CVE-2024-40997 cpufreq: amd-pstate: fix memory leak on CPU EPP exit
A memory leak in the AMD P-State driver allows attackers to exhaust system memory, potentially causing a 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-2024-40997?
CVE-2024-40997 is a medium-severity denial of service vulnerability in Linux kernel, published on 12 Jul 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: amd-pstate: fix memory leak on CPU EPP exit
The cpudata memory from kzalloc() in amd_pstate_epp_cpu_init() is not freed in the analogous exit function, so fix that.
[ rjw: Subject and changelog edits ]
Weakness: CWE-401
Which versions are affected by CVE-2024-40997?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-40997?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-40997 being exploited?
There is no known exploitation of CVE-2024-40997 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-47926, BELL-CVE-2024-40997, DEBIAN-CVE-2024-40997, GHSA-4p9w-ppgq-rm99, UBUNTU-CVE-2024-40997.