Linux Kernel ZcopyReaper Vulnerability Lets Local Attackers Gain Root Privileges

Security researchers have disclosed a local privilege escalation vulnerability in the Linux kernel related to the Reliable Datagram Sockets (RDS) zero-copy send path. This vulnerability could let an unprivileged local attacker gain root privileges. It is tracked as CVE-2026-43502 and is referred to as “ZcopyReaper.” NebuSec researcher Yuan Tan...