# GSD-2022-1006842: eth: sp7021: fix use after free bug in spl2sw_nvmem_get_mac_address

> A use-after-free bug in the sp7021 Ethernet driver allows local attackers to potentially execute code or crash the system.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Nov 2022

## What is GSD-2022-1006842?

GSD-2022-1006842 is an use after free vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

eth: sp7021: fix use after free bug in spl2sw_nvmem_get_mac_address

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 v6.0.3 by commit 99e229c7fe30a1661f9f306b3df06eaf1db064aa, it was introduced in version v5.19 by commit fd3040b9394c58bcedb83554bcf1a073021d6b36. For more details please see the references link.

## Which versions are affected by GSD-2022-1006842?

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-2022-1006842?

No fix has been published for GSD-2022-1006842 yet. Limit exposure of the affected software until one is available.

## Is GSD-2022-1006842 being exploited?

There is no known exploitation of GSD-2022-1006842 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GSD-2022-1006842 and fix it if it is affected.

What it is: GSD-2022-1006842 is an use after free vulnerability in Kernel, published on 14 Nov 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 GSD-2022-1006842 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-2022-1006842/ (Markdown: https://insights.sbomify.com/GSD-2022-1006842/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GSD-2022-1006842

---
From sbomify Insights: https://insights.sbomify.com/GSD-2022-1006842/
Summaries are generated and may contain mistakes; the official description above is the record.