CVE-2024-53042 ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()

In the Linux kernel, the following vulnerability has been resolved: ipv4: iptunnel: Fix suspicious RCU usage warning in iptunnelinitflow There are code paths from which the function is called without holding the RCU read lock, resulting in a suspicious RCU usage warning 1. Fix by using...