# vhost/vdpa: reject VRING_NUM larger than device max

CVE record · `CVE-2026-97994`

- **Identifiers:** `CVE-2026-97994`
- **State:** Confirmed
- **Severity:** No CVSS score
- **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, 10:23 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: `4c8cf31885f69e86be0b5b9e6677a26797365e1d to before 4875c65ca53797a0a402fe2bb54d1b12f28b3cda` (git)
  - affected: `4c8cf31885f69e86be0b5b9e6677a26797365e1d to before 1d09201d81b7d3e276860cc7b7dbf6c6cbe8e9b4` (git)
  - affected: `4c8cf31885f69e86be0b5b9e6677a26797365e1d to before 68232102f20fc961327fb9e0f605a7eaadf030a9` (git)
  - affected: `4c8cf31885f69e86be0b5b9e6677a26797365e1d to before 59522639a7d71cff4e20d594d0b9ea30dd0c77e0` (git)
  - affected: `4c8cf31885f69e86be0b5b9e6677a26797365e1d to before ccb1dc7c527f8c925925cf92afc76ae590dac311` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.7`
  - unaffected: `before 5.7` (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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th 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-2026-97994](https://www.cve.org/CVERecord?id=CVE-2026-97994)
- [NVD: CVE-2026-97994](https://nvd.nist.gov/vuln/detail/CVE-2026-97994)

### References from the CNA

- <https://git.kernel.org/stable/c/4875c65ca53797a0a402fe2bb54d1b12f28b3cda>
- <https://git.kernel.org/stable/c/1d09201d81b7d3e276860cc7b7dbf6c6cbe8e9b4>
- <https://git.kernel.org/stable/c/68232102f20fc961327fb9e0f605a7eaadf030a9>
- <https://git.kernel.org/stable/c/59522639a7d71cff4e20d594d0b9ea30dd0c77e0>
- <https://git.kernel.org/stable/c/ccb1dc7c527f8c925925cf92afc76ae590dac311>

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-2026-97994>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-97994/>. Everything for agents: <https://agentprime.io/llms.txt>.