# KVM: nVM: Ensure INVVPID is emulated on the correct physical CPU

CVE record · `CVE-2026-89929`

- **Identifiers:** `CVE-2026-89929`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 21 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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: `5c614b3583e7b6dab0c86356fa36c2bcbb8322a0 to before 1759a565a25c814ced9281a708749c71fa69d6fe` (git)
  - affected: `5c614b3583e7b6dab0c86356fa36c2bcbb8322a0 to before d03e721801ac54b9fdf05668aa0c069f07913b68` (git)
  - affected: `5c614b3583e7b6dab0c86356fa36c2bcbb8322a0 to before 27bdeb5fd19046ffba9ff234e92fe553eb2efb30` (git)
  - affected: `5c614b3583e7b6dab0c86356fa36c2bcbb8322a0 to before 9941850e8adf164d005dbd3774c4b79e91a3cb8e` (git)
  - affected: `5c614b3583e7b6dab0c86356fa36c2bcbb8322a0 to before 6d00e67326d831e6e610933a3800712f4ffe6ec1` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.4`
  - unaffected: `before 4.4` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 15 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89929](https://www.cve.org/CVERecord?id=CVE-2026-89929)
- [NVD: CVE-2026-89929](https://nvd.nist.gov/vuln/detail/CVE-2026-89929)

### References from the CNA

- <https://git.kernel.org/stable/c/1759a565a25c814ced9281a708749c71fa69d6fe>
- <https://git.kernel.org/stable/c/d03e721801ac54b9fdf05668aa0c069f07913b68>
- <https://git.kernel.org/stable/c/27bdeb5fd19046ffba9ff234e92fe553eb2efb30>
- <https://git.kernel.org/stable/c/9941850e8adf164d005dbd3774c4b79e91a3cb8e>
- <https://git.kernel.org/stable/c/6d00e67326d831e6e610933a3800712f4ffe6ec1>

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-2026-89929>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89929/>. Everything for agents: <https://agentprime.io/llms.txt>.