SELinux can still prevent you (even if you are `$UID=0`) from performing an operation such as writing to a file under `/etc`. You would need to be able to `set

SELinux can still prevent you (even if you are `$UID=0`) from performing an operation such as writing to a file under `/etc`. You would need to be able to `setenforce 0 `. A properly configured SELinux context can prevent you from doing that however we are starting to finally see some reports of dirtyc0w successfuly leading to `SELinux status: permissive` and permanent root.