CVE-2026-72112 io_uring/bpf-ops: reject re-registration of an already-bound ops

In the Linux kernel, the following vulnerability has been resolved: iouring/bpf-ops: reject re-registration of an already-bound ops ioinstallbpf only rejects a second registration on the ctx side ctx-bpfops and sets the per-map back-pointer ops-priv unconditionally. The structops link path never...