# netfs: clear post-EOF pagecache when extending a file via write

CVE record · `CVE-2026-98844`

- **Identifiers:** `CVE-2026-98844`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:50 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: `153a9961b551101cd38e94e26cd92fbfd198b19b to before f8f7d86b3537e885ee620898a38b749fba8a8456` (git)
  - affected: `153a9961b551101cd38e94e26cd92fbfd198b19b to before 98f6a4589e0f5f6cf819b8dd45605efc481c06ce` (git)
  - affected: `153a9961b551101cd38e94e26cd92fbfd198b19b to before a7036a73671fc83d299bc770710fe996d9fef9ca` (git)
  - affected: `153a9961b551101cd38e94e26cd92fbfd198b19b to before 69bf14300b50631e7c2271289d347bbd1b19a06c` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.56 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.10 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:** 0.0016, the 4th percentile, on 7 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98844](https://www.cve.org/CVERecord?id=CVE-2026-98844)
- [NVD: CVE-2026-98844](https://nvd.nist.gov/vuln/detail/CVE-2026-98844)

### References from the CNA

- <https://git.kernel.org/stable/c/f8f7d86b3537e885ee620898a38b749fba8a8456>
- <https://git.kernel.org/stable/c/98f6a4589e0f5f6cf819b8dd45605efc481c06ce>
- <https://git.kernel.org/stable/c/a7036a73671fc83d299bc770710fe996d9fef9ca>
- <https://git.kernel.org/stable/c/69bf14300b50631e7c2271289d347bbd1b19a06c>

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-2026-98844>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98844/>. Everything for agents: <https://agentprime.io/llms.txt>.