kernel: RDMA/rxe: Fix incomplete state save in rxe_requester

An incorrect state restoration flaw was found in the Linux kernel's RDMA rxe soft-RoCE driver in the requester packet transmission logic. A local user with access to RDMA devices can trigger this issue when network layer packet drops occur during RDMA send operations, causing the work queue eleme...

CVE-2019-16921

In the Linux kernel before 4.17, hnsroceallocucontext in drivers/infiniband/hw/hns/hnsrocemain.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813...