# CVE-2021-44828: Memory corruption in n/a

> A non-privileged user can exploit a memory corruption flaw in the Arm Mali GPU driver to gain root privileges and modify other processes' memory.

- **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:** 14 Jan 2022
- **Updated:** 4 Aug 2024
- **Also known as:** A-296461583, ASB-A-296461583, GHSA-qcq7-c3jg-v7g4

## What is CVE-2021-44828?

CVE-2021-44828 is a high-severity memory corruption vulnerability in Arm Valhall Gpu Kernel Driver, published on 14 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Arm Mali GPU Kernel Driver (Midgard r26p0 through r30p0, Bifrost r0p0 through r34p0, and Valhall r19p0 through r34p0) allows a non-privileged user to achieve write access to read-only memory, and possibly obtain root privileges, corrupt memory, and modify the memory of other processes.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2021-44828?

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-2021-44828?

Apply the vendor's patch.

## Is CVE-2021-44828 being exploited?

There is no known exploitation of CVE-2021-44828 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-2021-44828 and fix it if it is affected.

What it is: CVE-2021-44828 is a high-severity memory corruption vulnerability in Arm Valhall Gpu Kernel Driver, published on 14 Jan 2022. 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-2021-44828 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-2021-44828/ (Markdown: https://insights.sbomify.com/CVE-2021-44828/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-44828
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-44828
- OSV: https://osv.dev/vulnerability/CVE-2021-44828

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From sbomify Insights: https://insights.sbomify.com/CVE-2021-44828/
Summaries are generated and may contain mistakes; the official description above is the record.