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CVE-2026-64562 KVM: nVMX: Hide shadow VMCS right after VMCLEAR

🗓️ 04 Aug 2026 06:23:21Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

KVM nVMX hides shadow VMCS after VMCLEAR to prevent use-after-free during vCPU migration.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-64562
4 Aug 202606:23
attackerkb
cve
CVE
CVE-2026-64562
4 Aug 202606:23
cve
debiancve
Debian CVE
CVE-2026-64562
4 Aug 202606:23
debiancve
euvd
EUVD
EUVD-2026-52603
4 Aug 202606:23
euvd
nvd
NVD
CVE-2026-64562
4 Aug 202607:16
nvd
osv
OSV
DEBIAN-CVE-2026-64562
4 Aug 202608:47
osv
ptsecurity
Positive Technologies
PT-2026-67669
4 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/kvm/vmx/nested.c"
    ],
    "versions": [
      {
        "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
        "lessThan": "af56298e9d86e6098cd1d2e155cb2949b7c45412",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
        "lessThan": "589419470030a89f16cf19300658b6dc644ca946",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
        "lessThan": "8001d2ce9d9bd09118ce523aef595aa094573ae3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
        "lessThan": "1dabef6e206568bf9d9ade74f6e56a48ea35695d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "355f4fb1405ec29d0fac49b4d41fcd78cbd455d5",
        "lessThan": "622ebfac01ba4f9c0060cebd41257fe46fc4a0b3",
        "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/x86/kvm/vmx/nested.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.148",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.101",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.42",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.6",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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