CVE-2026-98661 iio: light: rohm-bu27034: Fix infinite delay on error
A local attacker can cause a denial of service in the Linux kernel by triggering an error in the ROHM BU27034 light sensor driver, leading to an infinite delay.
- 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-2026-98661?
CVE-2026-98661 is a denial of service vulnerability in Linux, published on 18 Oct 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: rohm-bu27034: Fix infinite delay on error
When reading an integration-time fails, the code will use error code to compute the sleep time.
Fix this by using the smallest integration time as a default if reading fails.
Which versions are affected by CVE-2026-98661?
How do I fix CVE-2026-98661?
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-2026-98661 being exploited?
There is no known exploitation of CVE-2026-98661 in the wild and no public exploit code.
Sources
Also known as AZL-108828, BELL-CVE-2026-98661, DEBIAN-CVE-2026-98661, GHSA-7jrf-7w2g-hp8v, UBUNTU-CVE-2026-98661.