CVE-2026-74378

CVE-2026-74378 affects the Linux kernel RDMA/rxe path: get_srq_wqe() reads wqe->dma.num_sge from a shared userspace-mapped buffer. The issue is a TOCTOU heap overflow caused by validating num_sge against max_sge and then re-reading the same field to compute memcpy size, allowing a concurrent u...