# nfc: llcp: bound SNL TLV parsing to the skb and add length checks

CVE record · `CVE-2026-90223`

- **Identifiers:** `CVE-2026-90223`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:07 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: `19cfe5843e86cc95542d9d875c9386e197956d75 to before 88b36d36e12c9ba76decdb580d9c1907c084e587` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before 587fc2a5a35b41883b22b8f808fe5d345208914b` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before f04ac9bf2379f3e2470c400c235eb12f74891bef` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before 02030f95820c42431280f4f945ff34247fb840ff` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before 99fdb5c2522f365efa199d0117b641e35097041e` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before 749a9048bf51a668ec3ab6c0392ba32325607281` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before eeb16fb24cfe67947b832fd9ada5f488afc72579` (git)
  - affected: `19cfe5843e86cc95542d9d875c9386e197956d75 to before f4c7f37f0ab990952539dc68d931d65c3657600a` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.8`
  - unaffected: `before 3.8` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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

- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0041, the 36th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90223](https://www.cve.org/CVERecord?id=CVE-2026-90223)
- [NVD: CVE-2026-90223](https://nvd.nist.gov/vuln/detail/CVE-2026-90223)

### References from the CNA

- <https://git.kernel.org/stable/c/88b36d36e12c9ba76decdb580d9c1907c084e587>
- <https://git.kernel.org/stable/c/587fc2a5a35b41883b22b8f808fe5d345208914b>
- <https://git.kernel.org/stable/c/f04ac9bf2379f3e2470c400c235eb12f74891bef>
- <https://git.kernel.org/stable/c/02030f95820c42431280f4f945ff34247fb840ff>
- <https://git.kernel.org/stable/c/99fdb5c2522f365efa199d0117b641e35097041e>
- <https://git.kernel.org/stable/c/749a9048bf51a668ec3ab6c0392ba32325607281>
- <https://git.kernel.org/stable/c/eeb16fb24cfe67947b832fd9ada5f488afc72579>
- <https://git.kernel.org/stable/c/f4c7f37f0ab990952539dc68d931d65c3657600a>

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-2026-90223>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90223/>. Everything for agents: <https://agentprime.io/llms.txt>.