# smb: client: clear ce->tgthint in free_tgts()

CVE record · `CVE-2026-89636`

- **Identifiers:** `CVE-2026-89636`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:45 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.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before 14f60e959b5ac813715ff72e127beb3584ddabf6` (git)
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before 3ff9462bb7a06d8d32a1dc02d39580b078ec9e55` (git)
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before 7507bd1885643d0461a6017767492450af1ce2a3` (git)
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before 9ab46a13798a61d9d020b01d4e57efdabe6624fa` (git)
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before 5baab40404a9393bcc0b7b8f1950bf2c307e0984` (git)
  - affected: `54be1f6c1c37498bba557049df646cc239fa37e3 to before b1b741cf8e7ce1b91d937e23decd3d3358748700` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.0`
  - unaffected: `before 5.0` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.109 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0066, the 52nd 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89636](https://www.cve.org/CVERecord?id=CVE-2026-89636)
- [NVD: CVE-2026-89636](https://nvd.nist.gov/vuln/detail/CVE-2026-89636)

### References from the CNA

- <https://git.kernel.org/stable/c/14f60e959b5ac813715ff72e127beb3584ddabf6>
- <https://git.kernel.org/stable/c/3ff9462bb7a06d8d32a1dc02d39580b078ec9e55>
- <https://git.kernel.org/stable/c/7507bd1885643d0461a6017767492450af1ce2a3>
- <https://git.kernel.org/stable/c/9ab46a13798a61d9d020b01d4e57efdabe6624fa>
- <https://git.kernel.org/stable/c/5baab40404a9393bcc0b7b8f1950bf2c307e0984>
- <https://git.kernel.org/stable/c/b1b741cf8e7ce1b91d937e23decd3d3358748700>

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-2026-89636>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89636/>. Everything for agents: <https://agentprime.io/llms.txt>.