# CVE-2025-37901: irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs

> A missing check in the Qualcomm MPM driver causes a kernel crash when handling non-wake GPIOs, leading to denial of service.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/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:** 20 May 2025
- **Updated:** 5 Aug 2026
- **Also known as:** BELL-CVE-2025-37901, DEBIAN-CVE-2025-37901, GHSA-8hrm-j585-jww6, ROOT-OS-DEBIAN-12-CVE-2025-37901, ROOT-OS-UBUNTU-2404-CVE-2025-37901, UBUNTU-CVE-2025-37901

## What is CVE-2025-37901?

CVE-2025-37901 is a high-severity vulnerability in Debian Debian Linux, published on 20 May 2025. 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:

irqchip/qcom-mpm: Prevent crash when trying to handle non-wake GPIOs

On Qualcomm chipsets not all GPIOs are wakeup capable. Those GPIOs do not
have a corresponding MPM pin and should not be handled inside the MPM
driver. The IRQ domain hierarchy is always applied, so it's required to
explicitly disconnect the hierarchy for those. The pinctrl-msm driver marks
these with GPIO_NO_WAKE_IRQ. qcom-pdc has a check for this, but
irq-qcom-mpm is currently missing the check. This is causing crashes when
setting up interrupts for non-wake GPIOs:

 root@rb1:~# gpiomon -c gpiochip1 10
   irq: IRQ159: trimming hierarchy from :soc@0:interrupt-controller@f200000-1
   Unable to handle kernel paging request at virtual address ffff8000a1dc3820
   Hardware name: Qualcomm Technologies, Inc. Robotics RB1 (DT)
   pc : mpm_set_type+0x80/0xcc
   lr : mpm_set_type+0x5c/0xcc
   Call trace:
    mpm_set_type+0x80/0xcc (P)
    qcom_mpm_set_type+0x64/0x158
    irq_chip_set_type_parent+0x20/0x38
    msm_gpio_irq_set_type+0x50/0x530
    __irq_set_trigger+0x60/0x184
    __setup_irq+0x304/0x6bc
    request_threaded_irq+0xc8/0x19c
    edge_detector_setup+0x260/0x364
    linereq_create+0x420/0x5a8
    gpio_ioctl+0x2d4/0x6c0

Fix this by copying the check for GPIO_NO_WAKE_IRQ from qcom-pdc.c, so that
MPM is removed entirely from the hierarchy for non-wake GPIOs.

## Which versions are affected by CVE-2025-37901?

It affects 2 products.


Products: Debian Debian Linux, Linux kernel.

## How do I fix CVE-2025-37901?

Apply the vendor's patch.

## Is CVE-2025-37901 being exploited?

There is no known exploitation of CVE-2025-37901 in the wild and no public exploit code.

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## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-37901 and fix it if it is affected.

What it is: CVE-2025-37901 is a high-severity vulnerability in Debian Debian Linux, published on 20 May 2025. 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-2025-37901 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-2025-37901/ (Markdown: https://insights.sbomify.com/CVE-2025-37901/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-37901
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-37901
- OSV: https://osv.dev/vulnerability/CVE-2025-37901

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-37901/
Summaries are generated and may contain mistakes; the official description above is the record.