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

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.

Affected packages & fixed versions

Affected products (as reported)

References

• https://git.kernel.org/stable/c/b3ec263a719e0d499bd95d20012d90d7e8641655
• https://git.kernel.org/stable/c/33bc9fba3ae05863fabe3436ddca2ca4f4939c5e
• https://git.kernel.org/stable/c/9456381d8b60bb7dd42f2f04afe5ee4ce6e0bc12