CVE-2022-49950 misc: fastrpc: fix memory corruption on open
A memory corruption vulnerability in the Linux kernel's fastrpc driver allows attackers to corrupt memory and potentially execute code or escalate privileges.
- 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-2022-49950?
CVE-2022-49950 is a high-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:
misc: fastrpc: fix memory corruption on open
The probe session-duplication overflow check incremented the session count also when there were no more available sessions so that memory beyond the fixed-size slab-allocated session array could be corrupted in fastrpc_session_alloc() on open().
Weakness: CWE-787
Which versions are affected by CVE-2022-49950?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49950?
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-2022-49950 being exploited?
There is no known exploitation of CVE-2022-49950 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49950, GHSA-4442-gqg3-5qvm, UBUNTU-CVE-2022-49950.