{
  "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-2026-74753",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-74753",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-26T14:37:00.168Z",
    "updatedAt": "2026-10-16T19:26:24.369Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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: Reject exited events as group leaders",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf: Reject exited events as group leaders\n\nperf_event_remove_on_exec() sets remove-on-exec events to the EXIT state\nand detaches their group relationships.  The event's file descriptor can\nremain open, however, and perf_event_open() currently accepts that event\nas a group leader because its early validation rejects only REVOKED and\nDEAD events.\n\nA new sibling can consequently be linked to the detached leader.  When\nthe leader is closed, perf_group_detach() observes that its\nPERF_ATTACH_GROUP bit is already clear and skips the new sibling.  The\nsibling then retains a group_leader pointer to the freed event.\n\nReject group leaders in the EXIT state.  Perform the check while holding\nthe shared context mutex so that an exec in the target task cannot detach\nthe leader between validation and group attachment.\n\n[peterz: make the earlier test fully consistent]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4cdb1b3ab96eb1b7eb70bc5c82fede334bd60df2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ce12e1170c0c78dffb9b28af6d287492ae7dd99d"
            },
            {
              "version": "39358e856fb89e62e3c8d7389a2dc4ec33dbe90e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e593031ff19a9484e8a00bc47edd447187721846"
            },
            {
              "version": "a2d5d3ee7b6e3953114726b1521e62123ab5b043",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a03413f31c196ab3894f988cdce0bb47b4fec42"
            },
            {
              "version": "06ccef0434e98058ddae7bcebc901f93d22b7653",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ce010275c531475f9d6e7efb11b9e522c74ed2e"
            },
            {
              "version": "037a3c43edfb597665dd34457cd22b14692f2ba3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fa091f46c3833fb22384f10eade2b4e1e1d0b278"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "6.6.145",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.156"
            },
            {
              "version": "6.12.96",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.108"
            },
            {
              "version": "6.18.39",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.46"
            },
            {
              "version": "7.1.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "7.1.10"
            }
          ]
        }
      ]
    }
  }
}