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CVE-2026-74718

Estado: RecibidaSin puntuar—

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

devlink: fix net namespace reference leak in reload

devlink_nl_reload_doit() calls devlink_netns_get(), which returns a net with a held reference. When the requested namespace differs from the current one and the reload action is not DRIVER_REINIT, the function returns -EOPNOTSUPP without releasing the reference. Add the missing put_net() on this error path.

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-2026-74718",
  "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": "2edd92570441dd33246210042dc167319a5cf7e3",
              "lessThan": "7b6552e53426ea0539c667bbc5a524fdf7feae6f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2edd92570441dd33246210042dc167319a5cf7e3",
              "lessThan": "bf0797b92be591ac71d7c0f610e695caca3c72c9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2edd92570441dd33246210042dc167319a5cf7e3",
              "lessThan": "7b02c6d2a3cd2cd669f5c16685779f84328ae60c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2edd92570441dd33246210042dc167319a5cf7e3",
              "lessThan": "eda60c85b4f4c7d66b7141a5fe020b1a7f395341",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2edd92570441dd33246210042dc167319a5cf7e3",
              "lessThan": "1c4dac9bf1d2ac31da63b794bdec697777cbd0fd",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/devlink/dev.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.152",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/devlink/dev.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-22T16:16:46.710",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1c4dac9bf1d2ac31da63b794bdec697777cbd0fd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7b02c6d2a3cd2cd669f5c16685779f84328ae60c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7b6552e53426ea0539c667bbc5a524fdf7feae6f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bf0797b92be591ac71d7c0f610e695caca3c72c9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eda60c85b4f4c7d66b7141a5fe020b1a7f395341",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndevlink: fix net namespace reference leak in reload\n\ndevlink_nl_reload_doit() calls devlink_netns_get(), which returns a net\nwith a held reference. When the requested namespace differs from the\ncurrent one and the reload action is not DRIVER_REINIT, the function\nreturns -EOPNOTSUPP without releasing the reference. Add the missing\nput_net() on this error path."
    }
  ],
  "lastModified": "2026-08-22T16:16:46.710",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}