# CVE-2026-98328: wifi: mac80211: add HE 6 GHz capability in the scan elems len

> A missing length calculation for HE 6 GHz capabilities in Linux kernel Wi-Fi scanning can cause a kernel warning and potential denial of service.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Oct 2026
- **Updated:** 19 Oct 2026
- **Also known as:** AZL-106434, BELL-CVE-2026-98328, DEBIAN-CVE-2026-98328, GHSA-hvjp-xxq4-q29j, UBUNTU-CVE-2026-98328

## What is CVE-2026-98328?

CVE-2026-98328 is a denial of service vulnerability in Linux, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: add HE 6 GHz capability in the scan elems len

The HE 6 GHz Band Capability element is in the probe request for
every band if 6 GHz is supported, so add the size to scan_ies_len.

Otherwise, building probe request elements can fail, triggering the
WARN_ON in __ieee80211_start_scan().

## Which versions are affected by CVE-2026-98328?


## How do I fix CVE-2026-98328?

Apply the vendor's patch.

## Is CVE-2026-98328 being exploited?

There is no known exploitation of CVE-2026-98328 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-98328 and fix it if it is affected.

What it is: CVE-2026-98328 is a denial of service vulnerability in Linux, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-98328 in the wild and no public exploit code.

Affected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-98328/ (Markdown: https://insights.sbomify.com/CVE-2026-98328/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-98328
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-98328
- OSV: https://osv.dev/vulnerability/CVE-2026-98328

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-98328/
Summaries are generated and may contain mistakes; the official description above is the record.