# iommu/tegra241-cmdqv: Fix CMD_SYNC use-after-free on teardown

CVE record · `CVE-2026-80818`

- **Identifiers:** `CVE-2026-80818`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:13 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: `4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 to before d2ab08437e913d9e4dda4dfd0d327446ec8717fc` (git)
  - affected: `4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 to before a94309bb99eaf0c6a2ace4927864486d19458eb5` (git)
  - affected: `4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 to before 5994617e09ee6016c1b094f29d9c85cac944b477` (git)
  - affected: `4dc0d12474f9d4833c3dd96b73d61e406d3f5dc7 to before 9ff145a25c5c8a26b06ef7cf558fb536b18bba6d` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.17`
  - unaffected: `before 6.17` (semver)
  - unaffected: `6.18.47 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.11 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.1 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:** 0.0021, the 11th percentile, on 14 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80818](https://www.cve.org/CVERecord?id=CVE-2026-80818)
- [NVD: CVE-2026-80818](https://nvd.nist.gov/vuln/detail/CVE-2026-80818)

### References from the CNA

- <https://git.kernel.org/stable/c/d2ab08437e913d9e4dda4dfd0d327446ec8717fc>
- <https://git.kernel.org/stable/c/a94309bb99eaf0c6a2ace4927864486d19458eb5>
- <https://git.kernel.org/stable/c/5994617e09ee6016c1b094f29d9c85cac944b477>
- <https://git.kernel.org/stable/c/9ff145a25c5c8a26b06ef7cf558fb536b18bba6d>

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-2026-80818>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80818/>. Everything for agents: <https://agentprime.io/llms.txt>.