CVE-2026-64282 Details
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.
A vulnerability in the Linux kernel's KVM module for arm64 architecture has been addressed. The issue arose when the function kvm_translate_vncr() raced with an MMU notifier, leading to an early return that failed to release a reference on the faulted-in Page Frame Number (PFN). This oversight could potentially allow for a PFN leak. The vulnerability has been fixed by adding a call to kvm_release_faultin_page() to properly manage the unused PFN.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. The specific commit addressing this issue is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0c93681aea0a1b8be14730a88abe77c840272e41 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9f76b039a72d7e06374aa96862f0232ed53f7787 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-362 | Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.16, < 6.18.39 >= 6.19, < 7.1.4 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 17, 2026 | CVE Modified | kernel.org |
| Aug 13, 2026 | Initial Analysis | [email protected] |
| Jul 25, 2026 | New CVE Received | kernel.org |