{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1d57628ff95b32d5cfa8d8f50e07690c161e9cf0"
            },
            {
              "fixed": "3d5a87cb909c1f375f08065b20123fa5db5958d8"
            },
            {
              "fixed": "10449703200076980704894c3d68d6796182371b"
            },
            {
              "fixed": "97fc4b53dbe4a983fdf093243067fa6a64562307"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.18.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98867.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-pcache: bound the logical key offset from persistent memory\n\ncache_key_decode() takes a key's logical off from the cache device and\nlater indexes req_key_tree-\u003esubtrees[] by it in get_subtree(). An off\npast the device forms a subtree pointer outside the array, which\nrb_insert() writes through during replay.\n\nReject a key of zero length, or whose off+len (computed in 64 bits)\nexceeds the device size, before it is used.",
  "id": "CVE-2026-98867",
  "modified": "2026-10-19T02:30:46.992137900Z",
  "published": "2026-10-18T15:51:29.499Z",
  "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/10449703200076980704894c3d68d6796182371b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d5a87cb909c1f375f08065b20123fa5db5958d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97fc4b53dbe4a983fdf093243067fa6a64562307"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98867.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98867"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "dm-pcache: bound the logical key offset from persistent memory"
}