# firmware: arm_scmi: Roll back partial protocol table registration

CVE record · `CVE-2026-92491`

- **Identifiers:** `CVE-2026-92491`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `41714150f3d148fbcd7a947869c85531b53c50d4 to before ee556d118b11c6f5b60a32c1e84f366b336ac7d7` (git)
  - affected: `2858f6e5f06440d6b9e9c3f57bc68915344830a9 to before 3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6` (git)
  - affected: `2858f6e5f06440d6b9e9c3f57bc68915344830a9 to before 456856a34906475fcf4b23879237103770dc7ef2` (git)
  - affected: `2858f6e5f06440d6b9e9c3f57bc68915344830a9 to before 826413b858ea2969e4c3e8197d0065efc47c6343` (git)
  - affected: `2858f6e5f06440d6b9e9c3f57bc68915344830a9 to before 2224b622260ba590ab56ea1585d6bf7610be25b2` (git)
  - affected: `1294e1d50d96a3990dd115fda90bb120ec53f329` (git)
  - affected: `6.1.191 to before 6.2` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.9`
  - unaffected: `before 6.9` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel's arm_scmi firmware code from 6.9 onward can leave a dangling pointer after a failed module load. The source gives few details on what an attacker needs or what they can do. Upgrade to 6.12.110, 6.18.52, 7.2.6, or 7.3 or later.

Written 12 Nov 2026.

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 11th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-92491](https://www.cve.org/CVERecord?id=CVE-2026-92491)
- [NVD: CVE-2026-92491](https://nvd.nist.gov/vuln/detail/CVE-2026-92491)

### References from the CNA

- <https://git.kernel.org/stable/c/ee556d118b11c6f5b60a32c1e84f366b336ac7d7>
- <https://git.kernel.org/stable/c/3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6>
- <https://git.kernel.org/stable/c/456856a34906475fcf4b23879237103770dc7ef2>
- <https://git.kernel.org/stable/c/826413b858ea2969e4c3e8197d0065efc47c6343>
- <https://git.kernel.org/stable/c/2224b622260ba590ab56ea1585d6bf7610be25b2>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-92491>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-92491/>. Everything for agents: <https://agentprime.io/llms.txt>.