CVE-2026-72039 bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp()
A memory leak in the bnx2x network driver can lead to resource exhaustion and denial of service.
- 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-2026-72039?
CVE-2026-72039 is a memory corruption 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:
bnx2x: fix potential memory leak in bnx2x_alloc_mem_bp()
If the allocation of fp[i].tpa_info fails, the error path will not free the struct bnx2x_fastpath allocated earlier, as it is not linked to the bp structure yet. Fix that by linking it immediately after allocation.
Which versions are affected by CVE-2026-72039?
How do I fix CVE-2026-72039?
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-2026-72039 being exploited?
There is no known exploitation of CVE-2026-72039 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72039, DEBIAN-CVE-2026-72039, GHSA-gq9w-rcq5-q8jh, UBUNTU-CVE-2026-72039.