# net: openvswitch: fix use-after-free of the flow table mask array

CVE record · `CVE-2026-97611`

- **Identifiers:** `CVE-2026-97611`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:22 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: `eac87c413bf9794c14d488998a5265ea5b32f04e to before 4c98b492e9ed63f9ca3e23566d9a6a4f235944f4` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before 4016ead17acd75312c066ecd47c4b7f0a81ceaa2` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before 017dbbf0d6c319a487f68e22f56d91fc787d5525` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before 76678217cdabc41e3c74c23b45b62086ffb8fe7a` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before cd982e11684def5d4a9fcfd5354de09032828414` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before a0d18d21d48a551f82ee344e50efb8a682161489` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before 035e9c3722067648a99010711d0ce81f42572ef4` (git)
  - affected: `eac87c413bf9794c14d488998a5265ea5b32f04e to before ba4ba11ed6eb8972c69070417fc27b48deb002e8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.9`
  - unaffected: `before 5.9` (semver)
  - unaffected: `5.10.271 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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:** 0.0016, the 5th percentile, on 12 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-97611](https://www.cve.org/CVERecord?id=CVE-2026-97611)
- [NVD: CVE-2026-97611](https://nvd.nist.gov/vuln/detail/CVE-2026-97611)

### References from the CNA

- <https://git.kernel.org/stable/c/4c98b492e9ed63f9ca3e23566d9a6a4f235944f4>
- <https://git.kernel.org/stable/c/4016ead17acd75312c066ecd47c4b7f0a81ceaa2>
- <https://git.kernel.org/stable/c/017dbbf0d6c319a487f68e22f56d91fc787d5525>
- <https://git.kernel.org/stable/c/76678217cdabc41e3c74c23b45b62086ffb8fe7a>
- <https://git.kernel.org/stable/c/cd982e11684def5d4a9fcfd5354de09032828414>
- <https://git.kernel.org/stable/c/a0d18d21d48a551f82ee344e50efb8a682161489>
- <https://git.kernel.org/stable/c/035e9c3722067648a99010711d0ce81f42572ef4>
- <https://git.kernel.org/stable/c/ba4ba11ed6eb8972c69070417fc27b48deb002e8>

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-2026-97611>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97611/>. Everything for agents: <https://agentprime.io/llms.txt>.