# drm/amdkfd: Add TLB flush after MES queue eviction/suspension

CVE record · `CVE-2026-89811`

- **Identifiers:** `CVE-2026-89811`
- **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:** 30 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: `cc009e613de6560eb499f8bc92c80a737752cb30 to before 750cd793ee69c27faf17fb9c49f92f71716bbc8b` (git)
  - affected: `cc009e613de6560eb499f8bc92c80a737752cb30 to before 5bbd7f283312d0209a0fedcc9d2d33b5afa5a7b1` (git)
  - affected: `cc009e613de6560eb499f8bc92c80a737752cb30 to before bbf5ad5268f36d7ebb7e99ae78fc73cffe98d372` (git)
  - affected: `cc009e613de6560eb499f8bc92c80a737752cb30 to before e230c546ed93741833ab5babb0b202f9c2052b45` (git)
  - affected: `cc009e613de6560eb499f8bc92c80a737752cb30 to before 6aae545c87087e4dc96e205452243813bfa73ba2` (git)
  - affected: `cc009e613de6560eb499f8bc92c80a737752cb30 to before 94e25cb6ab7f4f025bcdcd8ea79fda30f12843a4` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.19`
  - unaffected: `before 5.19` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 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

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> The Linux kernel amdkfd GPU driver is affected from version 5.19 until the fix is applied. A race after MES queue eviction can let in-flight GPU DMA reach unmapped memory, causing page faults and GPU queue hangs, and the source gives few details on attacker access. Upgrade to 6.1.191 or later, 6.6.160 or later, 6.12.114 or later, or 6.18.51 or later on the matching branch.

Written 12 Nov 2026.

## 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:** 0.0018, the 7th 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-2026-89811](https://www.cve.org/CVERecord?id=CVE-2026-89811)
- [NVD: CVE-2026-89811](https://nvd.nist.gov/vuln/detail/CVE-2026-89811)

### References from the CNA

- <https://git.kernel.org/stable/c/750cd793ee69c27faf17fb9c49f92f71716bbc8b>
- <https://git.kernel.org/stable/c/5bbd7f283312d0209a0fedcc9d2d33b5afa5a7b1>
- <https://git.kernel.org/stable/c/bbf5ad5268f36d7ebb7e99ae78fc73cffe98d372>
- <https://git.kernel.org/stable/c/e230c546ed93741833ab5babb0b202f9c2052b45>
- <https://git.kernel.org/stable/c/6aae545c87087e4dc96e205452243813bfa73ba2>
- <https://git.kernel.org/stable/c/94e25cb6ab7f4f025bcdcd8ea79fda30f12843a4>

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-2026-89811>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89811/>. Everything for agents: <https://agentprime.io/llms.txt>.