# mm/hugetlb_cma: fix null nodemask dereference in hugetlb_cma_alloc_frozen_folio

CVE record · `CVE-2026-89966`

- **Identifiers:** `CVE-2026-89966`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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: `eb02f14c4a2bf4c242d91c4a5d7fb57c3c0ad1b1 to before 10f616ef06c5bd2d656a0eebaf73f9b09d150c24` (git)
  - affected: `eb02f14c4a2bf4c242d91c4a5d7fb57c3c0ad1b1 to before 7b8a8ae4dd176a232e973017d2aa3c536a7275e2` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.19`
  - unaffected: `before 6.19` (semver)
  - unaffected: `7.2.5 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:** 0.0020, the 9th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89966](https://www.cve.org/CVERecord?id=CVE-2026-89966)
- [NVD: CVE-2026-89966](https://nvd.nist.gov/vuln/detail/CVE-2026-89966)

### References from the CNA

- <https://git.kernel.org/stable/c/10f616ef06c5bd2d656a0eebaf73f9b09d150c24>
- <https://git.kernel.org/stable/c/7b8a8ae4dd176a232e973017d2aa3c536a7275e2>

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-2026-89966>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89966/>. Everything for agents: <https://agentprime.io/llms.txt>.