AZL-102891
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-102891.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-102891
- Upstream
- Published
- 2026-09-17T17:17:20Z
- Modified
- 2026-09-18T14:16:35Z
- Summary
- CVE-2026-90245 affecting package kernel 6.6.150.1-1
- Details
-
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.
- References