# GSD-2022-1005000: skmsg: Fix wrong last sg check in sk_msg_recvmsg()

> A logic error in the Linux kernel's skmsg receive path can lead to incorrect scatter-gather list handling, potentially causing a denial of service.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Sep 2022

## What is GSD-2022-1005000?

GSD-2022-1005000 is a vulnerability in Kernel, published on 16 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

skmsg: Fix wrong last sg check in sk_msg_recvmsg()

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 v5.19.8 by commit 10ee118a1756141f8e9c87aa7344ed12b41630a8, it was introduced in version v5.19.2 by commit 1295dae30f30c3daa03005ed8958d44b17f037fd. For more details please see the references link.

## Which versions are affected by GSD-2022-1005000?

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-2022-1005000?

No fix has been published for GSD-2022-1005000 yet. Limit exposure of the affected software until one is available.

## Is GSD-2022-1005000 being exploited?

There is no known exploitation of GSD-2022-1005000 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GSD-2022-1005000 and fix it if it is affected.

What it is: GSD-2022-1005000 is a vulnerability in Kernel, published on 16 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of GSD-2022-1005000 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-2022-1005000/ (Markdown: https://insights.sbomify.com/GSD-2022-1005000/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GSD-2022-1005000

---
From sbomify Insights: https://insights.sbomify.com/GSD-2022-1005000/
Summaries are generated and may contain mistakes; the official description above is the record.