CVE-2023-54092

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> KVM: s390: pv: fix index value of replaced ASCE<br /> <br /> The index field of the struct page corresponding to a guest ASCE should<br /> be 0. When replacing the ASCE in s390_replace_asce(), the index of the<br /> new ASCE should also be set to 0.<br /> <br /> Having the wrong index might lead to the wrong addresses being passed<br /> around when notifying pte invalidations, and eventually to validity<br /> intercepts (VM crash) if the prefix gets unmapped and the notifier gets<br /> called with the wrong address.