(CDT) Default yama attach scope sysctl setting
Yama sysctl setting to enable default attach scope settings enabling programs to use ptrace attach, access to /proc/PID/{mem,personality,stack,syscall}, and the syscalls processvmreadv and processvmwritev which are used for interprocess services, communication and introspection (like synchronisation, signaling, debugging, tracing and profiling) of processes.
