fkie_cve-2024-42224
Vulnerability from fkie_nvd
Published
2024-07-30 08:15
Modified
2024-11-21 09:33
Severity ?
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Correct check for empty list Since commit a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") mv88e6xxx_default_mdio_bus() has checked that the return value of list_first_entry() is non-NULL. This appears to be intended to guard against the list chip->mdios being empty. However, it is not the correct check as the implementation of list_first_entry is not designed to return NULL for empty lists. Instead, use list_first_entry_or_null() which does return NULL if the list is empty. Flagged by Smatch. Compile tested only.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3bf8d70e1455f87856640c3433b3660a31001618Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f25b5f1635449036692a44b771f39f772190c1dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/47d28dde172696031c880c5778633cdca30394eePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa03f591ef31ba603a4a99d05d25a0f21ab1cd89Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f75625db838ade28f032dacd0f0c8baca42ecde4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3bf8d70e1455f87856640c3433b3660a31001618Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3f25b5f1635449036692a44b771f39f772190c1dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/47d28dde172696031c880c5778633cdca30394eePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/aa03f591ef31ba603a4a99d05d25a0f21ab1cd89Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f75625db838ade28f032dacd0f0c8baca42ecde4Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2A3C53C3-830D-4A66-871C-483295DC5F51",
              "versionEndExcluding": "4.19.318",
              "versionStartIncluding": "4.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "625DBFAB-C3D0-4309-A27F-12D6428FB38F",
              "versionEndExcluding": "5.4.280",
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              "vulnerable": true
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            {
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A97DEB09-4927-40F8-B5C6-F5BD5EAE0CFD",
              "versionEndExcluding": "5.15.163",
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              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "6.1.98",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "29E894E4-668F-4DB0-81F7-4FB5F698E970",
              "versionEndExcluding": "6.6.39",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ADCC1407-0CB3-4C8F-B4C5-07F682CD7085",
              "versionEndExcluding": "6.9.9",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: mv88e6xxx: Correct check for empty list\n\nSince commit a3c53be55c95 (\"net: dsa: mv88e6xxx: Support multiple MDIO\nbusses\") mv88e6xxx_default_mdio_bus() has checked that the\nreturn value of list_first_entry() is non-NULL.\n\nThis appears to be intended to guard against the list chip-\u003emdios being\nempty.  However, it is not the correct check as the implementation of\nlist_first_entry is not designed to return NULL for empty lists.\n\nInstead, use list_first_entry_or_null() which does return NULL if the\nlist is empty.\n\nFlagged by Smatch.\nCompile tested only."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: dsa: mv88e6xxx: Verificaci\u00f3n correcta de lista vac\u00eda Desde la confirmaci\u00f3n a3c53be55c95 (\"net: dsa: mv88e6xxx: Soporta m\u00faltiples buses MDIO\") mv88e6xxx_default_mdio_bus() ha verificado que el valor de retorno de list_first_entry() no es NULL. Esto parece tener como objetivo proteger contra la lista chip-\u0026gt;mdios que est\u00e9 vac\u00eda. Sin embargo, no es la comprobaci\u00f3n correcta ya que la implementaci\u00f3n de list_first_entry no est\u00e1 dise\u00f1ada para devolver NULL para listas vac\u00edas. En su lugar, utilice list_first_entry_or_null() que devuelve NULL si la lista est\u00e1 vac\u00eda. Marcado por Smatch. Compilaci\u00f3n probada \u00fanicamente."
    }
  ],
  "id": "CVE-2024-42224",
  "lastModified": "2024-11-21T09:33:45.307",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-30T08:15:07.667",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/47d28dde172696031c880c5778633cdca30394ee"
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-754"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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