Merge branch 'gtp-pfcp-fix-use-after-free-of-udp-tunnel-socket'

Kuniyuki Iwashima says:

====================
gtp/pfcp: Fix use-after-free of UDP tunnel socket.

Xiao Liang pointed out weird netns usages in ->newlink() of
gtp and pfcp.

This series fixes the issues.

Link: https://lore.kernel.org/netdev/20250104125732.17335-1-shaw.leon@gmail.com/
Changes:
  v2:
    * Patch 1
      * Fix uninit/unused local var

  v1: https://lore.kernel.org/netdev/20250108062834.11117-1-kuniyu@amazon.com/
====================

Link: https://patch.msgid.link/20250110014754.33847-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>