# nfsd: fix cpntf publish race in nfs4_init_cp_state

CVE record · `CVE-2026-89684`

- **Identifiers:** `CVE-2026-89684`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:46 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: `624322f1adc58acd0b69f77a6ddc764207e97241 to before 63e18fc65587fd3f7b4c6d70e96d32fc41d82ba3` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before 6ac469a274e3c7d87fc46ba46d83b95009680407` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before 8eeca993357a0bc35aaefebfd7462ac7b0a21d9a` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before bfeac42d9074e539bacd1898dd8c14b7f5776620` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before 21d6c5957f5ca97d7352e60f55ea412beb9419f5` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before a631a26a8777bb235eabd478bbbaf26a4db750bf` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before c7270f62e7a05a2ee68aa2b74262b658a14463bd` (git)
  - affected: `624322f1adc58acd0b69f77a6ddc764207e97241 to before be3a5c1d857b0dcbc11796cea603ef25834f75b2` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.6`
  - unaffected: `before 5.6` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0050, the 43rd 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-2026-89684](https://www.cve.org/CVERecord?id=CVE-2026-89684)
- [NVD: CVE-2026-89684](https://nvd.nist.gov/vuln/detail/CVE-2026-89684)

### References from the CNA

- <https://git.kernel.org/stable/c/63e18fc65587fd3f7b4c6d70e96d32fc41d82ba3>
- <https://git.kernel.org/stable/c/6ac469a274e3c7d87fc46ba46d83b95009680407>
- <https://git.kernel.org/stable/c/8eeca993357a0bc35aaefebfd7462ac7b0a21d9a>
- <https://git.kernel.org/stable/c/bfeac42d9074e539bacd1898dd8c14b7f5776620>
- <https://git.kernel.org/stable/c/21d6c5957f5ca97d7352e60f55ea412beb9419f5>
- <https://git.kernel.org/stable/c/a631a26a8777bb235eabd478bbbaf26a4db750bf>
- <https://git.kernel.org/stable/c/c7270f62e7a05a2ee68aa2b74262b658a14463bd>
- <https://git.kernel.org/stable/c/be3a5c1d857b0dcbc11796cea603ef25834f75b2>

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-2026-89684>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89684/>. Everything for agents: <https://agentprime.io/llms.txt>.