CVE-2025-38597 drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port
A missing check in the Rockchip VOP2 driver causes a null pointer dereference, leading to a system crash when specific video port configurations are used.
- 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-2025-38597?
CVE-2025-38597 is a medium-severity vulnerability in Linux kernel, published on 19 Aug 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/rockchip: vop2: fail cleanly if missing a primary plane for a video-port
Each window of a vop2 is usable by a specific set of video ports, so while binding the vop2, we look through the list of available windows trying to find one designated as primary-plane and usable by that specific port.
The code later wants to use drm_crtc_init_with_planes with that found primary plane, but nothing has checked so far if a primary plane was actually found.
For whatever reason, the rk3576 vp2 does not have a usable primary window (if vp0 is also in use) which brought the issue to light and ended in a null-pointer dereference further down.
As we expect a primary-plane to exist for a video-port, add a check at the end of the window-iteration and fail probing if none was found.
Weakness: CWE-476
Which versions are affected by CVE-2025-38597?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38597?
Apply the vendor's patch.
Is CVE-2025-38597 being exploited?
There is no known exploitation of CVE-2025-38597 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38597, DEBIAN-CVE-2025-38597, GHSA-crhg-x4f2-mvmv, ROOT-OS-DEBIAN-12-CVE-2025-38597, ROOT-OS-DEBIAN-13-CVE-2025-38597, ROOT-OS-UBUNTU-2404-CVE-2025-38597 and 1 more.