Answer in brief
CVE-2026-90341 records a Unknown severity vulnerability in firmware: coreboot: Validate table 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.
A CVSS score is not reported in the current record. 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 | >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <3cca0d6dd4c2636d2514234233cb02db76621607 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <f79f621215a0944c4a0e1b3b86b99e433ae8c527 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <d848fac90c6f0566e7b93066b0b86024f65f395e || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <88027241c1d2c3213bac937a1c2cb89a5775a413 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <fd93859ecfa5b6495a6863c18fd923a7666def26 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <2d98a3b89394f283f054a4a54587c14ee89acaf9 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <e82f260a74dea8cdd7857f2cc66f73d0da522bb3 || >=d384d6f43d1ec3f1225ab0275fd592c5980bd830 <a58a57a1076f8c5dae0327e3710899478c3be901 | 3cca0d6dd4c2636d2514234233cb02db76621607, f79f621215a0944c4a0e1b3b86b99e433ae8c527, d848fac90c6f0566e7b93066b0b86024f65f395e, 88027241c1d2c3213bac937a1c2cb89a5775a413, fd93859ecfa5b6495a6863c18fd923a7666def26, 2d98a3b89394f283f054a4a54587c14ee89acaf9, e82f260a74dea8cdd7857f2cc66f73d0da522bb3, a58a57a1076f8c5dae0327e3710899478c3be901 |
| Linux/Linuxgeneric | 4.12 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 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: firmware: coreboot: Validate table bounds The existing coreboot_table_populate() bounds checks limit individual entries to the mapped length. However, coreboot_table_probe() replaces the platform resource length with header and table sizes supplied by firmware before mapping the full table. A malformed table can overflow the 32-bit size addition or advertise an extent beyond the resource, causing the driver to map and parse memory outside the resource. A resource shorter than the fixed header is also mapped as though it contained a complete header. Reject resources shorter than the fixed header. After validating the signature, require a complete header, calculate the advertised extent with overflow checking, and reject extents beyond the resource before remapping the table.
Quoted source text, attributed separately from HOL analysis.