# mm: filemap: retain mapped dropbehind folios

CVE record · `CVE-2026-98223`

- **Identifiers:** `CVE-2026-98223`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 6 Oct 2026, 08:44 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: `fb7d3bc4149395c1ae99029c852eab6c28fc3c88 to before 2897601dffe576fcd87a4259102f41f7fb0cbfc8` (git)
  - affected: `fb7d3bc4149395c1ae99029c852eab6c28fc3c88 to before 77c0fade37c80e8aa16ac048a9828249055e3f66` (git)
  - affected: `fb7d3bc4149395c1ae99029c852eab6c28fc3c88 to before 848d2ce2fce15fbdc083fbf9691bfa72911033c4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.14`
  - unaffected: `before 6.14` (semver)
  - unaffected: `6.18.54 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.8 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:** 0.0017, the 5th percentile, on 10 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 6 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98223](https://www.cve.org/CVERecord?id=CVE-2026-98223)
- [NVD: CVE-2026-98223](https://nvd.nist.gov/vuln/detail/CVE-2026-98223)

### References from the CNA

- <https://git.kernel.org/stable/c/2897601dffe576fcd87a4259102f41f7fb0cbfc8>
- <https://git.kernel.org/stable/c/77c0fade37c80e8aa16ac048a9828249055e3f66>
- <https://git.kernel.org/stable/c/848d2ce2fce15fbdc083fbf9691bfa72911033c4>

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-2026-98223>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98223/>. Everything for agents: <https://agentprime.io/llms.txt>.