{
  "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-2026-80622",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80622",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-28T06:48:41.744Z",
    "updatedAt": "2026-10-16T19:26:30.961Z",
    "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": "char: tlclk: fix use-after-free in tlclk_cleanup()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nchar: tlclk: fix use-after-free in tlclk_cleanup()\n\nThis patch improves the module cleanup process in the tlclk driver to\nprevent potential use-after-free and race conditions.\n\nCurrently, the file_operations structure does not specify the .owner\nfield, which could allow the module to be unloaded while user-space\nprocesses are still interacting with the device. Additionally, the\ntlclk_cleanup() function frees the alarm_events memory before ensuring\nthat blocked processes in the waitqueue are fully awakened and that the\nswitchover_timer has completed.\n\nTo address these cases, this patch:\n- Sets '.owner = THIS_MODULE' in tlclk_fops to safely defer module\n  unloading while the device is in use.\n- Updates tlclk_cleanup() to explicitly wake up all blocked readers\n  (wake_up_all), properly release hardware I/O regions, and safely\n  delete the timer (timer_delete_sync) prior to freeing memory.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "09d8d2a46a9ec9ff728f3159a174a2ab25dd0f0a"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "96902299a22d126ef5eb3f45cd5d8ceea9e6a735"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "166dd1d5265e067459e674c11688919901813ec2"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "764723bd67a6c8f53a8d8309211fb039e2ebcf49"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c3f0cd76561ae611c2d247ee96dfd559e4197cb7"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d5e4cc0d9dce79b0429da3134ac7b072ab9009f"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "42223445607a9a5df3cb1c4729abfe3a5085e7ce"
            },
            {
              "version": "1a80ba88273097933f93b1f40537337416798c70",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bbf003b7794d6ad6f939fdd29f1f1bde8ac554c1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.15"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}