# RDMA/rxe: Fix UAF in ODP init error-handling path

CVE record · `CVE-2026-90423`

- **Identifiers:** `CVE-2026-90423`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **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: `d03fb5c6599e31b90c6b5f65d43d6ccc6b49eb91 to before 5f1933163327c9f1c8f2a341c6cb551aaf231ff9` (git)
  - affected: `d03fb5c6599e31b90c6b5f65d43d6ccc6b49eb91 to before 4cfb448705da3171d44d9cbe7be53ff03284d532` (git)
  - affected: `d03fb5c6599e31b90c6b5f65d43d6ccc6b49eb91 to before 51f2c8d2c99fc1f452f7113c08a35edcc4bf8732` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th 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-2026-90423](https://www.cve.org/CVERecord?id=CVE-2026-90423)
- [NVD: CVE-2026-90423](https://nvd.nist.gov/vuln/detail/CVE-2026-90423)

### References from the CNA

- <https://git.kernel.org/stable/c/5f1933163327c9f1c8f2a341c6cb551aaf231ff9>
- <https://git.kernel.org/stable/c/4cfb448705da3171d44d9cbe7be53ff03284d532>
- <https://git.kernel.org/stable/c/51f2c8d2c99fc1f452f7113c08a35edcc4bf8732>

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-2026-90423>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90423/>. Everything for agents: <https://agentprime.io/llms.txt>.