CVE-2025-39709 media: venus: protect against spurious interrupts during probe
A race condition during Linux kernel boot can cause a NULL pointer dereference in the Venus media driver, leading to a system crash.
- 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-2025-39709?
CVE-2025-39709 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:
media: venus: protect against spurious interrupts during probe
Make sure the interrupt handler is initialized before the interrupt is registered.
If the IRQ is registered before hfi_create(), it's possible that an interrupt fires before the handler setup is complete, leading to a NULL dereference.
This error condition has been observed during system boot on Rb3Gen2.
Weakness: CWE-476
Which versions are affected by CVE-2025-39709?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-39709?
Apply the vendor's patch.
Is CVE-2025-39709 being exploited?
There is no known exploitation of CVE-2025-39709 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-66929, BELL-CVE-2025-39709, DEBIAN-CVE-2025-39709, GHSA-3px4-cc65-vwjj, ROOT-OS-DEBIAN-11-CVE-2025-39709, ROOT-OS-DEBIAN-12-CVE-2025-39709 and 4 more.