CVE-2022-50443 drm/rockchip: lvds: fix PM usage counter unbalance in poweron
A reference leak in the Rockchip LVDS driver can cause a denial of service by exhausting power management resources.
- 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-2022-50443?
CVE-2022-50443 is a medium-severity denial of service vulnerability in Linux kernel, published on 1 Oct 2025. 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:
drm/rockchip: lvds: fix PM usage counter unbalance in poweron
pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. We fix it by replacing it with the newest pm_runtime_resume_and_get to keep usage counter balanced.
Which versions are affected by CVE-2022-50443?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50443?
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-2022-50443 being exploited?
There is no known exploitation of CVE-2022-50443 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50443, GHSA-gw6p-9rm5-8qqm, UBUNTU-CVE-2022-50443.