CVE-2022-50104 powerpc/xive: Fix refcount leak in xive_get_max_prio
A missing reference count decrement in the Linux kernel powerpc xive driver can lead to a memory leak and potential 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-2022-50104?
CVE-2022-50104 is a medium-severity memory corruption 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:
powerpc/xive: Fix refcount leak in xive_get_max_prio
of_find_node_by_path() 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-2022-50104?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50104?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-50104 being exploited?
There is no known exploitation of CVE-2022-50104 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50104, GHSA-pwvv-j2c7-5hh6, UBUNTU-CVE-2022-50104.