{
  "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-2026-80802",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80802",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-04T15:13:16.241Z",
    "updatedAt": "2026-10-19T08:43:55.498Z",
    "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": "nfc: fdp: bound the device-reported read length and fix an skb leak",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fdp: bound the device-reported read length and fix an skb leak\n\nfdp_nci_i2c_read() takes the next packet length from two device-supplied\nbytes and never validates it. The value is a u16 used as the\ni2c_master_recv() count into a 261-byte on-stack buffer: a malicious,\ncounterfeit or malfunctioning controller (or an i2c bus interposer) can\ndrive it far past the buffer for a stack out-of-bounds write that\nclobbers the canary and return address, or below the minimum frame size\n(directly, or by truncating the computed sum) so the header/LRC strip\nand the next length read run past a short receive. Reject a length\noutside [FDP_NCI_I2C_MIN_PAYLOAD, FDP_NCI_I2C_MAX_PAYLOAD], as a\ncorrupted packet already is, and force resynchronization.\n\nThe same loop allocates one data skb per iteration and assumes a length\npacket followed by a data packet; a device that sends two data packets\nin one call leaks the first skb when the second allocation overwrites\nit. Free a previously allocated skb before allocating the next.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d9498ab9a78cb63d78dbe4f221d8cc6c91f285ee"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1fc32327b927a6e2cde086f82575c29880844228"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8d2c243b79854628ff076c38748c020042f02f57"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc3c2bd5b1ec6c7cbc8a50e32d9bcec114f25463"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d723090645b82c1cb27cfd7ebf81f0e7c96bcae"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db7e464b350969c6ea8340de00d9796e5fd5123b"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e5eec121f2c3bc4c7022613bedd9121a8aa4c949"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1aa3fc769b0c45bd19f8dab1697084c2b3f6d706"
            },
            {
              "version": "a06347c04c13e380afce0c9816df51f00b83faf1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ad21dcfeb5181af0c3ee2608808c0c0a5283aa1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.4"
            },
            {
              "version": "5.10.267",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.218",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.185",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.154",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.106",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.47",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}