CVE-2026-74525 net: sxgbe: free TX rings on RX allocation failure
A memory leak in the Linux kernel sxgbe network driver occurs when RX ring allocation fails, potentially leading 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-2026-74525?
CVE-2026-74525 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:
net: sxgbe: free TX rings on RX allocation failure
When RX descriptor ring allocation fails, init_dma_desc_rings() only frees the partially allocated RX rings and returns. The TX rings that were allocated earlier in the same function are leaked.
Rearrange error labels to clean up TX rings upon RX failures.
Which versions are affected by CVE-2026-74525?
How do I fix CVE-2026-74525?
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-2026-74525 being exploited?
There is no known exploitation of CVE-2026-74525 in the wild and no public exploit code.
Sources
Also known as AZL-96195, BELL-CVE-2026-74525, DEBIAN-CVE-2026-74525, GHSA-45w5-jffw-4g9x, UBUNTU-CVE-2026-74525.