{
  "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-2026-64280",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64280",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T08:49:23.753Z",
    "updatedAt": "2026-08-23T12:45:39.157Z",
    "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": "fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nfpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()\n\nafu_ioctl_dma_map() accepts a 64-bit length from userspace via\nDFL_FPGA_PORT_DMA_MAP ioctl without an upper bound check. The value\nis passed to afu_dma_pin_pages() where npages is derived as\nlength >> PAGE_SHIFT and passed to pin_user_pages_fast() which takes\nint nr_pages, causing implicit truncation if length is very large.\n\nValidate map.length at the ioctl entry point before calling\nafu_dma_map_region(), rejecting values whose page count exceeds\nINT_MAX.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5352d488ce4ae5e8c68c080ad4c3a5f084ad5fbc"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d7e787eee2ea619b6dbb98890472ee73daf2e7fd"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a6a3884ff500f04f3088d6d09eec803cd35331a2"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "16381bda90b261a656ded0568630c1b857b2ebc8"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b50e6cd2395cde615f59b624819998d28c0668d6"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59070040fd12e0b78d7b4d341d9f9a183237c5ff"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb2c0eab51ae5b02d2bae7d67c2cfbec39b57231"
            },
            {
              "version": "fa8dda1edef9ebc3af467c644c5533ac97171e12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc3b071a7c8dc0f5d56defddf6e6fd5aaa3e1e27"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "5.10.266",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.217",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.184",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.148",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}