{
  "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-2026-80766",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80766",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-04T15:12:38.520Z",
    "updatedAt": "2026-10-19T08:43:22.787Z",
    "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": "HID: uclogic: fix use-after-free of inrange_timer on remove",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: uclogic: fix use-after-free of inrange_timer on remove\n\nuclogic_remove() cancels the pen in-range timer and then stops the\ndevice:\n\n\ttimer_delete_sync(&drvdata->inrange_timer);\n\thid_hw_stop(hdev);\n\ntimer_delete_sync() only guarantees the timer is idle at that instant.\nuclogic_raw_event_pen() keeps delivering pen reports until hid_hw_stop()\nstops the transport several lines later, and every report with\npen->inrange == UCLOGIC_PARAMS_PEN_INRANGE_NONE re-arms the timer:\n\n\tmod_timer(&drvdata->inrange_timer, jiffies + msecs_to_jiffies(100));\n\nA report landing between the timer_delete_sync() call and the transport\nteardown in hid_hw_stop() re-arms inrange_timer after it was cancelled.\nuclogic_remove() then returns and the devm drvdata is freed, while\nhid_hw_stop() has already freed the input device drvdata->pen_input\npoints at, so when the timer fires ~100 ms later\nuclogic_inrange_timeout() dereferences freed memory -- a use-after-free\nin timer-softirq context.\n\nSwapping the two calls is not a fix: stopping the device first frees\ndrvdata->pen_input via hidinput_disconnect() while the timer may still\nbe pending, so a timer already armed before removal fires on the freed\ninput device in the window before timer_delete_sync() runs.\n\nUse timer_shutdown_sync() before hid_hw_stop() instead. It cancels the\ntimer, waits for a running callback while pen_input is still valid, and\nprevents any further re-arming -- a later mod_timer() from an in-flight\nreport is silently ignored -- so the timer is provably dead before\nhid_hw_stop() frees the inputs. This is the ordering the timer core\ndocuments for this \"timer re-armed from another path\" teardown case.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f40243358b407aec362fe305fabfcdc94a3abd89"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dc5108f18f58870a8dd4203a02a47e571a2be7f0"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d77ac82e57ead056cf3f71d347083ed9244ad90"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e750cdb6de009aace3c77f37fe2173f96175e8e4"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "849e537160bbb77fe419ecc3944bfe125dcd441b"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f1b3ca06380531f49f988f4721d3ed30b0d7a5d2"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f13d0a00204b05e62336da0ab72ea0d87b56690c"
            },
            {
              "version": "01309e29eb95c16bd48984f2589fad0cbf5e27d1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "506fd50a9027340f0e9dcc587d10ccb03312dba6"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.1"
            },
            {
              "version": "5.15.220",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.187",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.156",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.108",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}