{
  "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-2025-40126",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40126",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-11-12T10:23:20.460Z",
    "updatedAt": "2026-05-23T16:01:29.763Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC\n\nThe referenced commit introduced exception handlers on user-space memory\nreferences in copy_from_user and copy_to_user. These handlers return from\nthe respective function and calculate the remaining bytes left to copy\nusing the current register contents. This commit fixes a couple of bad\ncalculations. This will fix the return value of copy_from_user and\ncopy_to_user in the faulting case. The behaviour of memcpy stays unchanged.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0bf3dc3a2156f1c5ddaba4b85d09767874634114"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "41c18baee66134e6ef786eb075c1b6adb22432b0"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59424dc0d0e044b2eb007686a4724ddd91d57db5"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9b137f277cc3297044aabd950f589e505d30104c"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "674ff598148a28bae0b5372339de56f2abf0b1d1"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7de3a75bbc8465d816336c74d50109e73501efab"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "57c278500fce3cd4e1c540700c0b05426a958393"
            },
            {
              "version": "cb736fdbb208eb3420f1a2eb2bfc024a6e9dcada",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4fba1713001195e59cfc001ff1f2837dab877efb"
            },
            {
              "version": "1731d90d8a558ecb20cdee0c2c001ae8e15c251d",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "b0580eadc19ff3a617a7d07cfaf2a985153c114e",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.4.34",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.8.10",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.9"
            },
            {
              "version": "5.4.301",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.246",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.195",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.156",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.53",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}