{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64282", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.777Z", "datePublished": "2026-07-25T08:49:25.011Z", "dateUpdated": "2026-07-25T08:49:25.011Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-25T08:49:25.011Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Don't 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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kvm/nested.c"], "versions": [{"version": "069a05e53549685d2b5e54ceb51db1fd04aa50d7", "lessThan": "0c93681aea0a1b8be14730a88abe77c840272e41", "status": "affected", "versionType": "git"}, {"version": "069a05e53549685d2b5e54ceb51db1fd04aa50d7", "lessThan": "cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7", "status": "affected", "versionType": "git"}, {"version": "069a05e53549685d2b5e54ceb51db1fd04aa50d7", "lessThan": "9f76b039a72d7e06374aa96862f0232ed53f7787", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["arch/arm64/kvm/nested.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"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't leak PFN when kvm_translate_vncr() races MMU notifier", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{}

{"bugzilla": {"description": "kernel: KVM: arm64: Don't leak PFN when kvm_translate_vncr() races MMU notifier", "id": "2507126", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507126"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's KVM (Kernel-based Virtual Machine) for arm64 architectures. A race condition between the `kvm_translate_vncr()` function and an MMU (Memory Management Unit) notifier can lead to a Page Frame Number (PFN) leak. This occurs because an early return in `kvm_translate_vncr()` fails to release a reference on a faulted-in PFN, potentially leading to resource exhaustion or information disclosure."], "name": "CVE-2026-64282", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64282\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64282\nhttps://lore.kernel.org/linux-cve-announce/2026072502-CVE-2026-64282-842c@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[069a05e53549685d2b5e54ceb51db1fd04aa50d7,0c93681aea0a1b8be14730a88abe77c840272e41)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[069a05e53549685d2b5e54ceb51db1fd04aa50d7,cd1067ccc0dbc18890a74db116d00a4bc3c7f2f7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[069a05e53549685d2b5e54ceb51db1fd04aa50d7,9f76b039a72d7e06374aa96862f0232ed53f7787)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T11:45:17.632074+00:00", "updated": "2026-07-26T02:45:11.734766+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-200"]}