In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Add NULL test for 'timing generator' in 'dcn21_set_pipe()' In "u32 otg_inst = pipe_ctx->stream_res.tg->inst;" pipe_ctx->stream_res.tg could be NULL, it is relying on the caller to ensure the tg is not NULL.
https://git.kernel.org/stable/c/66951d98d9bf45ba25acf37fe0747253fafdf298
https://git.kernel.org/stable/c/3f3c237a706580326d3b7a1b97697e5031ca4667
https://git.kernel.org/stable/c/39f24c08363af1cd945abad84e3c87fd3e3c845a