# net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery

CVE record · `CVE-2026-43466`

- **Identifiers:** `CVE-2026-43466`
- **State:** Confirmed
- **Severity:** CVSS 8.2 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-662](https://cwe.mitre.org/data/definitions/662.html)
- **Tags:** [CWE-662](https://agentprime.io/advisories/tag/cwe-662.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 8 May 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 8 May 2026, 14:22 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: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 821f85d619f7f22cda7b9d7de89cf5eeb1d11544` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 6eb68ecc5acc3b319986566c595990b8a7265b23` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 6f41f7812bfa7f991b732a4b45c5c52fc4be3b4e` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 383b37c04a4827ba60b2bafc1a6cdfd995aed58f` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 9c5ee9b981ee050b73fdf3f4a2464d6f1a8e10a8` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before ce1b19dd0684eeb68a124c11085bd611260b36d9` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 829efcccfa8f69db5dc8332961295587d218cee6` (git)
  - affected: `db75373c91b0cfb6a68ad6ae88721e4e21ae6261 to before 1633111d69053512d099658d4a05fc736fab36b0` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.17`
  - unaffected: `before 4.17` (semver)
  - unaffected: `5.10.253 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.203 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.167 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.130 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.78 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.19 to 6.18.*, inclusive` (semver)
  - unaffected: `6.19.9 to 6.19.*, inclusive` (semver)
  - unaffected: `7.0 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0041, the 35th percentile, on 6 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 8 May 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-43466](https://www.cve.org/CVERecord?id=CVE-2026-43466)
- [NVD: CVE-2026-43466](https://nvd.nist.gov/vuln/detail/CVE-2026-43466)

### References from the CNA

- <https://git.kernel.org/stable/c/821f85d619f7f22cda7b9d7de89cf5eeb1d11544>
- <https://git.kernel.org/stable/c/6eb68ecc5acc3b319986566c595990b8a7265b23>
- <https://git.kernel.org/stable/c/6f41f7812bfa7f991b732a4b45c5c52fc4be3b4e>
- <https://git.kernel.org/stable/c/383b37c04a4827ba60b2bafc1a6cdfd995aed58f>
- <https://git.kernel.org/stable/c/9c5ee9b981ee050b73fdf3f4a2464d6f1a8e10a8>
- <https://git.kernel.org/stable/c/ce1b19dd0684eeb68a124c11085bd611260b36d9>
- <https://git.kernel.org/stable/c/829efcccfa8f69db5dc8332961295587d218cee6>
- <https://git.kernel.org/stable/c/1633111d69053512d099658d4a05fc736fab36b0>

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-2026-43466>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-43466/>. Everything for agents: <https://agentprime.io/llms.txt>.