{
  "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-2026-23271",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-23271",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-20T08:08:46.711Z",
    "updatedAt": "2026-10-19T18:35:40.719Z",
    "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": "perf: Fix __perf_event_overflow() vs perf_remove_from_context() race",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf: Fix __perf_event_overflow() vs perf_remove_from_context() race\n\nMake sure that __perf_event_overflow() runs with IRQs disabled for all\npossible callchains. Specifically the software events can end up running\nit with only preemption disabled.\n\nThis opens up a race vs perf_event_exit_event() and friends that will go\nand free various things the overflow path expects to be present, like\nthe BPF program.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4df1a45819e50993cb351682a6ae8e7ed2d233a0"
            },
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4f8d5812337871227bb2c98669a87c306a2f86ef"
            },
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c48fdc4b4623533d86e279f51531a7ba212eb87"
            },
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3f89b61dd504c5b6711de9759e053b082f9abf12"
            },
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bb190628fe5f2a73ba762a9972ba16c5e895f73e"
            },
            {
              "version": "592903cdcbf606a838056bae6d03fc557806c914",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c9bc1753b3cc41d0e01fbca7f035258b5f4db0ae"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.31",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.31"
            },
            {
              "version": "6.1.167",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.130",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.77",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.7",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}