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CVE-2025-68191

Estado: AplazadaSin puntuar—

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

udp_tunnel: use netdev_warn() instead of netdev_WARN()

netdev_WARN() uses WARN/WARN_ON to print a backtrace along with file and line information. In this case, udp_tunnel_nic_register() returning an error is just a failed operation, not a kernel bug.

udp_tunnel_nic_register() can fail due to a memory allocation failure (kzalloc() or udp_tunnel_nic_alloc()). This is a normal runtime error and not a kernel bug.

Replace netdev_WARN() with netdev_warn() accordingly.

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-2025-68191",
  "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": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "c018a87942bf1607aeebf8dba5a210ca9a09a0fd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "51b3033088f0420b19027e3d54cd989b6ebd987e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "3c3b148bf8384c8a787753cf20abde1c5731f97f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cc4e3835eff474aa274d6e1d18f69d9d296d3b76",
              "lessThan": "dc2f650f7e6857bf384069c1a56b2937a1ee370d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/ipv4/udp_tunnel_nic.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.9",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.117",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.58",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.8",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/ipv4/udp_tunnel_nic.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-16T14:15:51.790",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/087f1ed450dc6e7e49ffbbbe5b78be1218c6d5e0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3c3b148bf8384c8a787753cf20abde1c5731f97f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/45e4e4a8772fa1c5f6f38e82b732b3a9d8137af4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/51b3033088f0420b19027e3d54cd989b6ebd987e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7758ec35ff3e9a31558eda4f0f9eb0ddfa78a8ba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c018a87942bf1607aeebf8dba5a210ca9a09a0fd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dc2f650f7e6857bf384069c1a56b2937a1ee370d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudp_tunnel: use netdev_warn() instead of netdev_WARN()\n\nnetdev_WARN() uses WARN/WARN_ON to print a backtrace along with\nfile and line information. In this case, udp_tunnel_nic_register()\nreturning an error is just a failed operation, not a kernel bug.\n\nudp_tunnel_nic_register() can fail due to a memory allocation\nfailure (kzalloc() or udp_tunnel_nic_alloc()).\nThis is a normal runtime error and not a kernel bug.\n\nReplace netdev_WARN() with netdev_warn() accordingly."
    }
  ],
  "lastModified": "2026-06-17T09:58:42.680",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}