# ovl: fix double end_creating() on the casefold-mismatch path

CVE record · `CVE-2026-89767`

- **Identifiers:** `CVE-2026-89767`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 11 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 11 Sept 2026, 19:47 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: `dfc7da402ccc92d6e4b01a4778a3f15f2496b9af to before 2fa220bc0f84597cb6de665e5b5021c5901ddf00` (git)
  - affected: `dfc7da402ccc92d6e4b01a4778a3f15f2496b9af to before b1aa8ab78a8e87aee9e306971465408e059f839a` (git)
  - affected: `dfc7da402ccc92d6e4b01a4778a3f15f2496b9af to before 077ab8985ee278c3d8618182d335b0f0cd919e16` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.18`
  - unaffected: `before 6.18` (semver)
  - unaffected: `6.18.51 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

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th 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 11 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89767](https://www.cve.org/CVERecord?id=CVE-2026-89767)
- [NVD: CVE-2026-89767](https://nvd.nist.gov/vuln/detail/CVE-2026-89767)

### References from the CNA

- <https://git.kernel.org/stable/c/2fa220bc0f84597cb6de665e5b5021c5901ddf00>
- <https://git.kernel.org/stable/c/b1aa8ab78a8e87aee9e306971465408e059f839a>
- <https://git.kernel.org/stable/c/077ab8985ee278c3d8618182d335b0f0cd919e16>

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-2026-89767>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-89767/>. Everything for agents: <https://agentprime.io/llms.txt>.