# CVE-2022-26357: Race condition in xen

> A race condition in Xen's VT-d domain ID cleanup allows attackers to leak domain IDs and bypass IOMMU flushes, potentially compromising isolation.

- **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:** 5 Apr 2022
- **Updated:** 3 Aug 2024
- **Also known as:** ALPINE-CVE-2022-26357, DEBIAN-CVE-2022-26357, GHSA-p235-73wr-c3m7, UBUNTU-CVE-2022-26357

## What is CVE-2022-26357?

CVE-2022-26357 is a high-severity vulnerability in Debian Debian Linux, published on 5 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

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

## Which versions are affected by CVE-2022-26357?

It affects 3 products.


Products: Debian Debian Linux, Fedoraproject Fedora, Xen Xen.

## How do I fix CVE-2022-26357?

Apply the vendor's patch.

## Is CVE-2022-26357 being exploited?

There is no known exploitation of CVE-2022-26357 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

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- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26357 and fix it if it is affected.

What it is: CVE-2022-26357 is a high-severity vulnerability in Debian Debian Linux, published on 5 Apr 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-2022-26357 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2022-26357/ (Markdown: https://insights.sbomify.com/CVE-2022-26357/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26357
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26357
- OSV: https://osv.dev/vulnerability/CVE-2022-26357

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26357/
Summaries are generated and may contain mistakes; the official description above is the record.