« Volver al listado

CVE-2026-80680

Estado: RecibidaAlta (7.8)—

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

i2c: amd-mp2: Unregister callback on adapter add failure

amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI driver's callback table before the adapter is registered. If i2c_add_adapter() fails, probe returns and devres frees the context, but the PCI driver can still dereference the stale pointer from its IRQ and system-sleep callbacks.

Unregister the callback before returning the adapter registration error.

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.

Vulnerabilidad local (AV:L) en kernel Linux sin interacción requerida que permite escalada de privilegios mediante use-after-free en callback I2C, ejecutando código con privilegios elevados o causando negación de servicio.

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

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

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-2026-80680",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "9142a3dcff0d80a3a24ce159aee19ddc869d9784",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "2f7789b3a9628819ebf90bcba8f9da3c139f8687",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "4786d4d70dcd1e6b7e044f2348e00f201947b69c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "b7c2c5c8868737926410b93d1223ada17625ead3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "cf107c5983dc70fcf932a305581a5f976d908ff1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "1883a09a37fed497b9efacf736c23624a472246b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "8bf719659406e4a1b56d441e0c7da2085d891d96",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "529766e0a0114438887382a68d97341fbf8349fb",
              "lessThan": "82048795242f04275a3f49ffc66ad851b6120954",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/i2c/busses/i2c-amd-mp2-plat.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/i2c/busses/i2c-amd-mp2-plat.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-28T08:16:53.350",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1883a09a37fed497b9efacf736c23624a472246b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2f7789b3a9628819ebf90bcba8f9da3c139f8687",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4786d4d70dcd1e6b7e044f2348e00f201947b69c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/82048795242f04275a3f49ffc66ad851b6120954",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8bf719659406e4a1b56d441e0c7da2085d891d96",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9142a3dcff0d80a3a24ce159aee19ddc869d9784",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b7c2c5c8868737926410b93d1223ada17625ead3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cf107c5983dc70fcf932a305581a5f976d908ff1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: amd-mp2: Unregister callback on adapter add failure\n\namd_mp2_register_cb() stores the platform I2C context in the MP2 PCI\ndriver's callback table before the adapter is registered. If\ni2c_add_adapter() fails, probe returns and devres frees the context,\nbut the PCI driver can still dereference the stale pointer from its IRQ\nand system-sleep callbacks.\n\nUnregister the callback before returning the adapter registration error."
    }
  ],
  "lastModified": "2026-08-29T07:16:50.370",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}