Answer in brief
CVE-2026-92522 records a High severity (CVSS 7.3) vulnerability in ACPI: processor: validate MADT IOAPIC entry bounds. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <5601bd81bc290a724ed47797d22c16cba4d7ed9f || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <ff82e3374e9103d046b2a82f4315d9a422ff097d || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <2a5520065e76000f8c979d3d7b3d861ccaaecf1e || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <8e67b58c04990817ac2dbf8ae03353be6a358cd4 || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <74d84320f8e37955eb286a7777843d554e6e75b2 || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <4d8ecaa332c163f2b44aa5027bf061950b71b5f3 || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <355bee5f11acb116cd256588631b4028ca562646 || >=ecf5636dcd59cd5508641f995cc4c2bafedbb995 <2c50ffdc73f3a70d745d249f509fc290754121e6 | 5601bd81bc290a724ed47797d22c16cba4d7ed9f, ff82e3374e9103d046b2a82f4315d9a422ff097d, 2a5520065e76000f8c979d3d7b3d861ccaaecf1e, 8e67b58c04990817ac2dbf8ae03353be6a358cd4, 74d84320f8e37955eb286a7777843d554e6e75b2, 4d8ecaa332c163f2b44aa5027bf061950b71b5f3, 355bee5f11acb116cd256588631b4028ca562646, 2c50ffdc73f3a70d745d249f509fc290754121e6 |
| Linux/Linuxgeneric | 4.0 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: validate MADT IOAPIC entry bounds The IOAPIC hotplug lookup parses both MADT and _MAT records directly. The MADT walk previously used a subtable's declared length to advance the cursor after only locating a generic header. The _MAT path likewise passed a generic header to the IOAPIC helper. Validate that a current record has a complete generic header, that its declared length is contained in the available record range, and that a typed IOAPIC record contains the full fixed IOAPIC body before reading its fields. Use the same relation for both MADT and _MAT provider paths.
Quoted source text, attributed separately from HOL analysis.