{
  "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-2026-68449",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68449",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-12T00:51:47.140Z",
    "updatedAt": "2026-08-19T16:35:43.051Z",
    "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": "ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion bit-scanning",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: sata_dwc_460ex: fix infinite loop in NCQ tag completion bit-scanning\n\nThe hand-rolled bit-scanning loop in the NCQ completion path has an\ninfinite loop bug.  When tag_mask has only high bits set (e.g.\n0x80000000), the inner while loop left-shifts tag_mask until it\noverflows to 0.  At that point !(0 & 1) is always true and 0 <<= 1\nstays 0, causing an infinite loop in hardirq context with a spinlock\nheld.\n\nReplace the open-coded bit-scanning with __ffs() which correctly\nfinds the least significant set bit and is bounded by the width of\nthe argument.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ea9fa4dabe476f85fe73df30a6ab61a23c22fda4"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d72e8089dc332ac48293512ef0de77cbe0e04d25"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4c6e64cae2b2dab32ad9099faa339f6a72c0ce16"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8c5de0d8ab6824cfdadcbbe1be4c6c9d9f4c1f80"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1842d45f461a78988254631893329bdf4596e954"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "29b916d3556bd12a95be7c56ca391b8cd572f8be"
            },
            {
              "version": "62936009f35a6659cc3ebe0d90c754182d60da73",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c2130f6553f4a5cbdc259de069600117a995f197"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.36",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.36"
            },
            {
              "version": "5.10.265",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.216",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}