CVE-2026-64282 (GCVE-0-2026-64282)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-25 08:49
VLAI
Title
KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 069a05e53549685d2b5e54ceb51db1fd04aa50d7 , < 0c93681aea0a1b8be14730a88abe77c840272e41 (git)
Affected: 069a05e53549685d2b5e54ceb51db1fd04aa50d7 , < cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7 (git)
Affected: 069a05e53549685d2b5e54ceb51db1fd04aa50d7 , < 9f76b039a72d7e06374aa96862f0232ed53f7787 (git)
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Linux Linux Affected: 6.16
Unaffected: 0 , < 6.16 (semver)
Unaffected: 6.18.39 , ≤ 6.18.* (semver)
Unaffected: 7.1.4 , ≤ 7.1.* (semver)
Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Don\u0027t leak PFN when kvm_translate_vncr() races MMU notifier\n\nIn the case that kvm_translate_vncr() races with an MMU notifier the\nearly return does not release a reference on the faulted in PFN. Add\nthe necessary call to kvm_release_faultin_page() for the unused PFN."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:49:25.011Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/0c93681aea0a1b8be14730a88abe77c840272e41"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/9f76b039a72d7e06374aa96862f0232ed53f7787"
        }
      ],
      "title": "KVM: arm64: Don\u0027t leak PFN when kvm_translate_vncr() races MMU notifier",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64282",
    "datePublished": "2026-07-25T08:49:25.011Z",
    "dateReserved": "2026-07-19T15:36:31.777Z",
    "dateUpdated": "2026-07-25T08:49:25.011Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-29T16:57:59+00:00",
      "cve": "CVE-2026-64282",
      "id": "CVE-2026-64282",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: KVM: arm64: Don\u0027t leak PFN when kvm_translate_vncr() races MMU notifier",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64282.json",
      "version": "3"
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      "cve": "CVE-2026-64282",
      "id": "CVE-2026-64282",
      "initial_release_date": "2026-07-25T16:46:39Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64282",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64282.json",
      "version": "3"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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