CVE-2023-54240 (GCVE-0-2023-54240)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:11 – Updated: 2025-12-30 12:11
VLAI?
Title
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < 7776591e5ae2befff86579f68916a171971c6aab (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < 751b2e22a188b0c306029d094da29b6b8de31430 (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < 653fbddbdfc6673bba01b13dae5a4384ad8f92ec (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < 75f2de75c1182e80708c932418e4895dbc88b68f (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < 072324cfab9b96071c0782f51f53cc5aea1e9d5b (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < ff5faed5f5487b0fd2b640ba1304f82a5ebaab42 (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < fe0195fe48f85182bc7e7eabcad925bd3cbc10f5 (git)
Affected: 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd , < e4c79810755f66c9a933ca810da2724133b1165a (git)
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    Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 4.14.326 , ≤ 4.14.* (semver)
Unaffected: 4.19.295 , ≤ 4.19.* (semver)
Unaffected: 5.4.257 , ≤ 5.4.* (semver)
Unaffected: 5.10.195 , ≤ 5.10.* (semver)
Unaffected: 5.15.132 , ≤ 5.15.* (semver)
Unaffected: 6.1.54 , ≤ 6.1.* (semver)
Unaffected: 6.5.4 , ≤ 6.5.* (semver)
Unaffected: 6.6 , ≤ * (original_commit_for_fix)
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mediatek/mtk_eth_soc.c"
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.9"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.195",
              "versionType": "semver"
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              "lessThanOrEqual": "5.15.*",
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              "version": "6.5.4",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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      "descriptions": [
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          "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"
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      "title": "net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()",
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    "datePublished": "2025-12-30T12:11:29.039Z",
    "dateReserved": "2025-12-30T12:06:44.509Z",
    "dateUpdated": "2025-12-30T12:11:29.039Z",
    "state": "PUBLISHED"
  },
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  }
}


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Sightings

Author Source Type Date

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.