FKIE_CVE-2024-40921

Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2025-11-03 22:17
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bridge: mst: pass vlan group directly to br_mst_vlan_set_state Pass the already obtained vlan group pointer to br_mst_vlan_set_state() instead of dereferencing it again. Each caller has already correctly dereferenced it for their context. This change is required for the following suspicious RCU dereference fix. No functional changes intended.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/09f4337c27f5bdeb8646a6db91488cc2f7d537ffPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36c92936e868601fa1f43da6758cf55805043509Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6cc9e9a651b9861efa068c164ee62dfba68c6caPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d2dc02775fc0c4eacaee833a0637e5958884a8e5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/09f4337c27f5bdeb8646a6db91488cc2f7d537ffPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/36c92936e868601fa1f43da6758cf55805043509Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a6cc9e9a651b9861efa068c164ee62dfba68c6caPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d2dc02775fc0c4eacaee833a0637e5958884a8e5Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.10
linux linux_kernel 6.10
linux linux_kernel 6.10
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "12D7386D-25E8-40A5-B960-F1289E3EB949",
              "versionEndExcluding": "6.1.95",
              "versionStartIncluding": "6.1.93",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.9.6",
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              "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA",
              "vulnerable": true
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              "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10",
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: mst: pass vlan group directly to br_mst_vlan_set_state\n\nPass the already obtained vlan group pointer to br_mst_vlan_set_state()\ninstead of dereferencing it again. Each caller has already correctly\ndereferenced it for their context. This change is required for the\nfollowing suspicious RCU dereference fix. No functional changes\nintended."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: bridge: mst: pasar grupo vlan directamente a br_mst_vlan_set_state Pase el puntero del grupo vlan ya obtenido a br_mst_vlan_set_state() en lugar de desreferenciarlo nuevamente. Cada persona que llama ya lo ha desreferenciado correctamente para su contexto. Este cambio es necesario para la siguiente correcci\u00f3n sospechosa de desreferencia de RCU. No se pretenden cambios funcionales."
    }
  ],
  "id": "CVE-2024-40921",
  "lastModified": "2025-11-03T22:17:14.420",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-12T13:15:15.060",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
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      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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