{
  "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-2026-98749",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98749",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T15:47:34.347Z",
    "updatedAt": "2026-10-21T12:56:24.499Z",
    "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: serial: max3100: shut down timer before freeing port",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: max3100: shut down timer before freeing port\n\nmax3100_shutdown() stops the polling timer but returns early during\nsystem suspend. If the SPI device is unbound before resume, the serial\ncore does not call max3100_shutdown() again, so max3100_remove() frees\nthe port while the timer remains armed. max3100_timeout() may then\naccess the freed port and re-arm the timer.\n\nAdd final timer teardown to max3100_remove() and use\ntimer_shutdown_sync() to prevent a racing callback from re-arming it.\nAlso free the IRQ and destroy the workqueue there before freeing the\nport. Keep timer_delete_sync() in max3100_shutdown() so that a\nsubsequent open() can re-arm the timer.\n\nThe workqueue is created before request_irq() and destroyed on both\nrequest_irq() failure and normal shutdown. Its presence at remove thus\nidentifies the IRQ left registered when suspend bypasses shutdown.\n\nFree the IRQ before destroying the workqueue, in both\nmax3100_shutdown() and max3100_remove(), and cancel the pending work\nin between. free_irq() waits for a running interrupt handler to\nfinish and no new handler can start afterwards, so a racing handler\ncannot queue work on a workqueue that is being destroyed; the\nforce_end_work check in max3100_dowork() only narrows that window, as\na handler delayed between the check and queue_work() could still run\nafter the teardown has cleared the workqueue pointer. Cancelling the\nwork also keeps destroy_workqueue() from waiting on a queued work item\nin case remove() ever runs while the freezable workqueue is still\nfrozen, e.g. device removal during the resume window, before\nworkqueues are thawed.\n\nThis issue was found by an in-house static analysis tool.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
              "status": "affected",
              "versionType": "git",
              "lessThan": "158a07da2da720f2f98b4bea129212c6805d8ee0"
            },
            {
              "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb668620e3b163962dabe1a674725a07aa44ff4a"
            },
            {
              "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c8614981d3e6e000427de0ab2426ab68274d850"
            },
            {
              "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
              "status": "affected",
              "versionType": "git",
              "lessThan": "247b8f680876313586aed4d267bfcceddc2b4901"
            },
            {
              "version": "7831d56b0a3544cbb6f82f76c34ca95e24d5b676",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db0949bbd06db0a75b4b1076f1e25194be7d956a"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.30",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.30"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}