# KVM: arm64: Sign-extend VA for range-based TLBI invalidation

CVE record · `CVE-2026-89914`

- **Identifiers:** `CVE-2026-89914`
- **State:** Confirmed
- **Severity:** CVSS 9.3 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 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.

## Critical

Critical, because:

- CVSS score 9.3: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `85bba00425ae0b4b30938ebfdde6d986e5423aff to before 72bce82c4171bf330919ff1b64dc0a36c254ec7d` (git)
  - affected: `85bba00425ae0b4b30938ebfdde6d986e5423aff to before 3feb83918e30f0472e058224b926ebfe8a064fac` (git)
  - affected: `85bba00425ae0b4b30938ebfdde6d986e5423aff to before 2393470085649f0b973ecceb26fe8fc71edde0c1` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.16`
  - unaffected: `before 6.16` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0019, the 9th 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89914](https://www.cve.org/CVERecord?id=CVE-2026-89914)
- [NVD: CVE-2026-89914](https://nvd.nist.gov/vuln/detail/CVE-2026-89914)

### References from the CNA

- <https://git.kernel.org/stable/c/72bce82c4171bf330919ff1b64dc0a36c254ec7d>
- <https://git.kernel.org/stable/c/3feb83918e30f0472e058224b926ebfe8a064fac>
- <https://git.kernel.org/stable/c/2393470085649f0b973ecceb26fe8fc71edde0c1>

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-2026-89914>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-89914/>. Everything for agents: <https://agentprime.io/llms.txt>.