# ipv4: do not warn on route notification size race

CVE record · `CVE-2026-99071`

- **Identifiers:** `CVE-2026-99071`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:23 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: `680aea08e78c003292415518ad270bc20f9c80b1 to before 8b35e7767fdee63e57948a1ec89d9238a651f8c6` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before 096ad0cb77f8da1928d04a0d170535e14ca6311b` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before 088ba80eef85fa7a5ad8f9e7c82b403c99242b56` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before 78a1cf5c54b2f795c81fedb530755a8d01cc84f0` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before 7dfa7ca97f3ac46353edd4cc44f7733758e4535b` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before 221ef5e1e44a044790f0f54e6aa237883f475a4d` (git)
  - affected: `680aea08e78c003292415518ad270bc20f9c80b1 to before e02a5b6588161673ef75a4bc5cdfb62bd493374d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.12`
  - unaffected: `before 5.12` (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: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 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 6 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 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99071](https://www.cve.org/CVERecord?id=CVE-2026-99071)
- [NVD: CVE-2026-99071](https://nvd.nist.gov/vuln/detail/CVE-2026-99071)

### References from the CNA

- <https://git.kernel.org/stable/c/8b35e7767fdee63e57948a1ec89d9238a651f8c6>
- <https://git.kernel.org/stable/c/096ad0cb77f8da1928d04a0d170535e14ca6311b>
- <https://git.kernel.org/stable/c/088ba80eef85fa7a5ad8f9e7c82b403c99242b56>
- <https://git.kernel.org/stable/c/78a1cf5c54b2f795c81fedb530755a8d01cc84f0>
- <https://git.kernel.org/stable/c/7dfa7ca97f3ac46353edd4cc44f7733758e4535b>
- <https://git.kernel.org/stable/c/221ef5e1e44a044790f0f54e6aa237883f475a4d>
- <https://git.kernel.org/stable/c/e02a5b6588161673ef75a4bc5cdfb62bd493374d>

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-2026-99071>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99071/>. Everything for agents: <https://agentprime.io/llms.txt>.