CVE-2023-54228 regulator: raa215300: Fix resource leak in case of error
A resource leak in the Linux kernel regulator driver allows attackers to cause a denial of service by triggering error paths that fail to free memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54228?
CVE-2023-54228 is a denial of service vulnerability in Linux, published on 30 Dec 2025.
Official description
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().
Which versions are affected by CVE-2023-54228?
How do I fix CVE-2023-54228?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-54228 being exploited?
There is no known exploitation of CVE-2023-54228 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54228, DEBIAN-CVE-2023-54228, GHSA-q47m-cv74-3xj8, UBUNTU-CVE-2023-54228.