# CVE-2026-45202: GPU DDK - Silent High-Order CMA Memory Leak & Double Free in `_FreeOSPages_Fast`

> A non-privileged user can trigger a double free in the GPU driver, potentially leading to kernel heap corruption and privilege escalation.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** A-524220121, ASB-A-524220121, GHSA-r4gp-788h-8rfj

## What is CVE-2026-45202?

CVE-2026-45202 is a medium-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 21 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Software installed and run as a non-privileged user may conduct GPU system calls which cause GPU memory leaks and possible kernel heap corruption.

Scenario caused by memory free paths not maintaining state data of upgraded higher order allocations. This could cause memory leak or double free event.

Weakness: CWE-415 (Double Free)

## Which versions are affected by CVE-2026-45202?


## How do I fix CVE-2026-45202?

Apply the vendor's patch.

## Is CVE-2026-45202 being exploited?

There is no known exploitation of CVE-2026-45202 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-45202 and fix it if it is affected.

What it is: CVE-2026-45202 is a medium-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 21 Aug 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-2026-45202 in the wild and no public exploit code.

Affected product: Imagination Technologies Graphics DDK. 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-2026-45202/ (Markdown: https://insights.sbomify.com/CVE-2026-45202/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-45202
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-45202
- OSV: https://osv.dev/vulnerability/CVE-2026-45202

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-45202/
Summaries are generated and may contain mistakes; the official description above is the record.