Answer in brief
CVE-2026-90245 records a Unknown severity vulnerability in fbdev: kyro: Validate overlay viewport coordinates. 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 | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2ac6e30a552e6f9932c21c865a5c69f40c8aef64 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <413d763439ba68e5d547538e6b6c7de97d5818a5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e8d4e4cf388daeb49704f3de10b203034f28eb90 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a6decd4e72fc5846d3b268bd085a2089213fd5ee || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <33e54e3e0b2ca959304e62c3d84f0ad49bbe1afe || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7bf36dc23bcf3496dec274a46ae0aaff4961ea03 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3 | d8c1a9579cbd8f4ac5cbd5a10f1afb5ee64adf30, 2ac6e30a552e6f9932c21c865a5c69f40c8aef64, 413d763439ba68e5d547538e6b6c7de97d5818a5, e8d4e4cf388daeb49704f3de10b203034f28eb90, a6decd4e72fc5846d3b268bd085a2089213fd5ee, 33e54e3e0b2ca959304e62c3d84f0ad49bbe1afe, 7bf36dc23bcf3496dec274a46ae0aaff4961ea03, 7b5c7bc55e13e7f5ac7b1eaf5c6d690389ea5ee3 |
| Linux/Linuxgeneric | 2.6.12 | 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: fbdev: kyro: Validate overlay viewport coordinates The overlay viewport end coordinates are computed from the viewport origin and dimensions using 32-bit unsigned arithmetic. Large input values can cause these calculations to wrap around before the resulting coordinates are passed to SetOverlayViewPort(). SetOverlayViewPort() packs the viewport coordinates into 16-bit register fields. The X coordinates are additionally adjusted by +2 and +1 before being written. Validate the coordinate calculations for 32-bit wraparound and ensure that the adjusted coordinates fit within their 16-bit register fields before calling SetOverlayViewPort(). Found by Linux Verification Center (linuxtesting.org) with SVACE.
Quoted source text, attributed separately from HOL analysis.