xfrm: fix refcount leak in __xfrmpolicycheck()
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 v4.19.257 by commit 0769491a8acd3e85ca4c3f65080eac2c824262df, it was introduced in version v2.6.19 by commit 134b0fc544ba062498451611cb6f3e4454221b3d. For more details please see the references link.