CVE-2025-21989 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/amd/display: fix missing .is_two_pixels_per_container

Starting from 6.11 AMDGPU driver while being loaded with amdgpu.dc=1 due to lack of .is_two_pixels_per_container function in dce60_tg_funcs causes a NULL pointer dereference on PCs with old GPUs such as R9 280X.

So this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.

(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)

Reference

https://git.kernel.org/stable/c/36d04c9313d8d83ead92242f037099ac73e02120 https://git.kernel.org/stable/c/e204aab79e01bc8ff750645666993ed8b719de57 https://git.kernel.org/stable/c/fefa811e616b5d0b555ed65743e528a0a8a0b377