{"cve":"CVE-2026-98867","nvd":{"published":"2026-10-18T16:17:41.220","modified":"2026-10-19T10:19:50.747","status":"Received","description":"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->subtrees[] 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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/10449703200076980704894c3d68d6796182371b","https://git.kernel.org/stable/c/3d5a87cb909c1f375f08065b20123fa5db5958d8","https://git.kernel.org/stable/c/97fc4b53dbe4a983fdf093243067fa6a64562307"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98867","score":0.00155,"percentile":0.0454,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}