CVE-2024-26855 net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()

In the Linux kernel, the following vulnerability has been resolved: net: ice: Fix potential NULL pointer dereference in icebridgesetlink The function icebridgesetlink may encounter a NULL pointer dereference if nlmsgfindattr returns NULL and brspec is dereferenced subsequently in nlaforeachnested...