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CVE-2024-42224 (GCVE-0-2024-42224)

Vulnerability from cvelistv5 – Published: 2024-07-30 07:47 – Updated: 2026-08-05 11:35
VLAI
Title
net: dsa: mv88e6xxx: Correct check for empty list
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.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:14 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 47d28dde172696031c880c5778633cdca30394ee (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 3bf8d70e1455f87856640c3433b3660a31001618 (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 2a2fe25a103cef73cde356e6d09da10f607e93f5 (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 8c2c3cca816d074c75a2801d1ca0dea7b0148114 (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < aa03f591ef31ba603a4a99d05d25a0f21ab1cd89 (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 3f25b5f1635449036692a44b771f39f772190c1d (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < f75625db838ade28f032dacd0f0c8baca42ecde4 (git)
Affected: a3c53be55c955b7150cda17874c3fcb4eeb97a89 , < 4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 4.19.318 , ≤ 4.19.* (semver)
Unaffected: 5.4.280 , ≤ 5.4.* (semver)
Unaffected: 5.10.222 , ≤ 5.10.* (semver)
Unaffected: 5.15.163 , ≤ 5.15.* (semver)
Unaffected: 6.1.98 , ≤ 6.1.* (semver)
Unaffected: 6.6.39 , ≤ 6.6.* (semver)
Unaffected: 6.9.9 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "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."
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                "url": "https://git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5"
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                "url": "https://git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114"
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              {
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                "url": "https://git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-42224",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T16:14:41.449489Z",
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
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            "title": "CISA ADP Vulnrichment"
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.11"
                },
                {
                  "lessThan": "4.11",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.318",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.280",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.222",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.163",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.98",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.39",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.9.*",
                  "status": "unaffected",
                  "version": "6.9.9",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.10",
                  "versionType": "original_commit_for_fix"
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          ],
          "cpeApplicability": [
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                    {
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                    },
                    {
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                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "negate": false,
                  "operator": "OR"
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              "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."
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            {
              "url": "https://git.kernel.org/stable/c/3bf8d70e1455f87856640c3433b3660a31001618"
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            {
              "url": "https://git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5"
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              "url": "https://git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114"
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            {
              "url": "https://git.kernel.org/stable/c/aa03f591ef31ba603a4a99d05d25a0f21ab1cd89"
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            {
              "url": "https://git.kernel.org/stable/c/3f25b5f1635449036692a44b771f39f772190c1d"
            },
            {
              "url": "https://git.kernel.org/stable/c/f75625db838ade28f032dacd0f0c8baca42ecde4"
            },
            {
              "url": "https://git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b"
            }
          ],
          "title": "net: dsa: mv88e6xxx: Correct check for empty list",
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      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-42224",
        "datePublished": "2024-07-30T07:47:05.608Z",
        "dateReserved": "2024-07-30T07:40:12.250Z",
        "dateUpdated": "2025-11-03T22:02:27.444Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.