# platform/x86/amd/pmc: Propagate SMU errors and validate S2D address

CVE record · `CVE-2026-81016`

- **Identifiers:** `CVE-2026-81016`
- **State:** Confirmed
- **Severity:** CVSS 7.7 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:43 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: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 646cdcc6c7594d8ad81577b2cb05276a927edc28` (git)
  - affected: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 85ef9d4c384c1d143c51580933674d94dba3b8d9` (git)
  - affected: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 638e1ca5d4e2b4fdbb209db64926d013b34f3b79` (git)
  - affected: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 8178f59d76570b152d836bde07f5997f15861f04` (git)
  - affected: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 775d4cde1f9737796ce7d8393521e9e8c5b49891` (git)
  - affected: `3d7d407dfb05b257e15cb0c6b056428a4a8c2e5d to before 0225c1d637687b03726f00ac65b6def843d2c464` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.18`
  - unaffected: `before 5.18` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## 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

- 7.7 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0019, the 8th percentile, on 14 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-81016](https://www.cve.org/CVERecord?id=CVE-2026-81016)
- [NVD: CVE-2026-81016](https://nvd.nist.gov/vuln/detail/CVE-2026-81016)

### References from the CNA

- <https://git.kernel.org/stable/c/646cdcc6c7594d8ad81577b2cb05276a927edc28>
- <https://git.kernel.org/stable/c/85ef9d4c384c1d143c51580933674d94dba3b8d9>
- <https://git.kernel.org/stable/c/638e1ca5d4e2b4fdbb209db64926d013b34f3b79>
- <https://git.kernel.org/stable/c/8178f59d76570b152d836bde07f5997f15861f04>
- <https://git.kernel.org/stable/c/775d4cde1f9737796ce7d8393521e9e8c5b49891>
- <https://git.kernel.org/stable/c/0225c1d637687b03726f00ac65b6def843d2c464>

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-2026-81016>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-81016/>. Everything for agents: <https://agentprime.io/llms.txt>.