# SUNRPC: Check svc pool percpu counter allocation

CVE record · `CVE-2026-89547`

- **Identifiers:** `CVE-2026-89547`
- **State:** Confirmed
- **Severity:** CVSS 8.1 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, 19:44 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: `ccf08bed6e7a80519569456edd2ea21b7b1701c6 to before 57ac7d899409b0a9b768cf417e3bb86bcca3d4c6` (git)
  - affected: `ccf08bed6e7a80519569456edd2ea21b7b1701c6 to before 3a2b7649de76376a69f1d3ed2a539fb15907cd4d` (git)
  - affected: `ccf08bed6e7a80519569456edd2ea21b7b1701c6 to before bd1ef2cfb44d72b7aa6943e87b206eb0e30fbd0c` (git)
  - affected: `ccf08bed6e7a80519569456edd2ea21b7b1701c6 to before b541a15046976e481618726cc23db0fb22d576db` (git)
  - affected: `ccf08bed6e7a80519569456edd2ea21b7b1701c6 to before 43e11e164704dde975c9edb370de1a06bec67270` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.3`
  - unaffected: `before 6.3` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0056, the 47th 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-2026-89547](https://www.cve.org/CVERecord?id=CVE-2026-89547)
- [NVD: CVE-2026-89547](https://nvd.nist.gov/vuln/detail/CVE-2026-89547)

### References from the CNA

- <https://git.kernel.org/stable/c/57ac7d899409b0a9b768cf417e3bb86bcca3d4c6>
- <https://git.kernel.org/stable/c/3a2b7649de76376a69f1d3ed2a539fb15907cd4d>
- <https://git.kernel.org/stable/c/bd1ef2cfb44d72b7aa6943e87b206eb0e30fbd0c>
- <https://git.kernel.org/stable/c/b541a15046976e481618726cc23db0fb22d576db>
- <https://git.kernel.org/stable/c/43e11e164704dde975c9edb370de1a06bec67270>

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-2026-89547>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89547/>. Everything for agents: <https://agentprime.io/llms.txt>.