CVE-2022-50197 cpufreq: zynq: Fix refcount leak in zynq_get_revision
A missing reference count decrement in the Zynq cpufreq driver can lead to a memory leak, potentially causing resource exhaustion and 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-2022-50197?
CVE-2022-50197 is a medium-severity vulnerability in Linux kernel, published on 18 Jun 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:
cpufreq: zynq: Fix refcount leak in zynq_get_revision
of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Which versions are affected by CVE-2022-50197?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50197?
Apply the vendor's patch.
Is CVE-2022-50197 being exploited?
There is no known exploitation of CVE-2022-50197 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50197, GHSA-wf47-g2p3-h7gv, UBUNTU-CVE-2022-50197.