[PATCH 4.15 21/72] RDMA/ucma: Check AF family prior resolving address

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Leon Romanovsky commit 2975d5de6428ff6d9317e9948f0968f7d42e5d74 upstream. Garbage supplied by user will cause to UCMA module provide zero memory size for memcpy(),

[PATCH 4.15 21/72] RDMA/ucma: Check AF family prior resolving address

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Leon Romanovsky commit 2975d5de6428ff6d9317e9948f0968f7d42e5d74 upstream. Garbage supplied by user will cause to UCMA module provide zero memory size for memcpy(), because it wasn't checked,