{
  "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-2026-64363",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64363",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T08:50:18.824Z",
    "updatedAt": "2026-08-17T04:54:10.084Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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: appleir: fix UAF on pending key_up_timer in remove()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: appleir: fix UAF on pending key_up_timer in remove()\n\nappleir_remove() runs hid_hw_stop() before timer_delete_sync().\nhid_hw_stop() synchronously unregisters the HID input device via\nhid_disconnect() -> hidinput_disconnect() -> input_unregister_device(),\nwhich drops the last reference and frees the underlying input_dev when\nno userspace handle holds it open.\n\nkey_up_tick() reads appleir->input_dev and calls input_report_key() /\ninput_sync() on it.  The timer is armed from appleir_raw_event() with\na HZ/8 (~125 ms) timeout on every keydown and key-repeat report.  If a\nkey was pressed shortly before the device is disconnected, the timer\ncan fire after hid_hw_stop() has freed input_dev but before the\nteardown drains it.\n\nA simple reorder is not sufficient.  Putting the timer drain first\nstill leaves a window where a USB URB completion (raw_event) running\nduring hid_hw_stop() can call mod_timer() and re-arm the timer, which\nthen fires after hidinput_disconnect() has freed input_dev.  The same\nURB-completion window also lets raw_event() reach key_up(), key_down()\nand battery_flat() directly, all of which dereference\nappleir->input_dev.\n\nIntroduce a 'removing' flag on struct appleir, gated by the existing\nspinlock.  appleir_remove() sets the flag under the lock and then\nshuts down the timer with timer_shutdown_sync(), which both drains any\nin-flight callback and permanently disables further mod_timer() calls.\nappleir_raw_event() and key_up_tick() bail out early if the flag is\nset, so no path can arm or run the timer, or dereference\nappleir->input_dev, after remove() has started tearing down.\n\nThe keyrepeat and flatbattery branches of appleir_raw_event()\npreviously called into the input layer without holding the spinlock;\ntake it now so the flag check is well-defined.  This incidentally\ncloses a pre-existing read-side race on appleir->current_key in the\nkeyrepeat branch.\n\nThis bug is structurally a sibling of commit 4db2af929279 (\"HID:\nappletb-kbd: fix UAF in inactivity-timer cleanup path\") and has been\npresent since the driver was introduced.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "89ef67359672bf4cd6921524e39f61648fe38c0f"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d30a0bb0e79621ae921b487835c56198adfafa3"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "37a52c61d4f78153c38ae1f7491dfcc8ac828dcf"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "05e3decc55d1deca9410e0eb36466651fcbe57a5"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3755f6e25776b8b12ddf062f9b573f05090e4034"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b363d964ca829c1761c9f04188dfa28f90b0f2d4"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6b0838e86da88b1d3bff86f19761ff25af73eaca"
            },
            {
              "version": "9a4a5574ce427c364d81746fc7fb82d86b5f1a7e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75fe87e19d8aff81eb2c64d15d244ab8da4de945"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.10"
            },
            {
              "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": "6.18.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}