# smb: client: fix cifsFileInfo reference leak in deferred close

CVE record · `CVE-2026-97558`

- **Identifiers:** `CVE-2026-97558`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:21 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: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before 645a7359c1f740152464edf84f1030e0cad42c9d` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before 46d98be6c34a52182ea3c2f849a3ea0e9419eaf2` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before 525c225e23d61694091f2806de553a69362a78ff` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before bbeb7a42c9ea656e17ddcbdc2d7917aa853383a6` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before a6767712902beb0f53238be485971c9a83ea1079` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before ea93759d6c2789924f4e557aed5be532207715ea` (git)
  - affected: `c3f207ab29f793b8c942ce8067ed123f18d5b81b to before 5520e89a5a4f834bced64cf2ac927001cc513a40` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.13`
  - unaffected: `before 5.13` (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: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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:** 0.0023, the 13th percentile, on 12 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97558](https://www.cve.org/CVERecord?id=CVE-2026-97558)
- [NVD: CVE-2026-97558](https://nvd.nist.gov/vuln/detail/CVE-2026-97558)

### References from the CNA

- <https://git.kernel.org/stable/c/645a7359c1f740152464edf84f1030e0cad42c9d>
- <https://git.kernel.org/stable/c/46d98be6c34a52182ea3c2f849a3ea0e9419eaf2>
- <https://git.kernel.org/stable/c/525c225e23d61694091f2806de553a69362a78ff>
- <https://git.kernel.org/stable/c/bbeb7a42c9ea656e17ddcbdc2d7917aa853383a6>
- <https://git.kernel.org/stable/c/a6767712902beb0f53238be485971c9a83ea1079>
- <https://git.kernel.org/stable/c/ea93759d6c2789924f4e557aed5be532207715ea>
- <https://git.kernel.org/stable/c/5520e89a5a4f834bced64cf2ac927001cc513a40>

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-2026-97558>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97558/>. Everything for agents: <https://agentprime.io/llms.txt>.