In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: added NULL check at start of dc_validate_stream [Why] prevent invalid memory access [How] check if dc and stream are NULL
https://git.kernel.org/stable/c/6bf920193ba1853bad780bba565a789246d9003c
https://git.kernel.org/stable/c/356fcce9cdbfe338a275e9e1836adfdd7f5c52a9
https://git.kernel.org/stable/c/26c56049cc4f1705b498df013949427692a4b0d5
https://git.kernel.org/stable/c/154a50bf4221a6a6ccf88d565b8184da7c40a2dd