CVE-2026-89935 iio: light: apds9306: fix PM reference leak in apds9306_read_data()
A reference leak in the APDS9306 light sensor driver prevents device autosuspend, potentially causing resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-89935?
CVE-2026-89935 is a denial of service vulnerability in Linux, published on 16 Sep 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:
iio: light: apds9306: fix PM reference leak in apds9306_read_data()
apds9306_read_data() calls pm_runtime_resume_and_get() but several error paths return directly without calling pm_runtime_put_autosuspend(), leaking the runtime PM reference and preventing the device from autosuspending.
Use PM_RUNTIME_ACQUIRE_AUTOSUSPEND() and PM_RUNTIME_ACQUIRE_ERR() to automatically handle runtime PM reference release on all return paths.
Which versions are affected by CVE-2026-89935?
How do I fix CVE-2026-89935?
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-2026-89935 being exploited?
There is no known exploitation of CVE-2026-89935 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-89935, DEBIAN-CVE-2026-89935, GHSA-hc82-2r97-wgw7, UBUNTU-CVE-2026-89935.