{
  "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-2026-72047",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72047",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:52:05.510Z",
    "updatedAt": "2026-08-17T05:07:12.985Z",
    "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": "ieee802154: ca8210: fix pointer truncation in kfifo on 64-bit",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: ca8210: fix pointer truncation in kfifo on 64-bit\n\nca8210_test_int_driver_write() and ca8210_test_int_user_read() exchange\na kmalloc'd buffer pointer through a struct kfifo, but pass a literal\n'4' as the byte count to kfifo_in()/kfifo_out().\n\nThis is correct on 32-bit (pointer = 4 bytes), but on 64-bit only the\nlow 4 bytes of the 8-byte pointer are written into the FIFO. The reader\nthen reads back 4 bytes into an 8-byte local pointer variable, leaving\nthe upper 4 bytes uninitialized stack data. The first dereference of\nthe reconstructed pointer (fifo_buffer[1]) accesses an arbitrary kernel\naddress and generally results in an oops.\n\nUse sizeof(fifo_buffer) so the byte count matches pointer width on every\narchitecture.\n\nThe driver has no architecture restriction in Kconfig, so any 64-bit\nbuild with CONFIG_IEEE802154_CA8210_DEBUGFS=y is exposed. Issue has\nbeen latent since the driver was added in 2017 because it is most\ncommonly deployed on 32-bit MCUs.\n\nFound via a custom Coccinelle semantic patch hunting for short-byte\nkfifo I/O on byte-mode kfifos used to shuttle pointers.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c1664ccfae653979b38788211240b5a1ee317ed"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "093aacb0c56d5c693e3169a0224062e77c3fd0c0"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "87dab14a4f68895d6f4d798e6ee3556cd64e8c72"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1fe2643d0b24ca3cdd61a31a45c2d3233dc6cbfe"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "65dc342274a01616f5c17105f7360a3b4bfd7a3d"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2059c28bd725beded01277cdf1f67be33e714323"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d8ce67fa6a5e6929f5414e933ff9665176c2bce6"
            },
            {
              "version": "ded845a781a578dfb0b5b2c138e5a067aa3b1242",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6d7f7bcf225b2d566176bf6229dbd1252940cb3c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.12"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}