« Volver al listado

CVE-2026-98331

Estado: RecibidaSin puntuar—

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

wifi: mac80211: unlist vifs when their netdev is unregistered

mac80211 only removes vifs from the local->interfaces list when an interface is removed via ieee80211_if_remove(), before it unregisters the netdev. However, it's possible for a netdev to be unregistered without going through that: When the netns that holds the wiphy is destroyed, the wiphy is supposed to move to the init_ns, but that can run into allocation failures.

Then, mac80211 has an interface listed that doesn't exist, and will eventually hit

Remove the interface from the list in ->ndo_uninit if it's still around to avoid this.

Detalles técnicos trazas, registros y código del informe original
  BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()!
  ...
  _cfg80211_unregister_wdev+0x24/0x36a [cfg80211]
  cfg80211_unregister_wdev+0x15/0x1d [cfg80211]
  ieee80211_remove_interfaces+0x1ff/0x257 [mac80211]
  ieee80211_unregister_hw+0x73/0x1d1 [mac80211]
  mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim]

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-2026-98331",
  "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": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "a22c02863439993095acd0c3db97fa53cd515f4f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "b735ad1a9aca6080192c1316cf2706e5e1318762",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "821bab0456dfca12acef6df702c8f2477d313227",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "463d018323851a608eef52a9427b0585005c647f",
              "lessThan": "eee2efd82867b623982ac51925b5a1812a74c50d",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/mac80211/iface.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.32"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.32",
              "versionType": "semver"
            },
            {
              "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": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/mac80211/iface.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:25.517",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/821bab0456dfca12acef6df702c8f2477d313227",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a22c02863439993095acd0c3db97fa53cd515f4f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b735ad1a9aca6080192c1316cf2706e5e1318762",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eee2efd82867b623982ac51925b5a1812a74c50d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: unlist vifs when their netdev is unregistered\n\nmac80211 only removes vifs from the local->interfaces list when\nan interface is removed via ieee80211_if_remove(), before it\nunregisters the netdev. However, it's possible for a netdev to\nbe unregistered without going through that: When the netns that\nholds the wiphy is destroyed, the wiphy is supposed to move to\nthe init_ns, but that can run into allocation failures.\n\nThen, mac80211 has an interface listed that doesn't exist, and\nwill eventually hit\n\n  BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()!\n  ...\n  _cfg80211_unregister_wdev+0x24/0x36a [cfg80211]\n  cfg80211_unregister_wdev+0x15/0x1d [cfg80211]\n  ieee80211_remove_interfaces+0x1ff/0x257 [mac80211]\n  ieee80211_unregister_hw+0x73/0x1d1 [mac80211]\n  mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim]\n\nRemove the interface from the list in ->ndo_uninit if it's still\naround to avoid this."
    }
  ],
  "lastModified": "2026-10-06T09:18:25.517",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}