The patch below adds the base set of LSM hooks for System V IPC to the
2.5.41 kernel.  These hooks permit a security module to label
semaphore sets, message queues, and shared memory segments and to
perform security checks on these objects that parallel the existing
IPC access checks.  Additional LSM hooks for labeling and controlling
individual messages sent on a single message queue and for providing
fine-grained distinctions among IPC operations will be submitted
separately after this base set of LSM IPC hooks has been accepted.