# LoongArch: KVM: Validate MSI data before routing it to EIOINTC

CVE record · `CVE-2026-89907`

- **Identifiers:** `CVE-2026-89907`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **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.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 to before 506f03b5f869cbae50d31b50d80d4a5735d47f94` (git)
  - affected: `1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 to before 83715a40a2d30d23719e0b25380ba82ff905195b` (git)
  - affected: `1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 to before 501514d6ebd2111c353a1296f25dbe22fbd64657` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.13`
  - unaffected: `before 6.13` (semver)
  - unaffected: `6.18.57 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0017, the 6th percentile, on 15 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-2026-89907](https://www.cve.org/CVERecord?id=CVE-2026-89907)
- [NVD: CVE-2026-89907](https://nvd.nist.gov/vuln/detail/CVE-2026-89907)

### References from the CNA

- <https://git.kernel.org/stable/c/506f03b5f869cbae50d31b50d80d4a5735d47f94>
- <https://git.kernel.org/stable/c/83715a40a2d30d23719e0b25380ba82ff905195b>
- <https://git.kernel.org/stable/c/501514d6ebd2111c353a1296f25dbe22fbd64657>

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-2026-89907>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89907/>. Everything for agents: <https://agentprime.io/llms.txt>.