CVE-2024-58016 safesetid: check size of policy writes
A local attacker can trigger a kernel warning and potential denial of service by writing an excessively large buffer to a safesetid sysfs entry.
- 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-2024-58016?
CVE-2024-58016 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Feb 2025. 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:
safesetid: check size of policy writes
syzbot attempts to write a buffer with a large size to a sysfs entry with writes handled by handle_policy_update(), triggering a warning in kmalloc.
Check the size specified for write buffers before allocating.
[PM: subject tweak]
Which versions are affected by CVE-2024-58016?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-58016?
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-2024-58016 being exploited?
There is no known exploitation of CVE-2024-58016 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-58016, DEBIAN-CVE-2024-58016, GHSA-f32m-f53g-3875, ROOT-OS-UBUNTU-2404-CVE-2024-58016, UBUNTU-CVE-2024-58016.