# ksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr

CVE record · `CVE-2026-93812`

- **Identifiers:** `CVE-2026-93812`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 3 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:02 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: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before 306d6f370da7e0e5532dc51c972f4ce101e42431` (git)
  - affected: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before dc55270e410ccb4d24e637c13b5c4c25bcd106d7` (git)
  - affected: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e` (git)
  - affected: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before 9b4dec75498fd0a1c9eaea680aef59c9519eb16f` (git)
  - affected: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before c521dd78e036b5e0cfd394dd2ff2218890dd9e41` (git)
  - affected: `303fff2b8c77a85c62dbde3b27c24b084144c04c to before d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.15`
  - unaffected: `before 5.15` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 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 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93812](https://www.cve.org/CVERecord?id=CVE-2026-93812)
- [NVD: CVE-2026-93812](https://nvd.nist.gov/vuln/detail/CVE-2026-93812)

### References from the CNA

- <https://git.kernel.org/stable/c/306d6f370da7e0e5532dc51c972f4ce101e42431>
- <https://git.kernel.org/stable/c/dc55270e410ccb4d24e637c13b5c4c25bcd106d7>
- <https://git.kernel.org/stable/c/c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e>
- <https://git.kernel.org/stable/c/9b4dec75498fd0a1c9eaea680aef59c9519eb16f>
- <https://git.kernel.org/stable/c/c521dd78e036b5e0cfd394dd2ff2218890dd9e41>
- <https://git.kernel.org/stable/c/d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7>

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-2026-93812>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93812/>. Everything for agents: <https://agentprime.io/llms.txt>.