CVE-2022-49629 nexthop: Fix data-races around nexthop_compat_mode.
A data race in the Linux kernel's nexthop module could lead to inconsistent state during concurrent access, requiring a patch to ensure thread safety.
- 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-2022-49629?
CVE-2022-49629 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:
nexthop: Fix data-races around nexthop_compat_mode.
While reading nexthop_compat_mode, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.
Weakness: CWE-362
Which versions are affected by CVE-2022-49629?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49629?
Apply the vendor's patch.
Is CVE-2022-49629 being exploited?
There is no known exploitation of CVE-2022-49629 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49629, GHSA-3hp7-rrvf-6j8r, UBUNTU-CVE-2022-49629.