{"api_version":"1","generated_at":"2026-09-18T02:01:25+00:00","cve":"CVE-2026-92522","urls":{"html":"https://cve.report/CVE-2026-92522","api":"https://cve.report/api/cve/CVE-2026-92522.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-92522","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-92522"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:55","updated_at":"2026-09-17 17:17:55"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/74d84320f8e37955eb286a7777843d554e6e75b2","name":"https://git.kernel.org/stable/c/74d84320f8e37955eb286a7777843d554e6e75b2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646","name":"https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8e67b58c04990817ac2dbf8ae03353be6a358cd4","name":"https://git.kernel.org/stable/c/8e67b58c04990817ac2dbf8ae03353be6a358cd4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ff82e3374e9103d046b2a82f4315d9a422ff097d","name":"https://git.kernel.org/stable/c/ff82e3374e9103d046b2a82f4315d9a422ff097d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6","name":"https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3","name":"https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f","name":"https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e","name":"https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92522","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92522","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ecf5636dcd59cd5508641f995cc4c2bafedbb995 5601bd81bc290a724ed47797d22c16cba4d7ed9f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ecf5636dcd59cd5508641f995cc4c2bafedbb995 ff82e3374e9103d046b2a82f4315d9a422ff097d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ecf5636dcd59cd5508641f995cc4c2bafedbb995 2a5520065e76000f8c979d3d7b3d861ccaaecf1e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ecf5636dcd59cd5508641f995cc4c2bafedbb995 8e67b58c04990817ac2dbf8ae03353be6a358cd4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:10:28.823Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5601bd81bc290a724ed47797d22c16cba4d7ed9f"},{"url":"https://git.kernel.org/stable/c/ff82e3374e9103d046b2a82f4315d9a422ff097d"},{"url":"https://git.kernel.org/stable/c/2a5520065e76000f8c979d3d7b3d861ccaaecf1e"},{"url":"https://git.kernel.org/stable/c/8e67b58c04990817ac2dbf8ae03353be6a358cd4"},{"url":"https://git.kernel.org/stable/c/74d84320f8e37955eb286a7777843d554e6e75b2"},{"url":"https://git.kernel.org/stable/c/4d8ecaa332c163f2b44aa5027bf061950b71b5f3"},{"url":"https://git.kernel.org/stable/c/355bee5f11acb116cd256588631b4028ca562646"},{"url":"https://git.kernel.org/stable/c/2c50ffdc73f3a70d745d249f509fc290754121e6"}],"title":"ACPI: processor: validate MADT IOAPIC entry bounds","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-92522","datePublished":"2026-09-17T16:10:28.823Z","dateReserved":"2026-09-16T12:21:13.874Z","dateUpdated":"2026-09-17T16:10:28.823Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:55","lastModifiedDate":"2026-09-17 17:17:55","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"92522","Ordinal":"1","Title":"ACPI: processor: validate MADT IOAPIC entry bounds","CVE":"CVE-2026-92522","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"92522","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"ACPI: processor: validate MADT IOAPIC entry bounds"}]}}}