CVE-2022-49432 powerpc/xics: fix refcount leak in icp_opal_init()
A refcount leak in the Linux kernel's powerpc xics driver 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-2022-49432?
CVE-2022-49432 is a medium-severity vulnerability in Linux kernel, published on 26 Feb 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/xics: fix refcount leak in icp_opal_init()
The of_find_compatible_node() function returns a node pointer with refcount incremented, use of_node_put() on it when done.
Which versions are affected by CVE-2022-49432?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49432?
Apply the vendor's patch.
Is CVE-2022-49432 being exploited?
There is no known exploitation of CVE-2022-49432 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49432, GHSA-p93v-4wqp-w2fh, UBUNTU-CVE-2022-49432.