{
  "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-2023-54220",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54220",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-30T12:11:15.385Z",
    "updatedAt": "2026-10-15T21:41:42.172Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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": "serial: 8250: Fix oops for port->pm on uart_change_pm()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250: Fix oops for port->pm on uart_change_pm()\n\nUnloading a hardware specific 8250 driver can produce error \"Unable to\nhandle kernel paging request at virtual address\" about ten seconds after\nunloading the driver. This happens on uart_hangup() calling\nuart_change_pm().\n\nTurns out commit 04e82793f068 (\"serial: 8250: Reinit port->pm on port\nspecific driver unbind\") was only a partial fix. If the hardware specific\ndriver has initialized port->pm function, we need to clear port->pm too.\nJust reinitializing port->ops does not do this. Otherwise serial8250_pm()\nwill call port->pm() instead of serial8250_do_pm().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "490bf37eaabb0a857ed1ae8e75d8854e41662f1c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "66f3e55960698c874b0598277913b478ecd29573"
            },
            {
              "version": "c9e080c3005fd183c56ff8f4d75edb5da0765d2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "720a297b334e85d34099e83d1f375b92c3efedd6"
            },
            {
              "version": "d5cd2928d31042a7c0a01464f9a8d95be736421d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b653289ca6460a6552c8590b75dfa84a0140a46b"
            },
            {
              "version": "2c86a1305c1406f45ea780d06953c484ea1d9e6e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd70d0b28010d560a8be96b44fea86fe2ba016ae"
            },
            {
              "version": "1ba5594739d858e524ff0f398ee1ebfe0a8b9d41",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18e27df4f2b4e257c317ba8076f31a888f6cc64b"
            },
            {
              "version": "af4d6dbb1a92ea424ad1ba1d0c88c7fa2345d872",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c"
            },
            {
              "version": "04e82793f068d2f0ffe62fcea03d007a8cdc16a7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "375806616f8c772c33d40e112530887b37c1a816"
            },
            {
              "version": "04e82793f068d2f0ffe62fcea03d007a8cdc16a7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534"
            },
            {
              "version": "8e596aed5f2f98cf3e6e98d6fe1d689f4a319308",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.14.316",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.14.324"
            },
            {
              "version": "4.19.284",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.293"
            },
            {
              "version": "5.4.244",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.255"
            },
            {
              "version": "5.10.181",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.192"
            },
            {
              "version": "5.15.113",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.128"
            },
            {
              "version": "6.1.30",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.47"
            },
            {
              "version": "6.3.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.4"
            },
            {
              "version": "4.14.324",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.293",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.255",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.192",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.128",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}