CVE-2025-37873 eth: bnxt: fix missing ring index trim on error path
A missing index trim in the bnxt network driver causes a kernel crash during DMA mapping errors, leading to 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-2025-37873?
CVE-2025-37873 is a high-severity vulnerability in Linux kernel, published on 9 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:
eth: bnxt: fix missing ring index trim on error path
Commit under Fixes converted tx_prod to be free running but missed masking it on the Tx error path. This crashes on error conditions, for example when DMA mapping fails.
Which versions are affected by CVE-2025-37873?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-37873?
Apply the vendor's patch.
Is CVE-2025-37873 being exploited?
There is no known exploitation of CVE-2025-37873 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-37873, DEBIAN-CVE-2025-37873, GHSA-pjvq-5xvq-v5jw, ROOT-OS-UBUNTU-2404-CVE-2025-37873, UBUNTU-CVE-2025-37873.