CVE-2024-53230 cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()
A null pointer dereference in the Linux kernel's CPPC driver can cause a system crash, requiring a kernel patch to prevent 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-2024-53230?
CVE-2024-53230 is a medium-severity vulnerability in Linux kernel, published on 27 Dec 2024. 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:
cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()
cpufreq_cpu_get_raw() may return NULL if the cpu is not in policy->cpus cpu mask and it will cause null pointer dereference, so check NULL for cppc_get_cpu_cost().
Weakness: CWE-476
Which versions are affected by CVE-2024-53230?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53230?
Apply the vendor's patch.
Is CVE-2024-53230 being exploited?
There is no known exploitation of CVE-2024-53230 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-54887, BELL-CVE-2024-53230, DEBIAN-CVE-2024-53230, GHSA-8qpf-rmpc-xxmw, UBUNTU-CVE-2024-53230.