afunix: Get userns from inskb in unixdiaggetexact().
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.13 by commit 9c1d6f79a2c7b8221dcec27defc6dc461052ead4, it was introduced in version v5.3 by commit cae9910e73446cac68a54e3a7b02aaa12b689026. For more details please see the references link.