# netfs: release readahead folios on iterator preparation failure

CVE record · `CVE-2026-80897`

- **Identifiers:** `CVE-2026-80897`
- **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:** 21 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 17:11 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: `e0186fa7436e55db10cecc2308749e2a877269a5 to before 9ef7c3c5cf771286f187aed199dac0972404cc0f` (git)
  - affected: `06fa229ceb36898e68022b5654c017d2c6582d7d to before 2c148a31ca01fc160aceec777bbc0041b0d0b8bd` (git)
  - affected: `06fa229ceb36898e68022b5654c017d2c6582d7d to before 935e7b74bb2368f215cf8c2ad4bff60ee4e7589e` (git)
  - affected: `06fa229ceb36898e68022b5654c017d2c6582d7d to before 87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.14`
  - unaffected: `before 6.14` (semver)
  - unaffected: `6.18.44 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.8 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:** 0.0021, 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-2026-80897](https://www.cve.org/CVERecord?id=CVE-2026-80897)
- [NVD: CVE-2026-80897](https://nvd.nist.gov/vuln/detail/CVE-2026-80897)

### References from the CNA

- <https://git.kernel.org/stable/c/9ef7c3c5cf771286f187aed199dac0972404cc0f>
- <https://git.kernel.org/stable/c/2c148a31ca01fc160aceec777bbc0041b0d0b8bd>
- <https://git.kernel.org/stable/c/935e7b74bb2368f215cf8c2ad4bff60ee4e7589e>
- <https://git.kernel.org/stable/c/87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6>

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-2026-80897>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80897/>. Everything for agents: <https://agentprime.io/llms.txt>.