# gtp: serialize PDP context updates

CVE record · `CVE-2026-80851`

- **Identifiers:** `CVE-2026-80851`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:55 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: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before d8ebf8875fb97b3e39aa226af78f9c619e96ee31` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 6e5472c1c1619793cbadb02bccf7d2d9f826052f` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before d9a83492ffc99f228d91873473e3820300525f00` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before b4ac2a5ce5a96ec21ed48f60d30b52b1fb22c62a` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 5f77ddb2756340c1b05381674ca025d52998005e` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 3d950e98f74af9611925a5226edced02155f6ed1` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 6df4f05bc2991467939d7d80b6f7e121559cc3df` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 1e995498d29784a06a2b2899370a1926cfc8410d` (git)
  - affected: `459aa660eb1d8ce67080da1983bb81d716aa5a69 to before 498386b6d402737db1e2eeed4c385acbf0ef9e34` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.7`
  - unaffected: `before 4.7` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.108 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.49 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.13 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.3 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 9th percentile, on 14 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80851](https://www.cve.org/CVERecord?id=CVE-2026-80851)
- [NVD: CVE-2026-80851](https://nvd.nist.gov/vuln/detail/CVE-2026-80851)

### References from the CNA

- <https://git.kernel.org/stable/c/d8ebf8875fb97b3e39aa226af78f9c619e96ee31>
- <https://git.kernel.org/stable/c/6e5472c1c1619793cbadb02bccf7d2d9f826052f>
- <https://git.kernel.org/stable/c/d9a83492ffc99f228d91873473e3820300525f00>
- <https://git.kernel.org/stable/c/b4ac2a5ce5a96ec21ed48f60d30b52b1fb22c62a>
- <https://git.kernel.org/stable/c/5f77ddb2756340c1b05381674ca025d52998005e>
- <https://git.kernel.org/stable/c/3d950e98f74af9611925a5226edced02155f6ed1>
- <https://git.kernel.org/stable/c/6df4f05bc2991467939d7d80b6f7e121559cc3df>
- <https://git.kernel.org/stable/c/1e995498d29784a06a2b2899370a1926cfc8410d>
- <https://git.kernel.org/stable/c/498386b6d402737db1e2eeed4c385acbf0ef9e34>

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-2026-80851>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80851/>. Everything for agents: <https://agentprime.io/llms.txt>.