CVE-2026-43282 RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port
A missing null check in the Linux kernel RDMA ionic driver allows attackers to cause a denial of service via null pointer dereference.
- 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-2026-43282?
CVE-2026-43282 is a medium-severity vulnerability in Linux kernel, published on 6 May 2026. 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:
RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port
The function ionic_query_port() calls ib_device_get_netdev() without checking the return value which could lead to NULL pointer dereference, Fix it by checking the return value and return -ENODEV if the 'ndev' is NULL.
Weakness: CWE-476
Which versions are affected by CVE-2026-43282?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43282?
Apply the vendor's patch.
Is CVE-2026-43282 being exploited?
There is no known exploitation of CVE-2026-43282 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43282, DEBIAN-CVE-2026-43282, GHSA-5g7g-fprm-cgpp, UBUNTU-CVE-2026-43282.