# usb: gadget: f_tcm: keep port count until LUN teardown completes

CVE record · `CVE-2026-80854`

- **Identifiers:** `CVE-2026-80854`
- **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:** 19 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: `c52661d60f636d17e26ad834457db333bd1df494 to before c494c5562ca69b61a82f566e3b87a445d2c28929` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before c1f359d9a5efed458946063de65ddbeaacc4f165` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before 178f59a0bccd3f66cdfa5184310f31a58b7257c4` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before ad6f0375d2e93a1d8c015463e5e92dfcb26e311b` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before 2efbfd42441d3ef8137aff2d59e9835e1d5ae780` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before 85aa61fedcb4eb13f3dc5db73f6dc359f41f5d95` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before bbd6aa311a9f4dd17822c7557451458d3d2e980b` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before eaa96a8458f54d6cf0954242ab8b1df2a6fccafa` (git)
  - affected: `c52661d60f636d17e26ad834457db333bd1df494 to before c39d0916da47d94909391876c9e5bd429ea7b1b9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.5`
  - unaffected: `before 3.5` (semver)
  - unaffected: `5.10.269 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.220 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.187 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.156 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:** 0.0018, the 7th 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-2026-80854](https://www.cve.org/CVERecord?id=CVE-2026-80854)
- [NVD: CVE-2026-80854](https://nvd.nist.gov/vuln/detail/CVE-2026-80854)

### References from the CNA

- <https://git.kernel.org/stable/c/c494c5562ca69b61a82f566e3b87a445d2c28929>
- <https://git.kernel.org/stable/c/c1f359d9a5efed458946063de65ddbeaacc4f165>
- <https://git.kernel.org/stable/c/178f59a0bccd3f66cdfa5184310f31a58b7257c4>
- <https://git.kernel.org/stable/c/ad6f0375d2e93a1d8c015463e5e92dfcb26e311b>
- <https://git.kernel.org/stable/c/2efbfd42441d3ef8137aff2d59e9835e1d5ae780>
- <https://git.kernel.org/stable/c/85aa61fedcb4eb13f3dc5db73f6dc359f41f5d95>
- <https://git.kernel.org/stable/c/bbd6aa311a9f4dd17822c7557451458d3d2e980b>
- <https://git.kernel.org/stable/c/eaa96a8458f54d6cf0954242ab8b1df2a6fccafa>
- <https://git.kernel.org/stable/c/c39d0916da47d94909391876c9e5bd429ea7b1b9>

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-2026-80854>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80854/>. Everything for agents: <https://agentprime.io/llms.txt>.