« Volver al listado

CVE-2026-97972

Estado: RecibidaSin puntuar—

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

net: macb: put the "mdio" child node reference on success

macb_mii_init() holds the reference returned by of_get_child_by_name() for macb_mdiobus_register() and drops it only on the error paths, so every successful probe leaks a node reference. On a CM5, overlay removal after four bind cycles reports

Drop the reference after registration, where __mdiobus_register() has already taken its own for the lifetime of the bus.

Detalles técnicos trazas, registros y código del informe original
  OF: ERROR: memory leak, expected refcount 1 instead of 5

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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).

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-2026-97972",
  "cveTags": [],
  "metrics": {},
  "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": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
              "lessThan": "5fba30080d298edb742396073372385c961578d3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
              "lessThan": "7d60dc7ff85b73a2119d582ca2d4456b30960380",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "8a6631f1cece09047fa44608d21d520ca65ce7d8",
              "lessThan": "382a373d9ea7a6ac4de9c022385b6217f65ae3cc",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/cadence/macb_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/cadence/macb_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-25T11:17:25.090",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: put the \"mdio\" child node reference on success\n\nmacb_mii_init() holds the reference returned by of_get_child_by_name()\nfor macb_mdiobus_register() and drops it only on the error paths, so\nevery successful probe leaks a node reference. On a CM5, overlay\nremoval after four bind cycles reports\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 5\n\nDrop the reference after registration, where __mdiobus_register() has\nalready taken its own for the lifetime of the bus."
    }
  ],
  "lastModified": "2026-09-25T11:17:25.090",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}