RDMA/core: Fix null-ptr-deref in ibcorecleanup()
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 v6.0.8 by commit ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9, it was introduced in version v4.3 by commit 03db3a2d81e6e84f3ed3cb9e087cae17d762642b. For more details please see the references link.