cve-2026-46053

CVE-2026-46053 is a Linux kernel vulnerability in the Reliable Datagram Sockets (RDS) RDMA subsystem, specifically in the __rds_rdma_map() function, where a failed copy of an RDMA memory-region cookie back to user space can trigger incorrect duplicate resource cleanup. Published by NVD on May 27, 2026, it has no current CVSS score. While not a Windows flaw, it matters for Windows administrators because Linux kernel components like RDS RDMA are increasingly used in hybrid infrastructure, high-throughput networking, and memory registration paths. The tag covers discussion of this vulnerability, its technical details, and implications for Windows-centric environments that rely on Linux-based networking or virtualization layers.