Bug 2401515 (CVE-2023-53573) - CVE-2023-53573 kernel: clk: rs9: Fix suspend/resume
Summary: CVE-2023-53573 kernel: clk: rs9: Fix suspend/resume
Keywords:
Status: NEW
Alias: CVE-2023-53573
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-04 16:05 UTC by OSIDB Bzimport
Modified: 2025-11-26 12:07 UTC (History)
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Description OSIDB Bzimport 2025-10-04 16:05:00 UTC 
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.
Comment 1 Alexander B 2025-10-06 14:28:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100453-CVE-2023-53573-a05d@gregkh/T
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