{"id":"CVE-2026-92522","revision":"88cd3881b4584ce0bceb08300c93d777","records":[{"revision":"88cd3881b4584ce0bceb08300c93d777","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-92522","aliases":[],"title":"ACPI: processor: validate MADT IOAPIC entry bounds","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.","state":0,"publishedAt":"2026-09-17T16:10:28.823+00:00","modifiedAt":"2026-10-19T09:04:28.548+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/processor_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"5601bd81bc290a724ed47797d22c16cba4d7ed9f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"ff82e3374e9103d046b2a82f4315d9a422ff097d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"2a5520065e76000f8c979d3d7b3d861ccaaecf1e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"8e67b58c04990817ac2dbf8ae03353be6a358cd4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"74d84320f8e37955eb286a7777843d554e6e75b2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"4d8ecaa332c163f2b44aa5027bf061950b71b5f3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"355bee5f11acb116cd256588631b4028ca562646\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"ecf5636dcd59cd5508641f995cc4c2bafedbb995\",\n                            \"lessThan\": \"2c50ffdc73f3a70d745d249f509fc290754121e6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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/processor_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\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:L/I:L/A:H","score":7.3,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f","https://git.kernel.org/stable/c/ff82e3374e9103d046b2a82f4315d9a422ff097d","https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e","https://git.kernel.org/stable/c/8e67b58c04990817ac2dbf8ae03353be6a358cd4","https://git.kernel.org/stable/c/74d84320f8e37955eb286a7777843d554e6e75b2","https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3","https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646","https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-92522","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-92522","identifiers":["CVE-2026-92522"]},"retained":false,"historicalAffected":[]}],"coverage":[]}