CVE-2025-38341 eth: fbnic: avoid double free when failing to DMA-map FW msg
A double free vulnerability in the fbnic network driver allows attackers to cause a denial of service or potentially execute code via crafted firmware messages.
- 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-2025-38341?
CVE-2025-38341 is a high-severity use after free vulnerability in Linux kernel, published on 10 Jul 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: fbnic: avoid double free when failing to DMA-map FW msg
The semantics are that caller of fbnic_mbx_map_msg() retains the ownership of the message on error. All existing callers dutifully free the page.
Weakness: CWE-415
Which versions are affected by CVE-2025-38341?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38341?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-38341 being exploited?
There is no known exploitation of CVE-2025-38341 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38341, DEBIAN-CVE-2025-38341, GHSA-89fh-8vx8-h844, UBUNTU-CVE-2025-38341.