CVE-2024-45008 Input: MT - limit max slots
A local attacker can trigger excessive memory allocation in the Linux kernel via a specific ioctl call, leading to 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-2024-45008?
CVE-2024-45008 is a medium-severity denial of service vulnerability in Linux kernel, published on 4 Sep 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:
Input: MT - limit max slots
syzbot is reporting too large allocation at input_mt_init_slots(), for num_slots is supplied from userspace using ioctl(UI_DEV_CREATE).
Since nobody knows possible max slots, this patch chose 1024.
Which versions are affected by CVE-2024-45008?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-45008?
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-2024-45008 being exploited?
There is no known exploitation of CVE-2024-45008 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-45008, DEBIAN-CVE-2024-45008, GHSA-82q8-gr92-pr6w, UBUNTU-CVE-2024-45008.