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CVE-2026-63986

Estado: Pendiente de análisisSin puntuar—

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

ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure

The goto err label leads to:

If ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg. There's nothing to cancel, and passing an error pointer to genlmsg_cancel() would cause a crash.

Detalles técnicos trazas, registros y código del informe original
	genlmsg_cancel(skb, ehdr);
	return ret;

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-2026-63986",
  "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": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906",
              "lessThan": "2008f9bb1ede9b688624a241228b8e54fc74f0f6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906",
              "lessThan": "d0d2c5ccd1de28368cebeef74d9c530a60eff9a5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b9e3f7dc9ed95daeb83cfa45b821cacaa01aa906",
              "lessThan": "c3fc9976f686f9a95baf87db9d387f218fd65394",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/ethtool/tsinfo.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/ethtool/tsinfo.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-19T16:17:17.847",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2008f9bb1ede9b688624a241228b8e54fc74f0f6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c3fc9976f686f9a95baf87db9d387f218fd65394",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d0d2c5ccd1de28368cebeef74d9c530a60eff9a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure\n\nThe goto err label leads to:\n\n\tgenlmsg_cancel(skb, ehdr);\n\treturn ret;\n\nIf ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg.\nThere's nothing to cancel, and passing an error pointer to\ngenlmsg_cancel() would cause a crash."
    }
  ],
  "lastModified": "2026-07-30T14:51:11.223",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}