# CVE-2025-38287: IB/cm: Drop lockdep assert and WARN when freeing old msg

> A logic error in the Linux kernel InfiniBand connection manager triggers warnings and potential crashes when freeing messages, leading to denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Jul 2025
- **Updated:** 5 Aug 2026
- **Also known as:** BELL-CVE-2025-38287, GHSA-759j-pggr-8g4v, UBUNTU-CVE-2025-38287

## What is CVE-2025-38287?

CVE-2025-38287 is a high-severity denial of service vulnerability in Linux kernel, published on 10 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

IB/cm: Drop lockdep assert and WARN when freeing old msg

The send completion handler can run after cm_id has advanced to another
message.  The cm_id lock is not needed in this case, but a recent change
re-used cm_free_priv_msg(), which asserts that the lock is held and
WARNs if the cm_id's currently outstanding msg is different than the one
being freed.

## Which versions are affected by CVE-2025-38287?

It affects 1 product.


Products: Linux kernel.

## How do I fix CVE-2025-38287?

Apply the vendor's patch.

## Is CVE-2025-38287 being exploited?

There is no known exploitation of CVE-2025-38287 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-2025-38287 and fix it if it is affected.

What it is: CVE-2025-38287 is a high-severity denial of service vulnerability in Linux kernel, published on 10 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-38287 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-2025-38287/ (Markdown: https://insights.sbomify.com/CVE-2025-38287/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-38287
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-38287
- OSV: https://osv.dev/vulnerability/CVE-2025-38287

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-38287/
Summaries are generated and may contain mistakes; the official description above is the record.