CVE-2022-49952 misc: fastrpc: fix memory corruption on probe
A missing sanity check in the Linux kernel's fastrpc driver allows memory corruption during probe, potentially leading to code execution or privilege escalation.
- 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-2022-49952?
CVE-2022-49952 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 probe
Add the missing sanity check on the probed-session count to avoid corrupting memory beyond the fixed-size slab-allocated session array when there are more than FASTRPC_MAX_SESSIONS sessions defined in the devicetree.
Weakness: CWE-787
Which versions are affected by CVE-2022-49952?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49952?
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-2022-49952 being exploited?
There is no known exploitation of CVE-2022-49952 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49952, GHSA-phhg-p86p-p5xr, UBUNTU-CVE-2022-49952.