CVE-2022-50822 RDMA/restrack: Release MR restrack when delete
A memory leak in the Linux kernel RDMA subsystem allows attackers to cause denial of service by exhausting system memory.
- 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-2022-50822?
CVE-2022-50822 is a high-severity memory corruption vulnerability in Linux, published on 30 Dec 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:
RDMA/restrack: Release MR restrack when delete
The MR restrack also needs to be released when delete it, otherwise it cause memory leak as the task struct won't be released.
Which versions are affected by CVE-2022-50822?
How do I fix CVE-2022-50822?
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-2022-50822 being exploited?
There is no known exploitation of CVE-2022-50822 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50822, GHSA-6mq5-qvxj-rwc8, ROOT-OS-DEBIAN-11-CVE-2022-50822, UBUNTU-CVE-2022-50822.