# CVE-2023-2006: Race condition in Linux kernel's RxRPC network protocol

> A race condition in the Linux kernel's RxRPC protocol allows attackers to escalate privileges and execute arbitrary code in kernel context.

- **Severity:** High 7.0 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 24 Apr 2023
- **Updated:** 23 Apr 2025
- **Also known as:** AZL-26376, DEBIAN-CVE-2023-2006, GHSA-pvxc-v7pp-fmx4, UBUNTU-CVE-2023-2006

## What is CVE-2023-2006?

CVE-2023-2006 is a high-severity vulnerability in Linux kernel, published on 24 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A race condition was found in the Linux kernel's RxRPC network protocol, within the processing of RxRPC bundles. This issue results from the lack of proper locking when performing operations on an object. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.

Weakness: CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization)

## Which versions are affected by CVE-2023-2006?

It affects 2 products.


Products: Linux kernel, Netapp Hci Baseboard Management Controller.

## How do I fix CVE-2023-2006?

Apply the vendor's patch.

## Is CVE-2023-2006 being exploited?

There is no known exploitation of CVE-2023-2006 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-2023-2006 and fix it if it is affected.

What it is: CVE-2023-2006 is a high-severity vulnerability in Linux kernel, published on 24 Apr 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 CVE-2023-2006 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-2023-2006/ (Markdown: https://insights.sbomify.com/CVE-2023-2006/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-2006
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-2006
- OSV: https://osv.dev/vulnerability/CVE-2023-2006

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-2006/
Summaries are generated and may contain mistakes; the official description above is the record.