CVE-2022-49177 hwrng: cavium - fix NULL but dereferenced coccicheck error
A NULL pointer dereference in the Cavium hardware random number generator driver 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-2022-49177?
CVE-2022-49177 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:
hwrng: cavium - fix NULL but dereferenced coccicheck error
Fix following coccicheck warning: ./drivers/char/hw_random/cavium-rng-vf.c:182:17-20: ERROR: pdev is NULL but dereferenced.
Weakness: CWE-476
Which versions are affected by CVE-2022-49177?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49177?
Apply the vendor's patch.
Is CVE-2022-49177 being exploited?
There is no known exploitation of CVE-2022-49177 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-58725, GHSA-rrxc-83pc-mr58, ROOT-OS-DEBIAN-11-CVE-2022-49177, ROOT-OS-UBUNTU-2204-CVE-2022-49177, UBUNTU-CVE-2022-49177.