{"id":"CVE-2026-89588","revision":"f30a0862e02844319a798a770ac7531f","records":[{"revision":"f30a0862e02844319a798a770ac7531f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89588","aliases":[],"title":"ACPI: APEI: GHES: fix ARM section length accounting after header","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.","state":0,"publishedAt":"2026-09-11T19:44:52.842+00:00","modifiedAt":"2026-10-19T08:49:20.945+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/acpi/apei/ghes.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"242c652849d979d0133c315a42d9acea0ff88390\",\n                            \"lessThan\": \"5ff385e9403e87ae33f65b8c38698d3b1e92cfde\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"136093ba4161e0080088abff48273f6830a47766\",\n                            \"lessThan\": \"452eb28e03015abec6d4bf6488ee567706ade4e1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"87880af2d24e62a84ed19943dbdd524f097172f2\",\n                            \"lessThan\": \"b48b613073c3d652cb1823c15d16f7067cf4cee4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"87880af2d24e62a84ed19943dbdd524f097172f2\",\n                            \"lessThan\": \"903308ea40adf0577d82eab69882faf8836326ce\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.12.75\",\n                            \"lessThan\": \"6.12.109\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.16\",\n                            \"lessThan\": \"6.18.50\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.6\",\n                            \"lessThan\": \"6.20\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/acpi/apei/ghes.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.109\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/5ff385e9403e87ae33f65b8c38698d3b1e92cfde","https://git.kernel.org/stable/c/452eb28e03015abec6d4bf6488ee567706ade4e1","https://git.kernel.org/stable/c/b48b613073c3d652cb1823c15d16f7067cf4cee4","https://git.kernel.org/stable/c/903308ea40adf0577d82eab69882faf8836326ce"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89588","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89588","identifiers":["CVE-2026-89588"]},"retained":false,"historicalAffected":[]}],"coverage":[]}