CVE-2023-53040 ca8210: fix mac_len negative array access
A buffer overflow in the ca8210 driver allows attackers to cause memory corruption, potentially leading to code execution or system crashes.
- 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-2023-53040?
CVE-2023-53040 is a medium-severity memory corruption 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:
ca8210: fix mac_len negative array access
This patch fixes a buffer overflow access of skb->data if ieee802154_hdr_peek_addrs() fails.
Which versions are affected by CVE-2023-53040?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53040?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-53040 being exploited?
There is no known exploitation of CVE-2023-53040 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53040, DEBIAN-CVE-2023-53040, GHSA-c3hp-g2f9-9mxw, UBUNTU-CVE-2023-53040.