Answer in brief
CVE-2026-90120 records a High severity (CVSS 8.4) vulnerability in irqchip/gic-v5: Check get_logical_index() return value in MADT IAFFID parsing. 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 8.4. 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 | >=35866efa52feaf48cc54a0745851a555654e1446 <6caeb878f809bdf0aec2fdd96f3d41ef4b69fc69 || >=35866efa52feaf48cc54a0745851a555654e1446 <328affc639ce9873a7a0a3fd6b8339f19767529b | 6caeb878f809bdf0aec2fdd96f3d41ef4b69fc69, 328affc639ce9873a7a0a3fd6b8339f19767529b |
| Linux/Linuxgeneric | 7.0 | 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: irqchip/gic-v5: Check get_logical_index() return value in MADT IAFFID parsing In gic_acpi_parse_iaffid() a given MADT GICC entry might not correspond to a logical cpu recognized by the kernel, resulting in the cpu variable initialization to an error value. Currently, the get_logical_index() return value is not checked for failure, which might result in out-of-bounds memory corruption while trying to index a per_cpu variable array. Add a check to evaluate get_logical_index() return value.
Quoted source text, attributed separately from HOL analysis.