CVE-2024-41149 block: avoid to reuse `hctx` not removed from cpuhp callback list
A use-after-free vulnerability in the Linux kernel block layer allows attackers to potentially execute arbitrary code or escalate privileges.
- 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-2024-41149?
CVE-2024-41149 is a high-severity use after free vulnerability in Linux kernel, published on 11 Jan 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:
block: avoid to reuse `hctx` not removed from cpuhp callback list
If the 'hctx' isn't removed from cpuhp callback list, we can't reuse it, otherwise use-after-free may be triggered.
Weakness: CWE-416
Which versions are affected by CVE-2024-41149?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-41149?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-41149 being exploited?
There is no known exploitation of CVE-2024-41149 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-41149, DEBIAN-CVE-2024-41149, GHSA-w2rf-r2gq-hxp9, UBUNTU-CVE-2024-41149.