In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid using null object of framebuffer Instead of using state->fb->obj[0] directly, get object from framebuffer by calling drm_gem_fb_get_obj() and return error code when object is null to avoid using null object of framebuffer.
https://git.kernel.org/stable/c/dd9ec0ea4cdde0fc48116e63969fc83e81d7ef46
https://git.kernel.org/stable/c/bcfa48ff785bd121316592b131ff6531e3e696bb
https://git.kernel.org/stable/c/7f35e01cb0ea4d295f5c067bb5c67dfcddaf05bc
https://git.kernel.org/stable/c/6ce0544cabaa608018d5922ab404dc656a9d8447
https://git.kernel.org/stable/c/330c8c1453848c04d335bad81371a66710210800