apparmor: Fix memleak in alloc_ns()
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 v5.15.86 by commit 5f509fa740b17307f0cba412485072f632d5af36, it was introduced in version v4.13 by commit a1bd627b46d169268a0ee5960899fb5be960a317. For more details please see the references link.