# net: ipv6: keep room for the mac header in dst_dev_overhead()

CVE record · `CVE-2026-98570`

- **Identifiers:** `CVE-2026-98570`
- **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:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:18 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: `dce525185bc92864e5a318040285ee070563fe34 to before 36c07127924f11fc5741a780abcaaf808fe9ef13` (git)
  - affected: `dce525185bc92864e5a318040285ee070563fe34 to before 87cd6b717e4069dca34e0866e57eaeb44d3b173e` (git)
  - affected: `8471e228448a818e4c27cab4b681b2e758e46cf5` (git)
  - affected: `c432cd18a07b623651ed15ea167bd303467004cc` (git)
  - affected: `634710a372ba65bee667c2f6e58a97658c639eab` (git)
  - affected: `c447c5a9c47bb4858ab12bf90879fe595d2b7f46` (git)
  - affected: `ab9de9c48316d2622d3bf353916b99971570e2c9` (git)
  - affected: `2fcc9f3798ef82399564d247458e69abd10e683b` (git)
  - affected: `371d8dc298b4f59e99b4564ac5d906fce0932c69` (git)
  - affected: `b26f015dfb07b6be12d005a0ed0c5c43b7bedbf3` (git)
  - affected: `c0b11dc50590e10590b39dcda79835cd32f49d00` (git)
  - affected: `4c12c3c8abd8b888945d31e7bdbb0d8b73032fc5` (git)
  - and 9 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.14`
  - unaffected: `before 6.14` (semver)
  - unaffected: `7.2.9 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:** 0.0019, the 8th 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-2026-98570](https://www.cve.org/CVERecord?id=CVE-2026-98570)
- [NVD: CVE-2026-98570](https://nvd.nist.gov/vuln/detail/CVE-2026-98570)

### References from the CNA

- <https://git.kernel.org/stable/c/36c07127924f11fc5741a780abcaaf808fe9ef13>
- <https://git.kernel.org/stable/c/87cd6b717e4069dca34e0866e57eaeb44d3b173e>

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-2026-98570>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98570/>. Everything for agents: <https://agentprime.io/llms.txt>.