{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7f5a08c79df35e68f1a43033450c5050f12bc155"
            },
            {
              "fixed": "0489c2b2c3104b89f078dbcec8c744dfc157d3e9"
            },
            {
              "fixed": "4fe46b5adf18e3dc606e62c9e6a0413398a17572"
            },
            {
              "fixed": "fa7f2f5d1739452280c22727c4384a52b72ab5de"
            },
            {
              "fixed": "cd98c93286a30cc4588dfd02453bec63c2f4acf4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.18.0"
            },
            {
              "fixed": "6.1.28"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.2.15"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.3.0"
            },
            {
              "fixed": "6.3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54139.json"
  },
  "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": "CVE-2023-54139",
  "modified": "2026-04-01T23:07:45.678563299Z",
  "published": "2025-12-24T13:06:54.094Z",
  "references": [
    {
      "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"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54139.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54139"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "tracing/user_events: Ensure write index cannot be negative"
}