# net/smc: free stashed qentry before overwrite in REQ_ADD_LINK to ADD_LINK transition

CVE record · `CVE-2026-90108`

- **Identifiers:** `CVE-2026-90108`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 17 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 17 Sept 2026, 16:06 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: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before 7dd55348c0d9399a9448847819e9f3904ae507ad` (git)
  - affected: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before 056395acb7041b3a1f2baa08d89a1938a8b8776a` (git)
  - affected: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before b08aacfb226a840628151643b6a34eecf545d311` (git)
  - affected: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before 0fb9a513766071ea9d5f3bf988e39241b8e9ee3b` (git)
  - affected: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before e25a602c45c76a7130878db72bcf6f76df04bf85` (git)
  - affected: `b4ba4652b3f8b7c9bbb5786f8acf4724bdab2196 to before 036322025d6e440cb75fc6fecbba9a16b271a2ae` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.16`
  - unaffected: `before 5.16` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.6 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:** 0.0021, the 10th percentile, on 13 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 17 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90108](https://www.cve.org/CVERecord?id=CVE-2026-90108)
- [NVD: CVE-2026-90108](https://nvd.nist.gov/vuln/detail/CVE-2026-90108)

### References from the CNA

- <https://git.kernel.org/stable/c/7dd55348c0d9399a9448847819e9f3904ae507ad>
- <https://git.kernel.org/stable/c/056395acb7041b3a1f2baa08d89a1938a8b8776a>
- <https://git.kernel.org/stable/c/b08aacfb226a840628151643b6a34eecf545d311>
- <https://git.kernel.org/stable/c/0fb9a513766071ea9d5f3bf988e39241b8e9ee3b>
- <https://git.kernel.org/stable/c/e25a602c45c76a7130878db72bcf6f76df04bf85>
- <https://git.kernel.org/stable/c/036322025d6e440cb75fc6fecbba9a16b271a2ae>

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-2026-90108>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90108/>. Everything for agents: <https://agentprime.io/llms.txt>.