CVE-2025-39934 drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ
A race condition in the ANX7625 DRM bridge driver allows a local attacker to cause a kernel crash via a NULL pointer dereference.
- 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-2025-39934?
CVE-2025-39934 is a medium-severity vulnerability in Linux kernel, published on 4 Oct 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:
drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ
If the interrupt occurs before resource initialization is complete, the interrupt handler/worker may access uninitialized data such as the I2C tcpc_client device, potentially leading to NULL pointer dereference.
Weakness: CWE-476
Which versions are affected by CVE-2025-39934?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-39934?
Apply the vendor's patch.
Is CVE-2025-39934 being exploited?
There is no known exploitation of CVE-2025-39934 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-68129, BELL-CVE-2025-39934, DEBIAN-CVE-2025-39934, GHSA-hpjc-m442-8hrm, ROOT-OS-DEBIAN-12-CVE-2025-39934, ROOT-OS-DEBIAN-13-CVE-2025-39934 and 3 more.