# pppoatm: ensure a writable skb header and linear data

CVE record · `CVE-2026-98287`

- **Identifiers:** `CVE-2026-98287`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:45 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: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before 208ccc4d08b1897451e9ba01c016bf93ff107966` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before e6cd1bba7d113c15c00ac63671213a096fe4d686` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before ffc448eb54f5ba80d4212c1e870cdb92b0f709fa` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before 8e66c5969acd859ba72fb0a7fa895623fc1b3769` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before e2f5529b0016db7d34f411408607f5cf395a542e` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before 30992fe39e65589ed8e000425e088fa74994b811` (git)
  - affected: `4cf476ced45d7f12df30a68e833b263e7a2202d1 to before ecc7253683a3c55caa868ce0ee530fcb0044bd3c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.11`
  - unaffected: `before 5.11` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0017, the 6th percentile, on 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98287](https://www.cve.org/CVERecord?id=CVE-2026-98287)
- [NVD: CVE-2026-98287](https://nvd.nist.gov/vuln/detail/CVE-2026-98287)

### References from the CNA

- <https://git.kernel.org/stable/c/208ccc4d08b1897451e9ba01c016bf93ff107966>
- <https://git.kernel.org/stable/c/e6cd1bba7d113c15c00ac63671213a096fe4d686>
- <https://git.kernel.org/stable/c/ffc448eb54f5ba80d4212c1e870cdb92b0f709fa>
- <https://git.kernel.org/stable/c/8e66c5969acd859ba72fb0a7fa895623fc1b3769>
- <https://git.kernel.org/stable/c/e2f5529b0016db7d34f411408607f5cf395a542e>
- <https://git.kernel.org/stable/c/30992fe39e65589ed8e000425e088fa74994b811>
- <https://git.kernel.org/stable/c/ecc7253683a3c55caa868ce0ee530fcb0044bd3c>

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-2026-98287>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98287/>. Everything for agents: <https://agentprime.io/llms.txt>.