# sunrpc: route to a populated pool in svc_pool_for_cpu()

CVE record · `CVE-2026-89549`

- **Identifiers:** `CVE-2026-89549`
- **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, 19:44 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: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before 9accc25e5af0bac8479f6054e674b2c593c45281` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before 6f66d38e2a6c78d48723ea17ad86135ec80ca24b` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before d79d7b9e8acbb53e2d60f6b24afc13e2f15e691f` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before edb20e8c03aebacb409968c99d046f509c6c485a` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before 011479cf9a7657d4a3e7cc42a784ac63df594170` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before 9d04d64ad192439835ed9884d767353061c3ed6f` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before 8f766d2d0b4dabf54f8b35812df2b4f481d13316` (git)
  - affected: `bfd241600a3b0db4fe43c859f1460d0a958d924a to before f6310491c4cdb88af73aa551ec9df1f10a90c709` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.19`
  - unaffected: `before 2.6.19` (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:** 0.0071, the 54th 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-2026-89549](https://www.cve.org/CVERecord?id=CVE-2026-89549)
- [NVD: CVE-2026-89549](https://nvd.nist.gov/vuln/detail/CVE-2026-89549)

### References from the CNA

- <https://git.kernel.org/stable/c/9accc25e5af0bac8479f6054e674b2c593c45281>
- <https://git.kernel.org/stable/c/6f66d38e2a6c78d48723ea17ad86135ec80ca24b>
- <https://git.kernel.org/stable/c/d79d7b9e8acbb53e2d60f6b24afc13e2f15e691f>
- <https://git.kernel.org/stable/c/edb20e8c03aebacb409968c99d046f509c6c485a>
- <https://git.kernel.org/stable/c/011479cf9a7657d4a3e7cc42a784ac63df594170>
- <https://git.kernel.org/stable/c/9d04d64ad192439835ed9884d767353061c3ed6f>
- <https://git.kernel.org/stable/c/8f766d2d0b4dabf54f8b35812df2b4f481d13316>
- <https://git.kernel.org/stable/c/f6310491c4cdb88af73aa551ec9df1f10a90c709>

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-2026-89549>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89549/>. Everything for agents: <https://agentprime.io/llms.txt>.