In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix double free err_addr pointer warnings In amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages will be run many times so that double free err_addr in some special case. So set the err_addr to NULL to avoid the warnings.
https://git.kernel.org/stable/c/8e24beb3c2b08a4763f920399a9cc577ed440a1a
https://git.kernel.org/stable/c/506c245f3f1cd989cb89811a7f06e04ff8813a0d