CVE-2023-54240 (GCVE-0-2023-54240)
Vulnerability from cvelistv5
Published
2025-12-30 12:11
Modified
2025-12-30 12:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
Version: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mediatek/mtk_eth_soc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "product": "Linux",
          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
            {
              "lessThan": "4.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.132",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.54",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.5.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()\n\nrule_locs is allocated in ethtool_get_rxnfc and the size is determined by\nrule_cnt from user space. So rule_cnt needs to be check before using\nrule_locs to avoid NULL pointer dereference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:11:29.039Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        {
          "url": "https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430"
        },
        {
          "url": "https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec"
        },
        {
          "url": "https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f"
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        {
          "url": "https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b"
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        },
        {
          "url": "https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a"
        }
      ],
      "title": "net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54240",
    "datePublished": "2025-12-30T12:11:29.039Z",
    "dateReserved": "2025-12-30T12:06:44.509Z",
    "dateUpdated": "2025-12-30T12:11:29.039Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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