# CVE-2024-46971: GPU DDK - UAF of memory in PMRUnlockSysPhysAddressesLocalMem for on-demand PMRs on PCI (LMA) systems

> A non-privileged user can exploit a use-after-free vulnerability in the GPU driver to read and write freed physical memory, potentially leading to code execution or privilege escalation.

- **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:** No
- **Published:** 13 Dec 2024
- **Updated:** 16 Dec 2024
- **Also known as:** GHSA-3gr3-rr4m-976p

## What is CVE-2024-46971?

CVE-2024-46971 is a high-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 13 Dec 2024. 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 to read and write freed physical memory from the GPU.

Weakness: CWE-416 (Use After Free), CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2024-46971?


## How do I fix CVE-2024-46971?

No fix has been published for CVE-2024-46971 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-46971 being exploited?

There is no known exploitation of CVE-2024-46971 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-46971 and fix it if it is affected.

What it is: CVE-2024-46971 is a high-severity use after free vulnerability in Imagination Technologies Graphics DDK, published on 13 Dec 2024. 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-2024-46971 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-2024-46971/ (Markdown: https://insights.sbomify.com/CVE-2024-46971/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-46971
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-46971
- OSV: https://osv.dev/vulnerability/CVE-2024-46971

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From sbomify Insights: https://insights.sbomify.com/CVE-2024-46971/
Summaries are generated and may contain mistakes; the official description above is the record.