On 08/06/18 00:37, Yu-cheng Yu wrote: > This series introduces CET - Shadow stack > > At the high level, shadow stack is: > > Allocated from a task's address space with vm_flags VM_SHSTK; > Its PTEs must be read-only and dirty; > Fixed sized, but the default size can be changed by sys admin. > > For a forked child, the shadow stack is duplicated when the next > shadow stack access takes place. > > For a pthread child, a new shadow stack is allocated. > > The signal handler uses the same shadow stack as the main program. > Even with sigaltstack()? Balbir Singh.