ghsa-8m37-c7gh-2jmr
Vulnerability from github
Published
2025-12-24 15:30
Modified
2025-12-24 15:30
Details

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

tracing/user_events: Ensure write index cannot be negative

The write index indicates which event the data is for and accesses a per-file array. The index is passed by user processes during write() calls as the first 4 bytes. Ensure that it cannot be negative by returning -EINVAL to prevent out of bounds accesses.

Update ftrace self-test to ensure this occurs properly.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54139"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T13:16:15Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/user_events: Ensure write index cannot be negative\n\nThe write index indicates which event the data is for and accesses a\nper-file array. The index is passed by user processes during write()\ncalls as the first 4 bytes. Ensure that it cannot be negative by\nreturning -EINVAL to prevent out of bounds accesses.\n\nUpdate ftrace self-test to ensure this occurs properly.",
  "id": "GHSA-8m37-c7gh-2jmr",
  "modified": "2025-12-24T15:30:39Z",
  "published": "2025-12-24T15:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54139"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0489c2b2c3104b89f078dbcec8c744dfc157d3e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fe46b5adf18e3dc606e62c9e6a0413398a17572"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd98c93286a30cc4588dfd02453bec63c2f4acf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa7f2f5d1739452280c22727c4384a52b72ab5de"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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