CVE-2026-64282

KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier

MEDIUM
4.7
CVSS Score
Published: July 25, 2026 at 08:49 AM UTC
Updated: August 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.18.396.16 ≤ v < 7.1.46.16 ≤ v < 7.26.19 ≤ v < 7.1.46.1669a5e53549685d2b5e54ceb51db1fd4aa50d7
Vendor states this is fixed in 0c93681aea0a1b8be14730a88abe77c840272e41 (fixed)
Vendor states this is fixed in 9f76b039a72d7e06374aa96862f0232ed53f7787 (fixed)
Vendor states this is fixed in cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7 (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.39 (unaffected)
Vendor states this is fixed in 7.1.4 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362

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