# GSD-2023-1001436: mmc: via-sdmmc: fix return value check of mmc_add_host()

> A missing return value check in the via-sdmmc driver could lead to undefined behavior, requiring a kernel patch for mitigation.

- **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:** 17 Jan 2023

## What is GSD-2023-1001436?

GSD-2023-1001436 is a vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

mmc: via-sdmmc: fix return value check of mmc_add_host()

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 v5.10.163 by commit 63400da6cd37a9793c19bb6aed7131b58b975a04, it was introduced in version v2.6.31 by commit f0bf7f61b8405224bc52fc9a3ccd167a68126e00. For more details please see the references link.

## Which versions are affected by GSD-2023-1001436?

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-2023-1001436?

No fix has been published for GSD-2023-1001436 yet. Limit exposure of the affected software until one is available.

## Is GSD-2023-1001436 being exploited?

There is no known exploitation of GSD-2023-1001436 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GSD-2023-1001436 and fix it if it is affected.

What it is: GSD-2023-1001436 is a vulnerability in Kernel, published on 17 Jan 2023. 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-2023-1001436 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-2023-1001436/ (Markdown: https://insights.sbomify.com/GSD-2023-1001436/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GSD-2023-1001436

---
From sbomify Insights: https://insights.sbomify.com/GSD-2023-1001436/
Summaries are generated and may contain mistakes; the official description above is the record.