What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-04 · updated 2026-06-17

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.

Affected products

• Linux kernel: from 6.0.8 before 6.1; from 6.1.1 before 6.1.25; from 6.2 before 6.2.12; 6.1, 6.1-rc4, 6.1-rc5, 6.1-rc6, 6.1-rc7, 6.1-rc8 (+6) — fixed in 6.1, 6.1.25, 6.2.12

How to fix

Upgrade to a fixed version: Linux kernel 6.1, 6.1.25, 6.2.12. Check the vendor advisory for mitigations.

References

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

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