# ksmbd: fill in FileSysIdentifier in FS_POSIX_INFORMATION

CVE record · `CVE-2026-99115`

- **Identifiers:** `CVE-2026-99115`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 28 Oct 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 28 Oct 2026, 10:34 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: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before cb9fbcaf1f3351bea771eec557fc6c4d2f35762b` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before 1d644ab9eac767d52c9b8dc0eb68c0085994d9b6` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before da2ec27fdd7effbe4c94ec15b6c6a281800c5123` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before f5c50f69a70fe22c44a50c869c8cd65fc35a0686` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before beba2ef6f66a71f20531ac70a1acb0b221e362e9` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before ab057f271ef60ff8163818badc3de75c480eca07` (git)
  - affected: `e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to before db2267b27c054a6c2151ff7fbb67927e784f31d6` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.161 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.115 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.59 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.13 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:** 0.0017, the 6th percentile, on 5 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 28 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-99115](https://www.cve.org/CVERecord?id=CVE-2026-99115)
- [NVD: CVE-2026-99115](https://nvd.nist.gov/vuln/detail/CVE-2026-99115)

### References from the CNA

- <https://git.kernel.org/stable/c/cb9fbcaf1f3351bea771eec557fc6c4d2f35762b>
- <https://git.kernel.org/stable/c/1d644ab9eac767d52c9b8dc0eb68c0085994d9b6>
- <https://git.kernel.org/stable/c/da2ec27fdd7effbe4c94ec15b6c6a281800c5123>
- <https://git.kernel.org/stable/c/f5c50f69a70fe22c44a50c869c8cd65fc35a0686>
- <https://git.kernel.org/stable/c/beba2ef6f66a71f20531ac70a1acb0b221e362e9>
- <https://git.kernel.org/stable/c/ab057f271ef60ff8163818badc3de75c480eca07>
- <https://git.kernel.org/stable/c/db2267b27c054a6c2151ff7fbb67927e784f31d6>

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-2026-99115>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-99115/>. Everything for agents: <https://agentprime.io/llms.txt>.