# CVE-2025-71193: phy: qcom-qusb2: Fix NULL pointer dereference on early suspend

> A race condition in the Qualcomm QUSB2 PHY driver causes a kernel crash during boot, leading to denial of service.

- **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:** Yes
- **Published:** 4 Feb 2026
- **Updated:** 11 May 2026
- **Also known as:** BELL-CVE-2025-71193, DEBIAN-CVE-2025-71193, GHSA-wqf4-5q2q-7334, ROOT-OS-DEBIAN-11-CVE-2025-71193, ROOT-OS-DEBIAN-12-CVE-2025-71193, ROOT-OS-UBUNTU-2204-CVE-2025-71193, ROOT-OS-UBUNTU-2404-CVE-2025-71193, UBUNTU-CVE-2025-71193

## What is CVE-2025-71193?

CVE-2025-71193 is a vulnerability in Linux, published on 4 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

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

phy: qcom-qusb2: Fix NULL pointer dereference on early suspend

Enabling runtime PM before attaching the QPHY instance as driver data
can lead to a NULL pointer dereference in runtime PM callbacks that
expect valid driver data. There is a small window where the suspend
callback may run after PM runtime enabling and before runtime forbid.
This causes a sporadic crash during boot:

```
Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a1
[...]
CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.7+ #116 PREEMPT
Workqueue: pm pm_runtime_work
pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : qusb2_phy_runtime_suspend+0x14/0x1e0 [phy_qcom_qusb2]
lr : pm_generic_runtime_suspend+0x2c/0x44
[...]
```

Attach the QPHY instance as driver data before enabling runtime PM to
prevent NULL pointer dereference in runtime PM callbacks.

Reorder pm_runtime_enable() and pm_runtime_forbid() to prevent a
short window where an unnecessary runtime suspend can occur.

Use the devres-managed version to ensure PM runtime is symmetrically
disabled during driver removal for proper cleanup.

## Which versions are affected by CVE-2025-71193?


## How do I fix CVE-2025-71193?

Apply the vendor's patch.

## Is CVE-2025-71193 being exploited?

There is no known exploitation of CVE-2025-71193 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-71193 and fix it if it is affected.

What it is: CVE-2025-71193 is a vulnerability in Linux, published on 4 Feb 2026. 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-2025-71193 in the wild and no public exploit code.

Affected product: 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-2025-71193/ (Markdown: https://insights.sbomify.com/CVE-2025-71193/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-71193
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-71193
- OSV: https://osv.dev/vulnerability/CVE-2025-71193

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-71193/
Summaries are generated and may contain mistakes; the official description above is the record.