# RDMA/siw: Fix use-after-free in siw_accept()

CVE record · `CVE-2026-90292`

- **Identifiers:** `CVE-2026-90292`
- **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, 16:08 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: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before d57db36e74cca4763e1c2c0c6eb9f84d19813879` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before 59de5502f32895ffe9c45530327ed997b90fdf06` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before a89d120615e711ce8fce551fd291c2f387666735` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before b9e7d3d9fdb2bfcfb25d93529fdf766536b37c78` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before 8f286a8094ee32c415f9ecd2c20765beb8a18c79` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before de603f01d9ccf823e575b013ffd86ebedca9a8c5` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before 561651d6a15588cee2040755f253faca2463415c` (git)
  - affected: `6c52fdc244b5ccc468006fd65a504d4ee33743c7 to before a9394971825933074032794a5feee5211509c774` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.3`
  - unaffected: `before 5.3` (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

- 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:** 0.0016, the 5th 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-2026-90292](https://www.cve.org/CVERecord?id=CVE-2026-90292)
- [NVD: CVE-2026-90292](https://nvd.nist.gov/vuln/detail/CVE-2026-90292)

### References from the CNA

- <https://git.kernel.org/stable/c/d57db36e74cca4763e1c2c0c6eb9f84d19813879>
- <https://git.kernel.org/stable/c/59de5502f32895ffe9c45530327ed997b90fdf06>
- <https://git.kernel.org/stable/c/a89d120615e711ce8fce551fd291c2f387666735>
- <https://git.kernel.org/stable/c/b9e7d3d9fdb2bfcfb25d93529fdf766536b37c78>
- <https://git.kernel.org/stable/c/8f286a8094ee32c415f9ecd2c20765beb8a18c79>
- <https://git.kernel.org/stable/c/de603f01d9ccf823e575b013ffd86ebedca9a8c5>
- <https://git.kernel.org/stable/c/561651d6a15588cee2040755f253faca2463415c>
- <https://git.kernel.org/stable/c/a9394971825933074032794a5feee5211509c774>

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-2026-90292>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90292/>. Everything for agents: <https://agentprime.io/llms.txt>.