Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier In the… (CVE-2026-64282)
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier In the case that kvm_translate_vncr() races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to kvm_release_faultin_page() for the unused PFN.
AI Analysis
Technical Summary
The vulnerability in the Linux kernel's KVM arm64 code arises when kvm_translate_vncr() races with an MMU notifier, leading to an early return that fails to release a reference on the faulted-in PFN. This results in leaking a PFN resource. The resolution adds a necessary call to kvm_release_faultin_page() to properly release the unused PFN, preventing the leak. This fix addresses the resource management flaw in the kernel's virtualization subsystem on arm64 architectures.
Potential Impact
The vulnerability causes a resource leak of a page frame number (PFN) in the Linux kernel's KVM arm64 virtualization component. While this does not directly indicate code execution or privilege escalation, resource leaks can degrade system stability or performance over time if exploited or triggered repeatedly.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or vendor advisory content was provided in the input data. Users should monitor official Linux kernel and Ubuntu security advisories for updates addressing CVE-2026-64282.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier In the… (CVE-2026-64282)
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier In the case that kvm_translate_vncr() races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to kvm_release_faultin_page() for the unused PFN.
CVSS v3.1
Score 4.7medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in the Linux kernel's KVM arm64 code arises when kvm_translate_vncr() races with an MMU notifier, leading to an early return that fails to release a reference on the faulted-in PFN. This results in leaking a PFN resource. The resolution adds a necessary call to kvm_release_faultin_page() to properly release the unused PFN, preventing the leak. This fix addresses the resource management flaw in the kernel's virtualization subsystem on arm64 architectures.
Potential Impact
The vulnerability causes a resource leak of a page frame number (PFN) in the Linux kernel's KVM arm64 virtualization component. While this does not directly indicate code execution or privilege escalation, resource leaks can degrade system stability or performance over time if exploited or triggered repeatedly.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official patch or vendor advisory content was provided in the input data. Users should monitor official Linux kernel and Ubuntu security advisories for updates addressing CVE-2026-64282.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-rvp6-qppr-rmf4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64282"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a65420e9c2644c7f80862fd
Added to database: 07/25/2026, 23:09:02 UTC
Last enriched: 08/15/2026, 03:15:11 UTC
Last updated: 09/08/2026, 22:52:14 UTC
Views: 56
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.