# crypto: qat - remove unused character device and IOCTLs

CVE record · `CVE-2026-64529`

- **Identifiers:** `CVE-2026-64529`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Weakness (CWE):** [CWE-489](https://cwe.mitre.org/data/definitions/489.html)
- **Tags:** [CWE-489](https://agentprime.io/advisories/tag/cwe-489.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Jul 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Jul 2026, 09:24 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: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before 071590a44cbc38483fceb1ab943363ec26868e1b` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before 1de076f43e64bf65fbe7280a269c70e0e60518df` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before 6848a6e39cac44fdb7cb88f0f777df62172d1551` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before b1ea97076bd0a5196290deba172034e480646727` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before b8ebf008696de1ec08c90d51f94d7e40bd448be1` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before de2cc38489b629927910b1aeff69bba7bd5c6f1b` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before 3ae49dd04dbb11fb73f17f58a982dba128abe83a` (git)
  - affected: `d8cba25d2c68992a6e7c1d329b690a9ebe01167d to before d237230728c567297f2f98b425d63156ab2ed17f` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.17`
  - unaffected: `before 3.17` (semver)
  - unaffected: `5.10.260 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.211 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.177 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.144 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.95 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.37 to 6.18.*, inclusive` (semver)
  - unaffected: `7.0.14 to 7.0.*, inclusive` (semver)
  - unaffected: `7.1.2 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2 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:** 0.0018, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 25 Jul 2026, 10:17 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-64529)

## Sources

- [CVE List: CVE-2026-64529](https://www.cve.org/CVERecord?id=CVE-2026-64529)
- [NVD: CVE-2026-64529](https://nvd.nist.gov/vuln/detail/CVE-2026-64529)

### References from the CNA

- <https://git.kernel.org/stable/c/071590a44cbc38483fceb1ab943363ec26868e1b>
- <https://git.kernel.org/stable/c/1de076f43e64bf65fbe7280a269c70e0e60518df>
- <https://git.kernel.org/stable/c/a4999664a5ef77bdb0c6e6b935f581ac8ce6b63a>
- <https://git.kernel.org/stable/c/6848a6e39cac44fdb7cb88f0f777df62172d1551>
- <https://git.kernel.org/stable/c/b1ea97076bd0a5196290deba172034e480646727>
- <https://git.kernel.org/stable/c/b8ebf008696de1ec08c90d51f94d7e40bd448be1>
- <https://git.kernel.org/stable/c/de2cc38489b629927910b1aeff69bba7bd5c6f1b>
- <https://git.kernel.org/stable/c/3ae49dd04dbb11fb73f17f58a982dba128abe83a>
- <https://git.kernel.org/stable/c/d237230728c567297f2f98b425d63156ab2ed17f>

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-2026-64529>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-64529/>. Everything for agents: <https://agentprime.io/llms.txt>.