# RDMA/cxgb4: Free debugfs on registration failure

CVE record · `CVE-2026-90219`

- **Identifiers:** `CVE-2026-90219`
- **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, 16:07 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: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before 459b59f7ed56511d6529311cb4e5e482ebfcfb8e` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before c332d9e7dce234d8bef78271d003a68ee943b61b` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before f98e894ec029a752cf9c7f7834741bead0fb463d` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before 479a7f90060e62bdd9bb4036ec0a70bf460f6d23` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before 046425412529dbfca1433c8bef5641b271b4ab2a` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before ea41b5630fa3d9877ce9ed8832cf5575f742bfbb` (git)
  - affected: `49ea0c036ede81f126f1a9389d377999fdf5c5a1 to before fe5c16bb6252dea6025b748257ddc3b2665495b0` (git)
  - affected: `98fa991017981b52dcc4dc3924fc8e1e83e41bf4` (git)
  - affected: `af92e4a595e006b498c44b617ea38f697eca3469` (git)
  - affected: `9c0cec79e5c914662c2cf98b4a729c0fcc8c872e` (git)
  - affected: `4.19.130 to before 4.20` (semver)
  - and 2 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.8`
  - unaffected: `before 5.8` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (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:** 0.0023, the 13th 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-2026-90219](https://www.cve.org/CVERecord?id=CVE-2026-90219)
- [NVD: CVE-2026-90219](https://nvd.nist.gov/vuln/detail/CVE-2026-90219)

### References from the CNA

- <https://git.kernel.org/stable/c/459b59f7ed56511d6529311cb4e5e482ebfcfb8e>
- <https://git.kernel.org/stable/c/cd60992f09b7e83bfd3c76e3bb06b29f3e2fa0a8>
- <https://git.kernel.org/stable/c/c332d9e7dce234d8bef78271d003a68ee943b61b>
- <https://git.kernel.org/stable/c/f98e894ec029a752cf9c7f7834741bead0fb463d>
- <https://git.kernel.org/stable/c/479a7f90060e62bdd9bb4036ec0a70bf460f6d23>
- <https://git.kernel.org/stable/c/046425412529dbfca1433c8bef5641b271b4ab2a>
- <https://git.kernel.org/stable/c/ea41b5630fa3d9877ce9ed8832cf5575f742bfbb>
- <https://git.kernel.org/stable/c/fe5c16bb6252dea6025b748257ddc3b2665495b0>

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-2026-90219>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90219/>. Everything for agents: <https://agentprime.io/llms.txt>.