{"cve":"CVE-2026-92522","nvd":{"published":"2026-09-17T17:17:55.150","modified":"2026-10-19T10:16:52.800","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor: validate MADT IOAPIC entry bounds\n\nThe IOAPIC hotplug lookup parses both MADT and _MAT records directly.\nThe MADT walk previously used a subtable's declared length to advance\nthe cursor after only locating a generic header.  The _MAT path likewise\npassed a generic header to the IOAPIC helper.\n\nValidate that a current record has a complete generic header, that its\ndeclared length is contained in the available record range, and that a\ntyped IOAPIC record contains the full fixed IOAPIC body before reading\nits fields.  Use the same relation for both MADT and _MAT provider\npaths.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","score":7.3},"cwes":[],"references":["https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e","https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6","https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646","https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3","https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-92522","score":0.00137,"percentile":0.03074,"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."]}