CVE-2026-45875 mfd: arizona: Fix regulator resource leak on wm5102_clear_write_sequencer() failure
A resource leak in the Arizona MFD driver can cause regulators to remain enabled, potentially leading to system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-45875?
CVE-2026-45875 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
mfd: arizona: Fix regulator resource leak on wm5102_clear_write_sequencer() failure
The wm5102_clear_write_sequencer() helper may return an error and just return, bypassing the cleanup sequence and causing regulators to remain enabled, leading to a resource leak.
Change the direct return to jump to the err_reset label to properly free the resources.
Weakness: CWE-401
Which versions are affected by CVE-2026-45875?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-45875?
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-2026-45875 being exploited?
There is no known exploitation of CVE-2026-45875 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-45875, DEBIAN-CVE-2026-45875, GHSA-jvj6-qwx6-7f2x, ROOT-OS-DEBIAN-11-CVE-2026-45875, ROOT-OS-UBUNTU-2204-CVE-2026-45875, ROOT-OS-UBUNTU-2404-CVE-2026-45875 and 1 more.