# GSD-2022-1002138: jffs2: fix use-after-free in jffs2_clear_xattr_subsystem

> A use-after-free vulnerability in the JFFS2 filesystem allows local attackers to potentially execute code or escalate privileges.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Local or same network only
- **Victim action needed:** Not stated
- **Fix available:** No
- **Published:** 24 Apr 2022

## What is GSD-2022-1002138?

GSD-2022-1002138 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network.

### Official description

jffs2: fix use-after-free in jffs2_clear_xattr_subsystem

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 v5.10.110 by commit 7bb7428dd73991bf4b3a7a61b493ca50046c2b13, it was introduced in version v2.6.18 by commit aa98d7cf59b5b0764d3502662053489585faf2fe. For more details please see the references link.

## Which versions are affected by GSD-2022-1002138?

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-2022-1002138?

No fix has been published for GSD-2022-1002138 yet. Limit exposure of the affected software until one is available.

## Is GSD-2022-1002138 being exploited?

There is no known exploitation of GSD-2022-1002138 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GSD-2022-1002138 and fix it if it is affected.

What it is: GSD-2022-1002138 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network.
Exploitation: There is no known exploitation of GSD-2022-1002138 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-2022-1002138/ (Markdown: https://insights.sbomify.com/GSD-2022-1002138/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GSD-2022-1002138

---
From sbomify Insights: https://insights.sbomify.com/GSD-2022-1002138/
Summaries are generated and may contain mistakes; the official description above is the record.