CVE-2023-53080 xsk: Add missing overflow check in xdp_umem_reg
An integer overflow in the Linux kernel's XDP socket implementation can lead to a denial of service condition.
- 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-2023-53080?
CVE-2023-53080 is a high-severity vulnerability in Linux kernel, published on 2 May 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:
xsk: Add missing overflow check in xdp_umem_reg
The number of chunks can overflow u32. Make sure to return -EINVAL on overflow. Also remove a redundant u32 cast assigning umem->npgs.
Which versions are affected by CVE-2023-53080?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53080?
Apply the vendor's patch.
Is CVE-2023-53080 being exploited?
There is no known exploitation of CVE-2023-53080 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53080, DEBIAN-CVE-2023-53080, GHSA-6jq5-v5mp-qr69, UBUNTU-CVE-2023-53080.