{
  "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-2026-98753",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98753",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T15:47:37.700Z",
    "updatedAt": "2026-10-21T12:56:28.904Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "tty: tty_port: restore TTY_IO_ERROR on activation failure",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: tty_port: restore TTY_IO_ERROR on activation failure\n\nMake sure to restore the TTY_IO_ERROR flag if activation fails to\nprevent I/O attempts on a port that is gone or powered down.\n\nThis specifically avoids issues like kernel panic due to unclocked\naccesses or NULL-pointer dereferences when accessing powered down or\nderegistered ports when a TTY ioctl races with hangup and open.\n\nNote that the flag is set again in tty_port_close() but not restoring it\non activation failure leaves a window where drivers fail to handle the\nioctl-hangup race.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "16032c980d8f71642fcdc99309c571df3fcf3328"
            },
            {
              "version": "a9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34d4f67472ef7a744970b772a8565ddc727788e2"
            },
            {
              "version": "a9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7021acc84c2e0add77a1a33152e3a1e428fdbfdb"
            },
            {
              "version": "a9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6388409b711eb91b14fa075a4d861ccc4df1cfe7"
            },
            {
              "version": "a9a37ec33a1b3e66b260ac1c29bff0aec8b89ae4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "56964f6a31238fb41d5830bb42520c5b10ff7d8f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.33",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.33"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.56",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}