{"cve":"CVE-2026-80723","nvd":{"published":"2026-08-28T08:16:58.113","modified":"2026-10-16T20:18:08.920","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: prevent OOB when too many dynamic regions are defined\n\nOn boot, fdt_scan_reserved_mem() saves each dynamically-placed\n/reserved-memory subnode into a local array of size\nMAX_RESERVED_REGIONS.\n\nIf the device tree defines more than MAX_RESERVED_REGIONS\ndynamically-placed regions, fdt_scan_reserved_mem() writes past the\nend of the local array.\n\nAdd a bounds check that logs an error and skips the excess regions,\nrestoring the original behavior.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4},"cwes":[],"references":["https://git.kernel.org/stable/c/68d27250c9e81ab7764603e346c2b1017cb53adf","https://git.kernel.org/stable/c/cfa7e2734877330d6c10e0f33953905486c4530c","https://git.kernel.org/stable/c/db3dbdfea1b8f38774419c5c2c14e4b81c48708d","https://git.kernel.org/stable/c/de8ccbd6bf4efe7a059e2c483789936009e10f42"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-80723","score":0.00132,"percentile":0.02774,"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."]}