« Volver al listado

CVE-2026-80733

Estado: RecibidaSin puntuar—

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

net: remove WARN_ON_ONCE() from sk_mc_loop()

sk_mc_loop() can be called for sockets that are neither AF_INET nor AF_INET6 (e.g. AF_PACKET sockets when sending packets via raw/packet socket over virtual devices such as VRF or ipvlan).

In such cases, sk_family is not AF_INET/AF_INET6 and sk_mc_loop() falls through the switch statement and triggers WARN_ON_ONCE(1).

Non-INET sockets do not support IP_MULTICAST_LOOP or IPV6_MULTICAST_LOOP options, so loopback should default to true without generating a warning.

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-2026-80733",
  "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": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "97133c4d42654578fab95abe47359ebe784dde18",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "f625c742b33dc137c209dd13d1c5f12b1c18d71c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "ad7fa2f411cb30f63d6725f111be134064cdb718",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "d2adc4e80b29e58b5162ae09f0f657a215806c8c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "c8f256dc849205ccb2bd78bd99a3497b972b44e0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f60e5990d9c1424af9dbca60a23ba2a1c7c1ce90",
              "lessThan": "b8a39a09ae4eaae04309e1e38ed6a1101d967496",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c91f81773cd4bbebfe744e9ab30a7ce093f9b930",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c8c30b2b17f2133e953850c547e3902c3a3d80e2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3fe207e4637a2e792c46a08666aa722f77d7f8f7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3.14.40",
              "lessThan": "3.15",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "3.18.13",
              "lessThan": "3.19",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "3.19.6",
              "lessThan": "3.20",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "net/core/sock.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "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/core/sock.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-03T13:06:12.050",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0d75f2c1d0764efa756ad9c1e078d8c09ea8fc1f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/97133c4d42654578fab95abe47359ebe784dde18",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ad7dbb1d14b1b4406eca8ef9478e8de312ba0cfe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ad7fa2f411cb30f63d6725f111be134064cdb718",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b8a39a09ae4eaae04309e1e38ed6a1101d967496",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c8f256dc849205ccb2bd78bd99a3497b972b44e0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d2adc4e80b29e58b5162ae09f0f657a215806c8c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f625c742b33dc137c209dd13d1c5f12b1c18d71c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: remove WARN_ON_ONCE() from sk_mc_loop()\n\nsk_mc_loop() can be called for sockets that are neither AF_INET\nnor AF_INET6 (e.g. AF_PACKET sockets when sending packets via raw/packet\nsocket over virtual devices such as VRF or ipvlan).\n\nIn such cases, sk_family is not AF_INET/AF_INET6 and sk_mc_loop() falls\nthrough the switch statement and triggers WARN_ON_ONCE(1).\n\nNon-INET sockets do not support IP_MULTICAST_LOOP or IPV6_MULTICAST_LOOP\noptions, so loopback should default to true without generating a warning."
    }
  ],
  "lastModified": "2026-09-03T13:06:12.050",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}