CVE-2024-40994 ptp: fix integer overflow in max_vclocks_store
An integer overflow in the Linux kernel PTP driver can cause a denial of service on 32-bit systems.
- 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-2024-40994?
CVE-2024-40994 is a high-severity 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:
ptp: fix integer overflow in max_vclocks_store
On 32bit systems, the "4 * max" multiply can overflow. Use kcalloc() to do the allocation to prevent this.
Weakness: CWE-190
Which versions are affected by CVE-2024-40994?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-40994?
Apply the vendor's patch.
Is CVE-2024-40994 being exploited?
There is no known exploitation of CVE-2024-40994 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-40994, DEBIAN-CVE-2024-40994, GHSA-fpf5-xw2p-f3m5, UBUNTU-CVE-2024-40994.