« Volver al listado

CVE-2026-80665

Estado: RecibidaAlta (7.1)—

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort when kvm_translate_vncr() returns -EFAULT. This is not always the case as it's possible to encounter 'late' failures on the output of S1 translation, e.g. a GFN outside of the memslots.

Fix it by preparing an external abort before returning from kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection path while at it.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L sin interacción indica escalada local; la falla en traducción de memoria puede causar DoS por pánico del kernel (external abort sin manejo).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-80665",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2a359e072596fcb2e9e85017a865e3618a2fe5b5",
              "lessThan": "4ead4def04659739c399bfcb063f8a906194c79f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a359e072596fcb2e9e85017a865e3618a2fe5b5",
              "lessThan": "53804b6839573c9c6fff5f4cf075d6746267345e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2a359e072596fcb2e9e85017a865e3618a2fe5b5",
              "lessThan": "9f3e83345a56280efffe235c65593c7e544c0fcc",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "arch/arm64/include/asm/kvm_nested.h",
            "arch/arm64/kvm/at.c",
            "arch/arm64/kvm/nested.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "arch/arm64/include/asm/kvm_nested.h",
            "arch/arm64/kvm/at.c",
            "arch/arm64/kvm/nested.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-28T08:16:51.747",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/4ead4def04659739c399bfcb063f8a906194c79f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/53804b6839573c9c6fff5f4cf075d6746267345e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9f3e83345a56280efffe235c65593c7e544c0fcc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN\n\nkvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort\nwhen kvm_translate_vncr() returns -EFAULT. This is not always the case\nas it's possible to encounter 'late' failures on the output of S1\ntranslation, e.g. a GFN outside of the memslots.\n\nFix it by preparing an external abort before returning from\nkvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection\npath while at it."
    }
  ],
  "lastModified": "2026-08-29T07:16:49.080",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}