# CVE-2026-97621: drm/rockchip: analogix_dp: fix unchecked bound endpoint name length

> A stack buffer overflow in the Rockchip DisplayPort driver allows local attackers to execute arbitrary code or crash the system via long device tree paths.

- **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:** 25 Sep 2026
- **Updated:** 19 Oct 2026
- **Also known as:** BELL-CVE-2026-97621, DEBIAN-CVE-2026-97621, GHSA-q6xv-ghr2-54fw, UBUNTU-CVE-2026-97621

## What is CVE-2026-97621?

CVE-2026-97621 is a memory corruption vulnerability in Linux, published on 25 Sep 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:

drm/rockchip: analogix_dp: fix unchecked bound endpoint name length

rockchip_dp_drm_encoder_enable() uses sprintf() to format a device tree
path into a 32-byte stack buffer. Device tree paths are not limited to
this size, so a sufficiently long path can overflow the buffer.

Use snprintf() with the destination size to truncate the generated name
and keep the writes within bounds.

## Which versions are affected by CVE-2026-97621?


## How do I fix CVE-2026-97621?

Apply the vendor's patch.

## Is CVE-2026-97621 being exploited?

There is no known exploitation of CVE-2026-97621 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-97621 and fix it if it is affected.

What it is: CVE-2026-97621 is a memory corruption vulnerability in Linux, published on 25 Sep 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-2026-97621 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-2026-97621/ (Markdown: https://insights.sbomify.com/CVE-2026-97621/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-97621
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-97621
- OSV: https://osv.dev/vulnerability/CVE-2026-97621

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-97621/
Summaries are generated and may contain mistakes; the official description above is the record.