CVE-2026-72496 RDMA/bnxt_re: Proper rollback if the ioremap fails
A missing error check in the bnxt_re RDMA driver causes a null pointer dereference if ioremap fails, leading to a kernel crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72496?
CVE-2026-72496 is a critical vulnerability in Linux, published on 15 Aug 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/bnxt_re: Proper rollback if the ioremap fails
bnxt_qplib_alloc_dpi returns success even if ioremap fails. Add the proper rollback when the ioremap fails and return -ENOMEM status.
Which versions are affected by CVE-2026-72496?
How do I fix CVE-2026-72496?
Apply the vendor's patch.
Is CVE-2026-72496 being exploited?
There is no known exploitation of CVE-2026-72496 in the wild and no public exploit code.
Sources
Also known as AZL-96099, BELL-CVE-2026-72496, DEBIAN-CVE-2026-72496, GHSA-hg58-cc7q-mhx9, UBUNTU-CVE-2026-72496.