# CVE-2022-28348: Use after free in n/a

> Attackers can exploit improper GPU memory operations in Arm Mali drivers to achieve code execution or privilege escalation via use-after-free.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 May 2022
- **Updated:** 3 Aug 2024
- **Also known as:** A-296463357, ASB-A-296463357, GHSA-r85c-7543-8wq6

## What is CVE-2022-28348?

CVE-2022-28348 is a critical use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 19 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Arm Mali GPU Kernel Driver (Midgard r4p0 through r31p0, Bifrost r0p0 through r36p0 before r37p0, and Valhall r19p0 through r36p0 before r37p0) allows improper GPU memory operations to reach a use-after-free situation.

Weakness: CWE-416 (Use After Free)

## Which versions are affected by CVE-2022-28348?

It affects 3 products.


Products: Arm Bifrost Gpu Kernel Driver, Arm Midgard Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.

## How do I fix CVE-2022-28348?

Apply the vendor's patch.

## Is CVE-2022-28348 being exploited?

There is no known exploitation of CVE-2022-28348 in the wild and no public exploit code.

## Other vulnerabilities in Arm Valhall Gpu Kernel Driver

- [CVE-2022-38181](https://insights.sbomify.com/CVE-2022-38181/): Arm Mali GPU Kernel Driver Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2021-29256](https://insights.sbomify.com/CVE-2021-29256/): Arm Mali GPU Kernel Driver Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2021-28663](https://insights.sbomify.com/CVE-2021-28663/): Arm Mali Graphics Processing Unit (GPU) Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2021-28664](https://insights.sbomify.com/CVE-2021-28664/): Arm Mali Graphics Processing Unit (GPU) Unspecified (high 8.8, exploited in the wild)
- [CVE-2022-22706](https://insights.sbomify.com/CVE-2022-22706/): Arm Mali GPU Kernel Driver Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-28348 and fix it if it is affected.

What it is: CVE-2022-28348 is a critical use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 19 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-28348 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-2022-28348/ (Markdown: https://insights.sbomify.com/CVE-2022-28348/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-28348
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-28348
- OSV: https://osv.dev/vulnerability/CVE-2022-28348

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-28348/
Summaries are generated and may contain mistakes; the official description above is the record.