CVE-2026-80658 drm/rockchip: dw_dp: Fix null-ptr-deref in dw_dp_remove()

Not scored Published 28 Aug 2026 Updated 28 Aug 2026

A null pointer dereference in the Rockchip DisplayPort driver can cause a kernel crash, leading to denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2026-80658?

CVE-2026-80658 is a vulnerability in Linux, published on 28 Aug 2026. 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: dw_dp: Fix null-ptr-deref in dw_dp_remove()

Attempting to access driver data in the platform driver ->remove() callback may lead to a null pointer dereference since there is no guaranty that the component ->bind() callback invoking platform_set_drvdata() was executed.

A common scenario is when Rockchip DRM driver didn't manage to run component_bind_all() because of an (unrelated) error causing early return from rockchip_drm_bind().

Drop the unnecessary call to platform_get_drvdata() and, instead, reference the target device structure via platform_device.

Which versions are affected by CVE-2026-80658?

How do I fix CVE-2026-80658?

Apply the vendor's patch.

Is CVE-2026-80658 being exploited?

There is no known exploitation of CVE-2026-80658 in the wild and no public exploit code.

Sources

Also known as BELL-CVE-2026-80658, DEBIAN-CVE-2026-80658, GHSA-7w3c-254r-4wj3, UBUNTU-CVE-2026-80658.