# CVE-2022-3541: Linux Kernel BPF spl2sw_driver.c spl2sw_nvmem_get_mac_address use after free

> A use-after-free vulnerability in the Linux Kernel's Sunplus network driver allows attackers to potentially execute arbitrary code or escalate privileges.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Oct 2022
- **Updated:** 15 Apr 2025
- **Also known as:** AZL-11132, DEBIAN-CVE-2022-3541, GHSA-mhhv-2rpc-5pwq, UBUNTU-CVE-2022-3541

## What is CVE-2022-3541?

CVE-2022-3541 is a medium-severity use after free vulnerability in Linux kernel, published on 17 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability classified as critical has been found in Linux Kernel. This affects the function spl2sw_nvmem_get_mac_address of the file drivers/net/ethernet/sunplus/spl2sw_driver.c of the component BPF. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier VDB-211041 was assigned to this vulnerability.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2022-3541?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2022-3541?

Apply the vendor's patch.

## Is CVE-2022-3541 being exploited?

There is no known exploitation of CVE-2022-3541 in the wild and no public exploit code.

## Other vulnerabilities in Linux kernel

- [CVE-2026-53266](https://insights.sbomify.com/CVE-2026-53266/): Linux Kernel Out-of-Bounds Write (high 8.8, exploited in the wild)
- [CVE-2013-6282](https://insights.sbomify.com/CVE-2013-6282/): Linux Kernel Improper Input Validation (high 8.8, exploited in the wild)
- [CVE-2022-0185](https://insights.sbomify.com/CVE-2022-0185/): Linux Kernel Heap-Based Buffer Overflow (high 8.4, exploited in the wild)
- [CVE-2013-2094](https://insights.sbomify.com/CVE-2013-2094/): Linux Kernel Privilege Escalation (high 8.4, exploited in the wild)
- [CVE-2026-53362](https://insights.sbomify.com/CVE-2026-53362/): Linux Kernel Unspecified (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-3541 and fix it if it is affected.

What it is: CVE-2022-3541 is a medium-severity use after free vulnerability in Linux kernel, published on 17 Oct 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 CVE-2022-3541 in the wild and no public exploit code.

Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.

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/CVE-2022-3541/ (Markdown: https://insights.sbomify.com/CVE-2022-3541/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-3541
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-3541
- OSV: https://osv.dev/vulnerability/CVE-2022-3541

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-3541/
Summaries are generated and may contain mistakes; the official description above is the record.