# drm/amdkfd: Validate CRIU-restored IDs before idr_alloc

CVE record · `CVE-2026-80870`

- **Identifiers:** `CVE-2026-80870`
- **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:** 4 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 16:48 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: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before f8687018f24037056692c1e93c7d96cc72889d5b` (git)
  - affected: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before 89a75e3349c4fae28cbedc711bc924cbc6293da2` (git)
  - affected: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before 085ea93bda71fee600cc12a17026598eb10dd1f9` (git)
  - affected: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before 543ed0f61d56501cc585162da600bbedd7c08c0f` (git)
  - affected: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before cb6311f25a096621ac7ffd91b50d1bb1cfb63a96` (git)
  - affected: `40e8a766a761f7fdc8530347527b344fddf6f1a8 to before 85043dd49c2f51a37b22618168e3ae59ab92f0d6` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.18`
  - unaffected: `before 5.18` (semver)
  - unaffected: `6.1.178 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.145 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.97 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.40 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.5 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2 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 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-2026-80870](https://www.cve.org/CVERecord?id=CVE-2026-80870)
- [NVD: CVE-2026-80870](https://nvd.nist.gov/vuln/detail/CVE-2026-80870)

### References from the CNA

- <https://git.kernel.org/stable/c/f8687018f24037056692c1e93c7d96cc72889d5b>
- <https://git.kernel.org/stable/c/89a75e3349c4fae28cbedc711bc924cbc6293da2>
- <https://git.kernel.org/stable/c/085ea93bda71fee600cc12a17026598eb10dd1f9>
- <https://git.kernel.org/stable/c/543ed0f61d56501cc585162da600bbedd7c08c0f>
- <https://git.kernel.org/stable/c/cb6311f25a096621ac7ffd91b50d1bb1cfb63a96>
- <https://git.kernel.org/stable/c/85043dd49c2f51a37b22618168e3ae59ab92f0d6>

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-2026-80870>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80870/>. Everything for agents: <https://agentprime.io/llms.txt>.