{
  "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-2026-68146",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68146",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T11:59:11.273Z",
    "updatedAt": "2026-08-23T12:45:57.951Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "ftrace: Add global mutex to serialize trace_parser access",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Add global mutex to serialize trace_parser access\n\nIn ftrace, the trace_parser structure is allocated and initialized when\na trace file is opened, and is subsequently used across write and release\nhandlers to parse user input.\n\nThe affected handler paths and their specific functions are:\n  - Open paths: ftrace_regex_open(), ftrace_graph_open()\n  - Write paths: ftrace_regex_write(), ftrace_graph_write()\n  - Release paths: ftrace_regex_release(), ftrace_graph_release()\n\nIf userspace opens a trace file descriptor and shares it across multiple\nthreads, concurrent write calls will race on the parser's internal state,\nspecifically the 'idx', 'cont', and 'buffer' fields, leading to corrupted\ninput or undefined behavior.\n\nFix this by adding a global mutex, parser_lock, to serialize all access\nto trace_parser across write and release paths, preventing concurrent\ncorruption of parser state.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a29bc20ea5f0cb79c6287f2c6182c5eeb8e6c01f"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db76744d588086695371ecdd982694395628ba48"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1474fe4453505b6be720b5bb94be1c927de3314a"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d0dd138a06c782f8b755cd1b6f9909494514ce1"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "90be137813e1a5bdfd671e40fe28004fb959d3e4"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "65bf73bee1a4f3722208ae46afc0fa5de76b9a0a"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e807c9193d9493c7a0d039158ebb955050a76df1"
            },
            {
              "version": "689fd8b65d669b96d612ccc37d6fb87bf7ed6907",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7720b63bcef3f54c7fe288774b720a227d54a306"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.32",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.32"
            },
            {
              "version": "5.10.266",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.217",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.183",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}