# RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs

CVE record · `CVE-2026-90416`

- **Identifiers:** `CVE-2026-90416`
- **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, 16:09 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: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before 1c5b4f76cd73372c5a8a4c91c95d5a31f141e091` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before 06b62758f81e27ca4c81201c22e3436c6d9ac894` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before d809cf3f0ed9255abfc73c4730bcf187151422af` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before 0b0122fcc923a0271130f5fb71af2cd7e20434d9` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before ce8dfd32a33b578c3abf178f67b4c8d36854f041` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before 4599311e78e88c893ad551aca622de2bfdf1c31f` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before c75ee076fa09778a2f9602a972dade4a0b0785f7` (git)
  - affected: `4a2da0b8c0782816f3ae6846ae7942fcbb0f8172 to before 03826bc1fa6c90405bf05831f2b501a8368dcd27` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.14`
  - unaffected: `before 4.14` (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:** 0.0022, the 12th 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-2026-90416](https://www.cve.org/CVERecord?id=CVE-2026-90416)
- [NVD: CVE-2026-90416](https://nvd.nist.gov/vuln/detail/CVE-2026-90416)

### References from the CNA

- <https://git.kernel.org/stable/c/1c5b4f76cd73372c5a8a4c91c95d5a31f141e091>
- <https://git.kernel.org/stable/c/06b62758f81e27ca4c81201c22e3436c6d9ac894>
- <https://git.kernel.org/stable/c/d809cf3f0ed9255abfc73c4730bcf187151422af>
- <https://git.kernel.org/stable/c/0b0122fcc923a0271130f5fb71af2cd7e20434d9>
- <https://git.kernel.org/stable/c/ce8dfd32a33b578c3abf178f67b4c8d36854f041>
- <https://git.kernel.org/stable/c/4599311e78e88c893ad551aca622de2bfdf1c31f>
- <https://git.kernel.org/stable/c/c75ee076fa09778a2f9602a972dade4a0b0785f7>
- <https://git.kernel.org/stable/c/03826bc1fa6c90405bf05831f2b501a8368dcd27>

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-2026-90416>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90416/>. Everything for agents: <https://agentprime.io/llms.txt>.