{
  "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-2022-49410",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49410",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T02:12:33.124Z",
    "updatedAt": "2026-08-05T08:55:04.239Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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: Fix potential double free in create_var_ref()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential double free in create_var_ref()\n\nIn create_var_ref(), init_var_ref() is called to initialize the fields\nof variable ref_field, which is allocated in the previous function call\nto create_hist_field(). Function init_var_ref() allocates the\ncorresponding fields such as ref_field->system, but frees these fields\nwhen the function encounters an error. The caller later calls\ndestroy_hist_field() to conduct error handling, which frees the fields\nand the variable itself. This results in double free of the fields which\nare already freed in the previous function.\n\nFix this by storing NULL to the corresponding fields when they are freed\nin init_var_ref().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f8b383f83cb573152c577eca1ef101e89995b72a"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c27f744ceefadc7bbeb14233b6abc150ced617d2"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "058cb6d86b9789377216c936506b346aaa1eb581"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "37443b3508b8cce6832f8d25cb4550b2f7801f50"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4fdfb15e08598711dbf50daf56a33965232daf0e"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd83ff3bbfb003832481c9bff999d12385f396ae"
            },
            {
              "version": "067fe038e70f6e64960d26a79c4df5f1413d0f13",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99696a2592bca641eb88cc9a80c90e591afebd0f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.17"
            },
            {
              "version": "4.19.247",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.121",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.17.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}