# module/dups: Fix use-after-free in kmod_dup_req lifetime handling

CVE record · `CVE-2026-90291`

- **Identifiers:** `CVE-2026-90291`
- **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:** 21 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: `8660484ed1cf3261e89e0bad94c6395597e87599 to before a3205bd1f218053575589b14caf8df667f344134` (git)
  - affected: `8660484ed1cf3261e89e0bad94c6395597e87599 to before 2c85e0fb528e039aa8ea1e9c2a1f64347f990541` (git)
  - affected: `8660484ed1cf3261e89e0bad94c6395597e87599 to before b2709aad7599f6fd957939b60f4a8323c8f08072` (git)
  - affected: `8660484ed1cf3261e89e0bad94c6395597e87599 to before cd2396fc9684d2cfd3f3c3f09c79d6d9d725b0ca` (git)
  - affected: `8660484ed1cf3261e89e0bad94c6395597e87599 to before 5eecb11b543f9f417bcf0dea239ff99c6af65dbd` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.4`
  - unaffected: `before 6.4` (semver)
  - unaffected: `6.6.160 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:** 0.0017, 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-2026-90291](https://www.cve.org/CVERecord?id=CVE-2026-90291)
- [NVD: CVE-2026-90291](https://nvd.nist.gov/vuln/detail/CVE-2026-90291)

### References from the CNA

- <https://git.kernel.org/stable/c/a3205bd1f218053575589b14caf8df667f344134>
- <https://git.kernel.org/stable/c/2c85e0fb528e039aa8ea1e9c2a1f64347f990541>
- <https://git.kernel.org/stable/c/b2709aad7599f6fd957939b60f4a8323c8f08072>
- <https://git.kernel.org/stable/c/cd2396fc9684d2cfd3f3c3f09c79d6d9d725b0ca>
- <https://git.kernel.org/stable/c/5eecb11b543f9f417bcf0dea239ff99c6af65dbd>

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-2026-90291>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90291/>. Everything for agents: <https://agentprime.io/llms.txt>.