# Bluetooth: RFCOMM: Fix initial port reference race

CVE record · `CVE-2026-98739`

- **Identifiers:** `CVE-2026-98739`
- **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:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:47 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: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before cd247e38b14df48d6b3940c4573a9f7acb10c363` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before d3dd18e85c140df72e0f2b5ee156ebfba04c06cb` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before c50360a019766fafa27318928bfea96dcce8a37d` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before 55d162aa00d1ee33c3e6fa88b71f1e2d6e1441e9` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before a03ccf1ab77380d4c4a3c56552e12de4a83efa21` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before 0a554901bd227537f79220443b2b36d585d62893` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before e5aa7fbf7a4446bb89f0b8394b2dfc1a6b6aba5b` (git)
  - affected: `80ea73378af46b0023eb2f400d26c2a60248ffaa to before 2d696c1ed3468dcb62578a3911e687110d463520` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.15`
  - unaffected: `before 3.15` (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: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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 6 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-2026-98739](https://www.cve.org/CVERecord?id=CVE-2026-98739)
- [NVD: CVE-2026-98739](https://nvd.nist.gov/vuln/detail/CVE-2026-98739)

### References from the CNA

- <https://git.kernel.org/stable/c/cd247e38b14df48d6b3940c4573a9f7acb10c363>
- <https://git.kernel.org/stable/c/d3dd18e85c140df72e0f2b5ee156ebfba04c06cb>
- <https://git.kernel.org/stable/c/c50360a019766fafa27318928bfea96dcce8a37d>
- <https://git.kernel.org/stable/c/55d162aa00d1ee33c3e6fa88b71f1e2d6e1441e9>
- <https://git.kernel.org/stable/c/a03ccf1ab77380d4c4a3c56552e12de4a83efa21>
- <https://git.kernel.org/stable/c/0a554901bd227537f79220443b2b36d585d62893>
- <https://git.kernel.org/stable/c/e5aa7fbf7a4446bb89f0b8394b2dfc1a6b6aba5b>
- <https://git.kernel.org/stable/c/2d696c1ed3468dcb62578a3911e687110d463520>

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-2026-98739>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98739/>. Everything for agents: <https://agentprime.io/llms.txt>.