# smb: client: fix smbd_connection leak on cifs_get_tcp_session() error

CVE record · `CVE-2026-98172`

- **Identifiers:** `CVE-2026-98172`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:44 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: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before c295f6505aec085d73e8dcea9f648c8af1b9da8c` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before 45a97df1b7fe6c1ca5493f8fb5284203991aeeb9` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before 3164402c58940ff58a3cecdb026405f07b0253af` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before e3344bb0ff5ec8a276f42239e140f5442841ef23` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before 5c908e49d349266dff0c86dda6a05df0ff19b824` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before 928edc4bd6a617caabeb575fc13c254d9df623c4` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before b26a3fcf2f1c2cadba400290b639f01395db8fc8` (git)
  - affected: `2f8946464b11822169b9f10c7cf58a2440b51d54 to before e75c96157d45e498970158c8f7373d90102e33b9` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.16`
  - unaffected: `before 4.16` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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 11 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98172](https://www.cve.org/CVERecord?id=CVE-2026-98172)
- [NVD: CVE-2026-98172](https://nvd.nist.gov/vuln/detail/CVE-2026-98172)

### References from the CNA

- <https://git.kernel.org/stable/c/c295f6505aec085d73e8dcea9f648c8af1b9da8c>
- <https://git.kernel.org/stable/c/45a97df1b7fe6c1ca5493f8fb5284203991aeeb9>
- <https://git.kernel.org/stable/c/3164402c58940ff58a3cecdb026405f07b0253af>
- <https://git.kernel.org/stable/c/e3344bb0ff5ec8a276f42239e140f5442841ef23>
- <https://git.kernel.org/stable/c/5c908e49d349266dff0c86dda6a05df0ff19b824>
- <https://git.kernel.org/stable/c/928edc4bd6a617caabeb575fc13c254d9df623c4>
- <https://git.kernel.org/stable/c/b26a3fcf2f1c2cadba400290b639f01395db8fc8>
- <https://git.kernel.org/stable/c/e75c96157d45e498970158c8f7373d90102e33b9>

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-2026-98172>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98172/>. Everything for agents: <https://agentprime.io/llms.txt>.