FKIE_CVE-2025-68294

Vulnerability from fkie_nvd - Published: 2025-12-16 16:16 - Updated: 2026-10-14 16:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: io_uring/net: ensure vectored buffer node import is tied to notification When support for vectored registered buffers was added, the import itself is using 'req' rather than the notification io_kiocb, sr->notif. For non-vectored imports, sr->notif is correctly used. This is important as the lifetime of the two may be different. Use the correct io_kiocb for the vectored buffer import.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14459281e027f23b70885c1cc1032a71c0efd8d7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6041803a831266a2a5a5b5af66f7de0845bcbf3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "io_uring/net.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "14459281e027f23b70885c1cc1032a71c0efd8d7",
              "status": "affected",
              "version": "23371eac7d9a9bca5360cfb3eb3aa08648ee7246",
              "versionType": "git"
            },
            {
              "lessThan": "f6041803a831266a2a5a5b5af66f7de0845bcbf3",
              "status": "affected",
              "version": "23371eac7d9a9bca5360cfb3eb3aa08648ee7246",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "io_uring/net.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/net: ensure vectored buffer node import is tied to notification\n\nWhen support for vectored registered buffers was added, the import\nitself is using \u0027req\u0027 rather than the notification io_kiocb, sr-\u003enotif.\nFor non-vectored imports, sr-\u003enotif is correctly used. This is important\nas the lifetime of the two may be different. Use the correct io_kiocb\nfor the vectored buffer import."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nio_uring/net: asegurar que la importaci\u00f3n de nodos de b\u00fafer vectorizados est\u00e9 ligada a la notificaci\u00f3n\n\nCuando se a\u00f1adi\u00f3 soporte para b\u00faferes registrados vectorizados, la importaci\u00f3n en s\u00ed est\u00e1 usando \u0027req\u0027 en lugar del io_kiocb de notificaci\u00f3n, sr -\u003e notif. Para importaciones no vectorizadas, sr -\u003e notif se usa correctamente. Esto es importante ya que la vida \u00fatil de los dos puede ser diferente. Usar el io_kiocb correcto para la importaci\u00f3n de b\u00fafer vectorizado."
    }
  ],
  "id": "CVE-2025-68294",
  "lastModified": "2026-10-14T16:10:00.250",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-16T16:16:08.303",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/14459281e027f23b70885c1cc1032a71c0efd8d7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f6041803a831266a2a5a5b5af66f7de0845bcbf3"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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