# drm/amdgpu: clamp the isolation index for rings outside a partition

CVE record · `CVE-2026-89814`

- **Identifiers:** `CVE-2026-89814`
- **State:** Confirmed
- **Severity:** CVSS 7.8 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, 10:30 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: `bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 to before 964de255497ffd7cb8a86e405b8ac6d927e7e177` (git)
  - affected: `bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 to before 0bfb938182d1313e5cac32ae38dbaaa4eabe4af4` (git)
  - affected: `bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 to before b30900566642ceb2c9e12b56c2afec28d0fd91a0` (git)
  - affected: `4277dc1942a8979abe1ef2b55069f42497f885c0` (git)
  - affected: `6.14.9 to before 6.15` (semver)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.15`
  - unaffected: `before 6.15` (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

- 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:** 0.0017, the 6th 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-2026-89814](https://www.cve.org/CVERecord?id=CVE-2026-89814)
- [NVD: CVE-2026-89814](https://nvd.nist.gov/vuln/detail/CVE-2026-89814)

### References from the CNA

- <https://git.kernel.org/stable/c/964de255497ffd7cb8a86e405b8ac6d927e7e177>
- <https://git.kernel.org/stable/c/0bfb938182d1313e5cac32ae38dbaaa4eabe4af4>
- <https://git.kernel.org/stable/c/b30900566642ceb2c9e12b56c2afec28d0fd91a0>

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-2026-89814>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89814/>. Everything for agents: <https://agentprime.io/llms.txt>.