ghsa-7fp7-xjmp-444h
Vulnerability from github
Published
2025-09-22 21:30
Modified
2025-09-22 21:30
Details

In the Linux kernel, the following vulnerability has been resolved:

i40e: Fix potential invalid access when MAC list is empty

list_first_entry() never returns NULL - if the list is empty, it still returns a pointer to an invalid object, leading to potential invalid memory access when dereferenced.

Fix this by using list_first_entry_or_null instead of list_first_entry.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39853"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-19T16:15:44Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix potential invalid access when MAC list is empty\n\nlist_first_entry() never returns NULL - if the list is empty, it still\nreturns a pointer to an invalid object, leading to potential invalid\nmemory access when dereferenced.\n\nFix this by using list_first_entry_or_null instead of list_first_entry.",
  "id": "GHSA-7fp7-xjmp-444h",
  "modified": "2025-09-22T21:30:18Z",
  "published": "2025-09-22T21:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39853"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1eadabcf5623f1237a539b16586b4ed8ac8dffcd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c6fb929afa313d9d11f780451d113f73922fe5d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66e7cdbda74ee823ec2bf7b830ebd235c54f5ddf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/971feafe157afac443027acdc235badc6838560b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9c21fc4cebd44dd21016c61261a683af390343f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a556f06338e1d5a85af0e32ecb46e365547f92b9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2a5e74879f9b494bbd66fa93f355feacde450c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fb216d980fae6561c7c70af8ef826faf059c6515"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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