CVE-2025-58145: Arm issues with page refcounting
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]
There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.
And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-58145?
CVE-2025-58145 is classified as a moderate severity vulnerability.
How do I fix CVE-2025-58145?
To fix CVE-2025-58145, update to the latest version of the Xen Hypervisor that addresses this vulnerability.
What types of systems are affected by CVE-2025-58145?
CVE-2025-58145 affects systems running the Xen Hypervisor.
What are the risks associated with CVE-2025-58145?
The risks associated with CVE-2025-58145 include potential unauthorized access and instability of virtualized environments.
Are there any workarounds for CVE-2025-58145?
Currently, there are no recommended workarounds for CVE-2025-58145; applying the security update is advised.