CVE-2026-93154

CVE-2026-93154 is a use-after-free vulnerability in the Linux kernel's RDMA/irdma subsystem. The root cause is the absence of refcounting on user-space ring Memory Regions (MRs) : userspace could deregister the MRs backing QP, CQ, or SRQ rings while they were still in use. The fix bumps the MR's ...