CVE-2025-39676 scsi: qla4xxx: Prevent a potential error pointer dereference
A potential error pointer dereference in the qla4xxx SCSI driver can cause a kernel Oops, 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-2025-39676?
CVE-2025-39676 is a medium-severity vulnerability in Debian Debian Linux, published on 5 Sep 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:
scsi: qla4xxx: Prevent a potential error pointer dereference
The qla4xxx_get_ep_fwdb() function is supposed to return NULL on error, but qla4xxx_ep_connect() returns error pointers. Propagating the error pointers will lead to an Oops in the caller, so change the error pointers to NULL.
Weakness: CWE-476
Which versions are affected by CVE-2025-39676?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-39676?
Apply the vendor's patch.
Is CVE-2025-39676 being exploited?
There is no known exploitation of CVE-2025-39676 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-67034, AZL-73653, BELL-CVE-2025-39676, DEBIAN-CVE-2025-39676, GHSA-2m84-5929-4fcx, ROOT-OS-DEBIAN-11-CVE-2025-39676 and 5 more.