CVE-2022-50158 mtd: partitions: Fix refcount leak in parse_redboot_of
A refcount leak in the Linux kernel MTD partition parser can lead to 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-2022-50158?
CVE-2022-50158 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:
mtd: partitions: Fix refcount leak in parse_redboot_of
of_get_child_by_name() 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-2022-50158?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-50158?
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-2022-50158 being exploited?
There is no known exploitation of CVE-2022-50158 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-50158, GHSA-2c4x-c2pm-jgmw, UBUNTU-CVE-2022-50158.