# mm/mm_init: deferred_grow_zone(): fix out-of-range first_deferred_pfn

CVE record · `CVE-2026-93227`

- **Identifiers:** `CVE-2026-93227`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 15:29 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: `3acb913c9d5bd8dcf61677ccba96d349e7681cf8 to before 45489d4f95802903ab35799b400b346fa4e13151` (git)
  - affected: `3acb913c9d5bd8dcf61677ccba96d349e7681cf8 to before 84339578c2d6936ac3a93cd1f0bbaa3468a988f2` (git)
  - affected: `3acb913c9d5bd8dcf61677ccba96d349e7681cf8 to before 97090500d776c3f6d08e857e3a0a7cf092999094` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.18`
  - unaffected: `before 6.18` (semver)
  - unaffected: `6.18.50 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.4 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:** 0.0018, the 8th 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 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93227](https://www.cve.org/CVERecord?id=CVE-2026-93227)
- [NVD: CVE-2026-93227](https://nvd.nist.gov/vuln/detail/CVE-2026-93227)

### References from the CNA

- <https://git.kernel.org/stable/c/45489d4f95802903ab35799b400b346fa4e13151>
- <https://git.kernel.org/stable/c/84339578c2d6936ac3a93cd1f0bbaa3468a988f2>
- <https://git.kernel.org/stable/c/97090500d776c3f6d08e857e3a0a7cf092999094>

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-2026-93227>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-93227/>. Everything for agents: <https://agentprime.io/llms.txt>.