# LoongArch: Fix acpi_package_ids\[\] array overflow

CVE record · `CVE-2026-89904`

- **Identifiers:** `CVE-2026-89904`
- **State:** Confirmed
- **Severity:** CVSS 8.4 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: `f18992be262d6515c94bf4bf6ce7598135076771 to before 0195e04b1eec8fb00e2db9c5e55655a3f5e76f60` (git)
  - affected: `4427a33faabb4b81511b99dfee18ce0a38b5b5df to before d3fd094c13c6d0b74f246461ca4cf427d539c8e8` (git)
  - affected: `4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 to before 6311b8c471afa33c18adbe4eb16f862936b71ca3` (git)
  - affected: `4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 to before 2a2367d46d7a4ee4122b7a86e57125542dbbe963` (git)
  - affected: `496bc868d9066e034787aa14b8ad6c23e77b51ef` (git)
  - affected: `6.12.101 to before 6.12.110` (semver)
  - affected: `6.18.42 to before 6.18.51` (semver)
  - affected: `7.1.6 to before 7.2` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `7.2`
  - unaffected: `before 7.2` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th 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-2026-89904](https://www.cve.org/CVERecord?id=CVE-2026-89904)
- [NVD: CVE-2026-89904](https://nvd.nist.gov/vuln/detail/CVE-2026-89904)

### References from the CNA

- <https://git.kernel.org/stable/c/0195e04b1eec8fb00e2db9c5e55655a3f5e76f60>
- <https://git.kernel.org/stable/c/d3fd094c13c6d0b74f246461ca4cf427d539c8e8>
- <https://git.kernel.org/stable/c/6311b8c471afa33c18adbe4eb16f862936b71ca3>
- <https://git.kernel.org/stable/c/2a2367d46d7a4ee4122b7a86e57125542dbbe963>

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-2026-89904>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89904/>. Everything for agents: <https://agentprime.io/llms.txt>.