CVE-2024-58017 printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX
A signed integer overflow in the Linux kernel's printk subsystem can lead to undefined behavior, 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-2024-58017?
CVE-2024-58017 is a medium-severity 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:
printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX
Shifting 1 << 31 on a 32-bit int causes signed integer overflow, which leads to undefined behavior. To prevent this, cast 1 to u32 before performing the shift, ensuring well-defined behavior.
This change explicitly avoids any potential overflow by ensuring that the shift occurs on an unsigned 32-bit integer.
Weakness: CWE-190
Which versions are affected by CVE-2024-58017?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-58017?
Apply the vendor's patch.
Is CVE-2024-58017 being exploited?
There is no known exploitation of CVE-2024-58017 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-57808, BELL-CVE-2024-58017, DEBIAN-CVE-2024-58017, GHSA-572c-4f8h-65c4, ROOT-OS-UBUNTU-2404-CVE-2024-58017, UBUNTU-CVE-2024-58017.