# net/sched: cls_api: reclaim an empty proto on the error path

CVE record · `CVE-2026-98811`

- **Identifiers:** `CVE-2026-98811`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:48 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: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 0f005c9b8b2e4c018e598cbaf490f27bebfd3d1f` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 00ad96ee96760d2f12f8c4b3a43f6c6b742c452f` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 0fc74e7d97d232095ce64cb45d25f0919df7ad4a` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 315e4fe65cf02ef052de5e6298c3088e448b7517` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before ebc9611ab154c0cd9f1320e2a73f5e936d7535a9` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 570141625d212fbbcffb9665cb45c0f04610e61a` (git)
  - affected: `8b64678e0af8f4d62a40149baedebe78503a5255 to before 0bb8eab29b55045281a4963d4557f2776cdf8cfa` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.1`
  - unaffected: `before 5.1` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0018, the 7th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98811](https://www.cve.org/CVERecord?id=CVE-2026-98811)
- [NVD: CVE-2026-98811](https://nvd.nist.gov/vuln/detail/CVE-2026-98811)

### References from the CNA

- <https://git.kernel.org/stable/c/0f005c9b8b2e4c018e598cbaf490f27bebfd3d1f>
- <https://git.kernel.org/stable/c/00ad96ee96760d2f12f8c4b3a43f6c6b742c452f>
- <https://git.kernel.org/stable/c/0fc74e7d97d232095ce64cb45d25f0919df7ad4a>
- <https://git.kernel.org/stable/c/315e4fe65cf02ef052de5e6298c3088e448b7517>
- <https://git.kernel.org/stable/c/ebc9611ab154c0cd9f1320e2a73f5e936d7535a9>
- <https://git.kernel.org/stable/c/570141625d212fbbcffb9665cb45c0f04610e61a>
- <https://git.kernel.org/stable/c/0bb8eab29b55045281a4963d4557f2776cdf8cfa>

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-2026-98811>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98811/>. Everything for agents: <https://agentprime.io/llms.txt>.