{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f0415af60f482a2192065be8b334b409495ca8a3"
            },
            {
              "fixed": "d46492fb8018d12d00651b06b9d240e747110b38"
            },
            {
              "fixed": "2703b954d306ebfe3b11e33e259759329c11b690"
            },
            {
              "fixed": "fe2f9135df43db849e74f03956d322ac20b59af7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.14.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98447.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots\n\nLOLLM noticed that the inode btree root formatting methods copy too many\nbytes -- there's only one set of keys in node blocks, not two.  This\ncauses memory corruption of whatever's beyond the buffers.",
  "id": "CVE-2026-98447",
  "modified": "2026-10-20T02:30:47.399700674Z",
  "published": "2026-10-18T15:14:57.561Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2703b954d306ebfe3b11e33e259759329c11b690"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d46492fb8018d12d00651b06b9d240e747110b38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe2f9135df43db849e74f03956d322ac20b59af7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98447.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98447"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "xfs: fix wild memcpy access when formatting ondisk rtrefcount btree roots"
}