# Bluetooth: RFCOMM: Fix NULL tty_dev dereference in rfcomm_dev_shutdown

CVE record · `CVE-2026-99008`

- **Identifiers:** `CVE-2026-99008`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 23 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 23 Oct 2026, 12:20 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: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before b2b915042be073637d9f93dc51ef15fc0685ae8a` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before a43452d8c1015ac2f0e43ff946be5425427b02cc` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before 3f6394f6c6d1b6817065d3b402f55d437063a704` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before d5c372ad03330f02962d4860df4d355ab25487df` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before 3fd5164bdb04635caa7942ddb554b0ec699a9433` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before a661f401f83b8462f2d424e0a1a72b7681e92ea2` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before d0aef0b0374678153244f162df507106d728af39` (git)
  - affected: `cad348a17e170451ea8688b532a6ca3e98c63b60 to before 08e90633377f1b2567ab5ad6810b74c552246a07` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.12`
  - unaffected: `before 3.12` (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: `6.18.57 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.11 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 23 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99008](https://www.cve.org/CVERecord?id=CVE-2026-99008)
- [NVD: CVE-2026-99008](https://nvd.nist.gov/vuln/detail/CVE-2026-99008)

### References from the CNA

- <https://git.kernel.org/stable/c/b2b915042be073637d9f93dc51ef15fc0685ae8a>
- <https://git.kernel.org/stable/c/a43452d8c1015ac2f0e43ff946be5425427b02cc>
- <https://git.kernel.org/stable/c/3f6394f6c6d1b6817065d3b402f55d437063a704>
- <https://git.kernel.org/stable/c/d5c372ad03330f02962d4860df4d355ab25487df>
- <https://git.kernel.org/stable/c/3fd5164bdb04635caa7942ddb554b0ec699a9433>
- <https://git.kernel.org/stable/c/a661f401f83b8462f2d424e0a1a72b7681e92ea2>
- <https://git.kernel.org/stable/c/d0aef0b0374678153244f162df507106d728af39>
- <https://git.kernel.org/stable/c/08e90633377f1b2567ab5ad6810b74c552246a07>

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-2026-99008>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99008/>. Everything for agents: <https://agentprime.io/llms.txt>.