CVE-2025-38452 net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe()
A missing null check in the RTSN Ethernet driver probe function can cause a kernel crash, leading to 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-2025-38452?
CVE-2025-38452 is a medium-severity vulnerability in Linux kernel, published on 25 Jul 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:
net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe()
Add check for the return value of rcar_gen4_ptp_alloc() to prevent potential null pointer dereference.
Weakness: CWE-476
Which versions are affected by CVE-2025-38452?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38452?
Apply the vendor's patch.
Is CVE-2025-38452 being exploited?
There is no known exploitation of CVE-2025-38452 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38452, DEBIAN-CVE-2025-38452, GHSA-xpjq-43c4-m796, UBUNTU-CVE-2025-38452.