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CVE-2026-98579

Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 11 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:

nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure

nfc_genl_llc_sdreq() construye una lista de nodos TLV mientras recorre los atributos anidados de netlink, pero 3 rutas de error (fallo al analizar los atributos anidados, error de ENOMEM al asignar un TLV y fallo de nfc_llcp_send_snl_sdreq()) omiten la liberación de lo que ya se había encolado.

Dirigirlas a una nueva etiqueta free_list, siguiendo el patrón de la ruta SDRES del mismo archivo, que ya hace esto. También es inofensivo en la ruta de éxito: send_snl_sdreq() vacía la lista a medida que mueve los nodos, así que ya está vacía cuando se ejecuta free_list.

Traducción automática del texto original de NVD (en inglés).

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.21 %
Percentil entre todas las CVEs puntuadas
11
Fecha de la puntuación
20/10/2026

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

Mostrar las 8 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-98579",
  "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": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "5b1eca82085134bd92cd3810b0ef003c91e3f668",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "755bfc409748d8f3df64eb0eb26926270de3dd77",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "e43ec0191c1630f41e7043ac729ea6f1b8044a7f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "08d2c069239ab425fdd333784a6a3b3e034e4aa0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "cbde7f5d326172d6dbb55cca0df42fa7e1ed8115",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "0b01a946b0f234f5badd25968610b585a4895f08",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d9b8d8e19b073096d3609bbd60f82148d128b555",
              "lessThan": "66f4300206b82b0b143ef0d9be90cd8d29f23a47",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/nfc/netlink.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/nfc/netlink.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:10.363",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/08d2c069239ab425fdd333784a6a3b3e034e4aa0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/0b01a946b0f234f5badd25968610b585a4895f08",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5b1eca82085134bd92cd3810b0ef003c91e3f668",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/66f4300206b82b0b143ef0d9be90cd8d29f23a47",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/755bfc409748d8f3df64eb0eb26926270de3dd77",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cbde7f5d326172d6dbb55cca0df42fa7e1ed8115",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d3f60a7fc291d08cd9192a3b4cd5d3a223fa7d02",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e43ec0191c1630f41e7043ac729ea6f1b8044a7f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure\n\nnfc_genl_llc_sdreq() builds a list of TLV nodes while walking nested\nnetlink attrs, but 3 error paths (nested-attr parse failure, TLV alloc\nENOMEM, nfc_llcp_send_snl_sdreq() failure) all skip freeing what was\nalready queued.\n\nRoute them through a new free_list label, mirroring the SDRES path in\nthe same file which already does this. Harmless on the success path\ntoo -- send_snl_sdreq() drains the list as it moves nodes, so it's\nalready empty by the time free_list runs."
    }
  ],
  "lastModified": "2026-10-19T10:19:18.453",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}