CVE-2022-49141 net: dsa: felix: fix possible NULL pointer dereference
A missing null check in the Linux kernel DSA Felix driver can cause a crash when memory allocation fails, 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-2022-49141?
CVE-2022-49141 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:
net: dsa: felix: fix possible NULL pointer dereference
As the possible failure of the allocation, kzalloc() may return NULL pointer. Therefore, it should be better to check the 'sgi' in order to prevent the dereference of NULL pointer.
Weakness: CWE-476
Which versions are affected by CVE-2022-49141?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49141?
Apply the vendor's patch.
Is CVE-2022-49141 being exploited?
There is no known exploitation of CVE-2022-49141 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49141, GHSA-hp67-rvgq-rwrp, UBUNTU-CVE-2022-49141.