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CVE-2026-72229

Estado: RecibidaSin puntuar—

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

batman-adv: clean untagged VLAN on netdev registration failure

When an mesh interface is registered, it creates an untagged struct batadv_meshif_vlan on top of it via the NETDEV_REGISTER notifier. But in this process, another receiver of this notification can veto the registration. The netdev registration will be aborted because of this veto.

The register_netdevice() call will try to clean up the net_device using unregister_netdevice_queue() - which only uses the .priv_destructor to free private resources. In this situation, .dellink will not be called.

Leer descripción completaMostrar menos

The cleanup of the untagged batadv_meshif_vlan must thefore be done in the destructor to avoid a leak of this object.

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-2026-72229",
  "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": "5d2c05b213377694a2aa8ce1ed9b23f7c39b0569",
              "lessThan": "86e32dfb6a6fe29898f4a562b7b6e38e480bba4d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5d2c05b213377694a2aa8ce1ed9b23f7c39b0569",
              "lessThan": "06ae245168268b705a204f93c318b30107d10e92",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5d2c05b213377694a2aa8ce1ed9b23f7c39b0569",
              "lessThan": "dbca15fcbeed5276af440a53aed3901590fa7fc9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5d2c05b213377694a2aa8ce1ed9b23f7c39b0569",
              "lessThan": "f2423da55976ea249f73029e468aefda4b94acba",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "f15ca6250591cfe78408114a54eaa8d58da51bfa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5d2c05b213377694a2aa8ce1ed9b23f7c39b0569",
              "lessThan": "c945f6007e7851e74706c72f98763023699bcd97",
              "versionType": "git"
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            {
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              "versionType": "git"
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            {
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "net/batman-adv/main.c",
            "net/batman-adv/mesh-interface.c",
            "net/batman-adv/mesh-interface.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/batman-adv/main.c",
            "net/batman-adv/mesh-interface.c",
            "net/batman-adv/mesh-interface.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:21:49.750",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/06ae245168268b705a204f93c318b30107d10e92",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5a82c558098889cc8bfff85cc62f563833205d91",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8669a550c752d86baebc5fdc83b8ff35c4372c0e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/86e32dfb6a6fe29898f4a562b7b6e38e480bba4d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c945f6007e7851e74706c72f98763023699bcd97",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dbca15fcbeed5276af440a53aed3901590fa7fc9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f15ca6250591cfe78408114a54eaa8d58da51bfa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f2423da55976ea249f73029e468aefda4b94acba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: clean untagged VLAN on netdev registration failure\n\nWhen an mesh interface is registered, it creates an untagged struct\nbatadv_meshif_vlan on top of it via the NETDEV_REGISTER notifier. But in\nthis process, another receiver of this notification can veto the\nregistration. The netdev registration will be aborted because of this veto.\n\nThe register_netdevice() call will try to clean up the net_device using\nunregister_netdevice_queue() - which only uses the .priv_destructor to\nfree private resources. In this situation, .dellink will not be called.\n\nThe cleanup of the untagged batadv_meshif_vlan must thefore be done in the\ndestructor to avoid a leak of this object."
    }
  ],
  "lastModified": "2026-08-17T06:18:24.147",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}