{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-23309",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23309",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-25T10:27:04.828Z",
    "updatedAt": "2026-05-11T22:04:23.455Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "tracing: Add NULL pointer check to trigger_data_free()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Add NULL pointer check to trigger_data_free()\n\nIf trigger_data_alloc() fails and returns NULL, event_hist_trigger_parse()\njumps to the out_free error path. While kfree() safely handles a NULL\npointer, trigger_data_free() does not. This causes a NULL pointer\ndereference in trigger_data_free() when evaluating\ndata->cmd_ops->set_filter.\n\nFix the problem by adding a NULL pointer check to trigger_data_free().\n\nThe problem was found by an experimental code review agent based on\ngemini-3.1-pro while reviewing backports into v6.18.y.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "c10f0efe57728508d796ae4ba7abe4c14ec3d8ef",
              "status": "affected",
              "versionType": "git",
              "lessThan": "13dcd9269e225e4c4ceabdaeebe2ce4661b54c6e"
            },
            {
              "version": "7e6556e9329bc484e9dcdab6e346d959267c0636",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59c15b9cc453b74beb9f04c6c398717e73612dc3"
            },
            {
              "version": "9b0513905e0598b9f8cfccab8e47497aed5d935d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "42b380f97d65e76e7b310facd525f730272daf57"
            },
            {
              "version": "335dfe4bc6368e70e8c15419375cf609c4f85558",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2ce8ece5a78da67834db7728edc801889a64f643"
            },
            {
              "version": "e42efbe9754da78eafe11f6bd3ca9c8a094a752a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "477469223b2b840f436ce204333de87cb17e5d93"
            },
            {
              "version": "0550069cc25f513ce1f109c88f7c1f01d63297db",
              "status": "affected",
              "versionType": "git",
              "lessThan": "457965c13f0837a289c9164b842d0860133f6274"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6.1.165",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.167"
            },
            {
              "version": "6.6.128",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.130"
            },
            {
              "version": "6.12.75",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.77"
            },
            {
              "version": "6.18.14",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.17"
            },
            {
              "version": "6.19.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.19.7"
            }
          ]
        }
      ]
    }
  }
}