CVE-2026-89531

In the Linux kernel, the following vulnerability has been resolved:

svcrdma: Reject connection when transport allocation fails

handle_connect_req() returns without action when

svc_rdma_create_xprt() fails to allocate the new transport.

The CM core returns 0 for CONNECT_REQUEST events, so it does

not destroy the new rdma_cm_id. Each allocation failure under

memory pressure leaks one rdma_cm_id, and a remote peer driving

connection attempts can amplify this.

Reject the connection by returning a non-zero status from the

CM event handler, which tells the CM core to destroy the

orphaned cm_id.