In the Linux kernel, the following vulnerability has been resolved: drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() drm_mode_vrefresh() is trying to avoid divide by zero by checking whether htotal or vtotal are zero. But we may still end up with a div-by-zero of vtotal*htotal*...
https://git.kernel.org/stable/c/e7c7b48a0fc5ed83baae400a1b15e33978c25d7f
https://git.kernel.org/stable/c/b39de5a71bac5641d0fda33d1cf5682d82cf1ae5
https://git.kernel.org/stable/c/9398332f23fab10c5ec57c168b44e72997d6318e
https://git.kernel.org/stable/c/69fbb01e891701e6d04db1ddb5ad49e42c4dd963
https://git.kernel.org/stable/c/47c8b6cf1d08f0ad40d7ea7b025442e51b35ee1f