Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE 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.
References
- https://git.kernel.org/stable/c/017f686bcb536ff23d49c143fdf9d1fd89a9a924
- https://git.kernel.org/stable/c/49a2686adddebe1ae76b4d368383208656ef6606
- https://git.kernel.org/stable/c/8e635da0e0d3cb45e32fa79b36218fb98281bc10
- https://git.kernel.org/stable/c/c2fceb59bbda16468bda82b002383bff59de89ab
- https://git.kernel.org/stable/c/f1c7a776338f2ac5e34da40e58fe9f33ea390a5e
FAQ
What is CVE-2023-54092?
CVE-2023-54092 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When...
How severe is CVE-2023-54092?
CVSS scoring is not yet available for CVE-2023-54092. Check NVD for updates.
Is there a patch for CVE-2023-54092?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.