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CVE-2026-89931 KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit

🗓️ 16 Sep 2026 10:32:22Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Linux kernel KVM nVMX double-maps vmcs12 pages due to uncleared nested state pages flag.

Related
Affected
Refs
[
  {
    "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": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
        "lessThan": "ae190f2439ca30067927077bf570d4c5edf07a0f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
        "lessThan": "674a3244f07f323f21a106a7bdcaebb6db6a5058",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
        "lessThan": "bbec4adc2f340d85f4a77a9ddcddaa6b1f4639c5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b4f69df0f65e97fec439130a0d0a8b9c7cc02df2",
        "lessThan": "11722439fb206c88e6f31be54173efa9880b4ccb",
        "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": "6.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.110",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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16 Sep 2026 10:32Current
EPSS0.00209
37