# GSD-2022-1000551: mctp: fix use after free

> A use-after-free vulnerability in the Linux kernel MCTP subsystem could allow attackers to execute arbitrary code or cause a denial of service.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Not stated
- **Victim action needed:** Not stated
- **Fix available:** No
- **Published:** 27 Feb 2022

## What is GSD-2022-1000551?

GSD-2022-1000551 is an use after free vulnerability in Kernel, published on 27 Feb 2022. 

### Official description

mctp: fix use after free

This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.
This ID is fixed in Linux Kernel version v5.16.11 by commit 1dd3ecbec5f606b2a526c47925c8634b1a6bb81e, it was introduced in version v5.16 by commit 4f9e1ba6de45aa8797a83f1fe5b82ec4bac16899. For more details please see the references link.

## Which versions are affected by GSD-2022-1000551?

1 open source package ship an affected version, including Kernel.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `Kernel` | Linux | All versions | None |

## How do I fix GSD-2022-1000551?

No fix has been published for GSD-2022-1000551 yet. Limit exposure of the affected software until one is available.

## Is GSD-2022-1000551 being exploited?

There is no known exploitation of GSD-2022-1000551 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GSD-2022-1000551 and fix it if it is affected.

What it is: GSD-2022-1000551 is an use after free vulnerability in Kernel, published on 27 Feb 2022. 
Exploitation: There is no known exploitation of GSD-2022-1000551 in the wild and no public exploit code.

Affected packages and fixed versions:
- Kernel (Linux): affected all versions; no fix listed

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/GSD-2022-1000551/ (Markdown: https://insights.sbomify.com/GSD-2022-1000551/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GSD-2022-1000551

---
From sbomify Insights: https://insights.sbomify.com/GSD-2022-1000551/
Summaries are generated and may contain mistakes; the official description above is the record.