FKIE_CVE-2023-54240

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 06:47
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "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",
          "versions": [
            {
              "lessThan": "7776591e5ae2befff86579f68916a171971c6aab",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "751b2e22a188b0c306029d094da29b6b8de31430",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "653fbddbdfc6673bba01b13dae5a4384ad8f92ec",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "75f2de75c1182e80708c932418e4895dbc88b68f",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "072324cfab9b96071c0782f51f53cc5aea1e9d5b",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "ff5faed5f5487b0fd2b640ba1304f82a5ebaab42",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "fe0195fe48f85182bc7e7eabcad925bd3cbc10f5",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            },
            {
              "lessThan": "e4c79810755f66c9a933ca810da2724133b1165a",
              "status": "affected",
              "version": "7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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",
          "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"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: ethernet: mtk_eth_soc: correcci\u00f3n de posible desreferencia de puntero NULL en mtk_hwlro_get_fdir_all()\n\nrule_locs se asigna en ethtool_get_rxnfc y el tama\u00f1o es determinado por rule_cnt del espacio de usuario. Por lo tanto, rule_cnt debe ser verificado antes de usar rule_locs para evitar la desreferencia de puntero NULL."
    }
  ],
  "id": "CVE-2023-54240",
  "lastModified": "2026-06-17T06:47:04.483",
  "metrics": {},
  "published": "2025-12-30T13:16:12.540",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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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

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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.