ghsa-74c5-8qvv-vrf8
Vulnerability from github
Published
2025-12-30 15:30
Modified
2025-12-30 15:30
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54240"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:12Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-74c5-8qvv-vrf8",
  "modified": "2025-12-30T15:30:33Z",
  "published": "2025-12-30T15:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54240"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/072324cfab9b96071c0782f51f53cc5aea1e9d5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/653fbddbdfc6673bba01b13dae5a4384ad8f92ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/751b2e22a188b0c306029d094da29b6b8de31430"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75f2de75c1182e80708c932418e4895dbc88b68f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7776591e5ae2befff86579f68916a171971c6aab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4c79810755f66c9a933ca810da2724133b1165a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe0195fe48f85182bc7e7eabcad925bd3cbc10f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff5faed5f5487b0fd2b640ba1304f82a5ebaab42"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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