Bug 2426073 (CVE-2023-54228)

Summary: CVE-2023-54228 kernel: regulator: raa215300: Fix resource leak in case of error
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-12-30 13:06:48 UTC 
In the Linux kernel, the following vulnerability has been resolved:

regulator: raa215300: Fix resource leak in case of error

The clk_register_clkdev() allocates memory by calling vclkdev_alloc() and
this memory is not freed in the error path. Similarly, resources allocated
by clk_register_fixed_rate() are not freed in the error path.

Fix these issues by using devm_clk_hw_register_fixed_rate() and
devm_clk_hw_register_clkdev().

After this, the static variable clk is not needed. Replace it with 
local variable hw in probe() and drop calling clk_unregister_fixed_rate()
from raa215300_rtc_unregister_device().
Comment 1 Alexander B 2025-12-31 11:11:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123029-CVE-2023-54228-0585@gregkh/T