# Bluetooth: hci_conn: fix the SCO setup context lifetime

CVE record · `CVE-2026-90255`

- **Identifiers:** `CVE-2026-90255`
- **State:** Confirmed
- **Severity:** CVSS 8.8 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: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before 37cfec41365c826d5496ef5d00c9e215eee53aa2` (git)
  - affected: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before 9a2ba69cebe3fc5a3d4fa8eaaad3c42862723c27` (git)
  - affected: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before a661de0ee29d0915c5e924edf91d2be2b4d35bae` (git)
  - affected: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before c1fe3c74a89a7749cba3caa0dd91236049c66116` (git)
  - affected: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before 4d7b1c834d2775b73c65e4888e01f5af8b477fe9` (git)
  - affected: `e07a06b4eb417f5271d33ce2240e93c62d98b7b4 to before 42de40abe25db9211107af8896d0fd741f10648d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.1`
  - unaffected: `before 6.1` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0034, the 27th 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-2026-90255](https://www.cve.org/CVERecord?id=CVE-2026-90255)
- [NVD: CVE-2026-90255](https://nvd.nist.gov/vuln/detail/CVE-2026-90255)

### References from the CNA

- <https://git.kernel.org/stable/c/37cfec41365c826d5496ef5d00c9e215eee53aa2>
- <https://git.kernel.org/stable/c/9a2ba69cebe3fc5a3d4fa8eaaad3c42862723c27>
- <https://git.kernel.org/stable/c/a661de0ee29d0915c5e924edf91d2be2b4d35bae>
- <https://git.kernel.org/stable/c/c1fe3c74a89a7749cba3caa0dd91236049c66116>
- <https://git.kernel.org/stable/c/4d7b1c834d2775b73c65e4888e01f5af8b477fe9>
- <https://git.kernel.org/stable/c/42de40abe25db9211107af8896d0fd741f10648d>

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-2026-90255>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90255/>. Everything for agents: <https://agentprime.io/llms.txt>.