ghsa-45pp-43qp-pmgc
Vulnerability from github
Published
2025-07-25 18:30
Modified
2025-07-25 18:30
Details

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

ipmi:msghandler: Fix potential memory corruption in ipmi_create_user()

The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption.

We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38456"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T16:15:31Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi:msghandler: Fix potential memory corruption in ipmi_create_user()\n\nThe \"intf\" list iterator is an invalid pointer if the correct\n\"intf-\u003eintf_num\" is not found.  Calling atomic_dec(\u0026intf-\u003enr_users) on\nand invalid pointer will lead to memory corruption.\n\nWe don\u0027t really need to call atomic_dec() if we haven\u0027t called\natomic_add_return() so update the if (intf-\u003ein_shutdown) path as well.",
  "id": "GHSA-45pp-43qp-pmgc",
  "modified": "2025-07-25T18:30:40Z",
  "published": "2025-07-25T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38456"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c1a6ddb99858e7d68961f74ae27caeeeca67b6a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e0d33e75c1604c3fad5586ad4dfa3b2695a3950"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cbc1670297f675854e982d23c8583900ff0cc67a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2d5c005dfc96fe857676d1d8ac46b29275cb89b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa332f5dc6fc662ad7d3200048772c96b861cf6b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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