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CVE-2026-68333

Estado: RecibidaSin puntuar—

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

dpaa2-switch: put MAC endpoint device on disconnect

fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The switch port connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object.

However, the disconnect path only closes the MAC and frees the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected.

Drop the endpoint device reference before freeing the dpaa2_mac object.

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)

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{
  "id": "CVE-2026-68333",
  "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": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "196f7301537814bef0f5915f87cd73d6d1235c19",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "0e9a6811eb6198ab17538cd01fa155d133b238ed",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "680eecc850d36a280df9780496bc603fec17b2d6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "26ac2d3602347f0377fbcd5214bc28a9d735ae68",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "c27694ff6748e08fcd2fdba89018439d75b8198f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "84cba72956fddf29ba666f885c39ed147024c125",
              "lessThan": "4c1eabbef7a1707635652e956e39db1269c3af2b",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.15",
              "versionType": "semver"
            },
            {
              "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": "6.6.148",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-10T13:20:23.637",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The switch port connect path stores\nthat device in mac->mc_dev and keeps it for the lifetime of the connected\nMAC object.\n\nHowever, the disconnect path only closes the MAC and frees the dpaa2_mac\nobject. It does not drop the endpoint device reference stored in\nmac->mc_dev, so every successful connect leaks that device reference when\nthe MAC is later disconnected.\n\nDrop the endpoint device reference before freeing the dpaa2_mac object."
    }
  ],
  "lastModified": "2026-08-19T17:20:43.370",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}