SUNRPC: Ensure we flush any closed sockets before xsxprtfree()
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 v5.17.3 by commit d21287d8a4589dd8513038f887ece980fbc399cf, it was introduced in version v5.1 by commit a73881c96d73ee72b7dbbd38a6eeef66182a8ef7. For more details please see the references link.