# CVE-2022-41757: Use after free in n/a

> A non-privileged user can exploit a use-after-free in the Arm Mali GPU driver to write to read-only memory or access freed memory, potentially leading to privilege escalation.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Nov 2022
- **Updated:** 1 May 2025
- **Also known as:** A-254445909, ASB-A-254445909, GHSA-pggw-w357-q8q8

## What is CVE-2022-41757?

CVE-2022-41757 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 8 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to obtain write access to read-only memory, or obtain access to already freed memory. This affects Valhall r29p0 through r38p1 before r38p2, and r39p0 before r40p0.

Weakness: CWE-123 (Write-what-where Condition)

## Which versions are affected by CVE-2022-41757?

It affects 1 product.


Products: Arm Valhall Gpu Kernel Driver.

## How do I fix CVE-2022-41757?

Apply the vendor's patch.

## Is CVE-2022-41757 being exploited?

There is no known exploitation of CVE-2022-41757 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-2023-3889](https://insights.sbomify.com/CVE-2023-3889/): Mali GPU Kernel Driver exposes sensitive data from freed memory (high 7.8)
- [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-2022-41757 and fix it if it is affected.

What it is: CVE-2022-41757 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 8 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-41757 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-2022-41757/ (Markdown: https://insights.sbomify.com/CVE-2022-41757/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-41757
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-41757
- OSV: https://osv.dev/vulnerability/CVE-2022-41757

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-41757/
Summaries are generated and may contain mistakes; the official description above is the record.