# CVE-2023-3889: Mali GPU Kernel Driver exposes sensitive data from freed memory

> A local attacker can exploit improper GPU memory operations to access freed memory, potentially exposing sensitive data on Android devices.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 7 Nov 2023
- **Updated:** 16 Dec 2025
- **Also known as:** A-295942985, ASB-A-295942985, GHSA-4qp7-687g-h58j

## What is CVE-2023-3889?

CVE-2023-3889 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 7 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A local non-privileged user can make improper GPU memory processing operations. If the operations are carefully prepared, then they could be used to gain access to already freed memory.

Weakness: CWE-667 (Improper Locking), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2023-3889?

It affects 1 product.


Products: Arm Valhall Gpu Kernel Driver.

## How do I fix CVE-2023-3889?

Apply the vendor's patch.

## Is CVE-2023-3889 being exploited?

There is no known exploitation of CVE-2023-3889 in the wild and no public exploit code.

## Other vulnerabilities in Arm Valhall Gpu Kernel Driver

- [CVE-2022-28350](https://insights.sbomify.com/CVE-2022-28350/): Use after free in n/a (critical 9.8)
- [CVE-2022-42716](https://insights.sbomify.com/CVE-2022-42716/): Use after free in n/a (high 8.8)
- [CVE-2022-41757](https://insights.sbomify.com/CVE-2022-41757/): Use after free in n/a (high 8.8)
- [CVE-2023-5091](https://insights.sbomify.com/CVE-2023-5091/): Mali GPU Kernel Driver allows improper GPU processing operations (high 7.0)
- [CVE-2022-33917](https://insights.sbomify.com/CVE-2022-33917/): Use after free in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-3889 and fix it if it is affected.

What it is: CVE-2023-3889 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 7 Nov 2023. 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-2023-3889 in the wild and no public exploit code.

Affected product: Arm Valhall Gpu Kernel Driver. 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-2023-3889/ (Markdown: https://insights.sbomify.com/CVE-2023-3889/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-3889
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-3889
- OSV: https://osv.dev/vulnerability/CVE-2023-3889

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-3889/
Summaries are generated and may contain mistakes; the official description above is the record.