, 1 insertion(+)
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
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