CVE-2026-72491 net/9p: fix race condition on rdma->state in trans_rdma.c

In the Linux kernel, the following vulnerability has been resolved: net/9p: fix race condition on rdma-state in transrdma.c The rdma-state field is modified without holding reqlock in both recvdone and p9cmeventhandler, while rdmarequest accesses the same field under the reqlock spinlock. This...