CVE-2024-38615 cpufreq: exit() callback is optional

Medium 5.5 Published Updated

A missing null check in the Linux kernel cpufreq exit callback can cause a system crash, requiring a kernel patch.

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-2024-38615?

CVE-2024-38615 is a medium-severity vulnerability in Linux kernel, published on 19 Jun 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: exit() callback is optional

The exit() callback is optional and shouldn't be called without checking a valid pointer first.

Also, we must clear freq_table pointer even if the exit() callback isn't present.

Weakness: CWE-476

Which versions are affected by CVE-2024-38615?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-38615?

Apply the vendor's patch.

Is CVE-2024-38615 being exploited?

There is no known exploitation of CVE-2024-38615 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-38615, DEBIAN-CVE-2024-38615, GHSA-54w4-35xc-2796, UBUNTU-CVE-2024-38615.

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