CVE-2023-53066 qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info
A missing NULL check in the qed SR-IOV driver allows attackers to trigger a kernel crash, causing 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-2023-53066?
CVE-2023-53066 is a medium-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:
qed/qed_sriov: guard against NULL derefs from qed_iov_get_vf_info
We have to make sure that the info returned by the helper is valid before using it.
Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
Weakness: CWE-476
Which versions are affected by CVE-2023-53066?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53066?
Apply the vendor's patch.
Is CVE-2023-53066 being exploited?
There is no known exploitation of CVE-2023-53066 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53066, DEBIAN-CVE-2023-53066, GHSA-fhjp-7gr5-7mh5, UBUNTU-CVE-2023-53066.