{
  "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-2026-80991",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80991",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:42:48.187Z",
    "updatedAt": "2026-10-21T12:47:22.150Z",
    "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": "net: ravb: serialize PTP clock teardown",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ravb: serialize PTP clock teardown\n\nravb_ptp_interrupt() can race with ravb_ptp_stop() and pass the clock to\nptp_clock_event() while ptp_clock_unregister() is freeing it. This can\nlead to a use-after-free.\n\nUse READ_ONCE() and WRITE_ONCE() for lockless access to the clock pointer.\nAtomically detach it with xchg() before disabling PTP interrupts, then\nsynchronize all IRQs which can invoke ravb_ptp_interrupt() before\nunregistering the detached clock.\n\nA handler which read the old pointer completes before the clock is\nunregistered, while later handlers read NULL and skip the event.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a0d2f20650e81407d8e51ad2cbdc492861c74e9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b917f37bfcce919a969d66a044580a95b11df31c"
            },
            {
              "version": "a0d2f20650e81407d8e51ad2cbdc492861c74e9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "695acb5534a9e366efb47b40c7487fc56488b09b"
            },
            {
              "version": "a0d2f20650e81407d8e51ad2cbdc492861c74e9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "67a82e6f886beed0de8f8da08bb767e68fba952d"
            },
            {
              "version": "a0d2f20650e81407d8e51ad2cbdc492861c74e9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "66b50c31419e7946e9aa325a468ad9b64c961a25"
            },
            {
              "version": "a0d2f20650e81407d8e51ad2cbdc492861c74e9c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1cb9663789c5b7a12fcd419fcca6d6254c398252"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.2"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}