CVE-2026-43355 iio: light: bh1780: fix PM runtime leak on error path
A resource leak in the BH1780 light sensor driver can lead to denial of service by exhausting power management references.
- 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-2026-43355?
CVE-2026-43355 is a medium-severity denial of service vulnerability in Linux kernel, published on 8 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:
iio: light: bh1780: fix PM runtime leak on error path
Move pm_runtime_put_autosuspend() before the error check to ensure the PM runtime reference count is always decremented after pm_runtime_get_sync(), regardless of whether the read operation succeeds or fails.
Weakness: CWE-401
Which versions are affected by CVE-2026-43355?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43355?
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-2026-43355 being exploited?
There is no known exploitation of CVE-2026-43355 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43355, DEBIAN-CVE-2026-43355, GHSA-fg9p-q72c-pr97, ROOT-OS-DEBIAN-11-CVE-2026-43355, ROOT-OS-DEBIAN-13-CVE-2026-43355, ROOT-OS-UBUNTU-2204-CVE-2026-43355 and 2 more.