CVE-2022-50207 ARM: bcm: Fix refcount leak in bcm_kona_smc_init
A missing reference count decrement in the Linux kernel ARM BCM driver can lead to a memory leak, potentially causing resource exhaustion.
- 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-2022-50207?
CVE-2022-50207 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:
ARM: bcm: Fix refcount leak in bcm_kona_smc_init
of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Which versions are affected by CVE-2022-50207?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50207?
Apply the vendor's patch.
Is CVE-2022-50207 being exploited?
There is no known exploitation of CVE-2022-50207 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50207, GHSA-j646-372m-5mj2, UBUNTU-CVE-2022-50207.