# net/sched: cls_u32: fix duplicate handle when node ID pool is exhausted

CVE record · `CVE-2026-98104`

- **Identifiers:** `CVE-2026-98104`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:35 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: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before f4ee13ed7f7b22dcd8287fcf477ae37bd84567da` (git)
  - affected: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before 84223baf21bc9b008444ae9bc38d5fb91fe00b9d` (git)
  - affected: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before 6890e28840bae4f6805e8de981c4ec8e12a4e064` (git)
  - affected: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before feab9261b537df4ebb8350e4779bc185373059fd` (git)
  - affected: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before f594f04268d01c5fdc975f3f51fc219ea2159ac6` (git)
  - affected: `7801db8aec957fa6610efe0ee26a6c8bc0f1d73b to before d7e7e98d23f42a92d9ab7e36302bd96bd9b33b5f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.16`
  - unaffected: `before 3.16` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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:** 0.0021, the 10th percentile, on 11 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98104](https://www.cve.org/CVERecord?id=CVE-2026-98104)
- [NVD: CVE-2026-98104](https://nvd.nist.gov/vuln/detail/CVE-2026-98104)

### References from the CNA

- <https://git.kernel.org/stable/c/f4ee13ed7f7b22dcd8287fcf477ae37bd84567da>
- <https://git.kernel.org/stable/c/84223baf21bc9b008444ae9bc38d5fb91fe00b9d>
- <https://git.kernel.org/stable/c/6890e28840bae4f6805e8de981c4ec8e12a4e064>
- <https://git.kernel.org/stable/c/feab9261b537df4ebb8350e4779bc185373059fd>
- <https://git.kernel.org/stable/c/f594f04268d01c5fdc975f3f51fc219ea2159ac6>
- <https://git.kernel.org/stable/c/d7e7e98d23f42a92d9ab7e36302bd96bd9b33b5f>

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-2026-98104>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98104/>. Everything for agents: <https://agentprime.io/llms.txt>.