{"cve":"CVE-2026-89588","nvd":{"published":"2026-09-11T20:19:43.300","modified":"2026-10-19T09:17:55.093","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: APEI: GHES: fix ARM section length accounting after header\n\nIn ghes_handle_arm_hw_error(), after skipping the cper_sec_proc_arm\nheader with (err + 1), the remaining length was reduced by sizeof(err)\n(pointer size) instead of sizeof(*err) (structure size).\n\nThat overestimates the bytes left for cper_arm_err_info records and can\nlet the parser read past the CPER section when err_info_num is large\nenough relative to error_data_length.\n\nUse sizeof(*err) so the length accounting matches the pointer advance\nand the earlier sizeof(*err) size check.","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/452eb28e03015abec6d4bf6488ee567706ade4e1","https://git.kernel.org/stable/c/5ff385e9403e87ae33f65b8c38698d3b1e92cfde","https://git.kernel.org/stable/c/903308ea40adf0577d82eab69882faf8836326ce","https://git.kernel.org/stable/c/b48b613073c3d652cb1823c15d16f7067cf4cee4"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-89588","score":0.00185,"percentile":0.0801,"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."]}