On Fri, Aug 20, 2021 at 11:11:54AM -0700, Yu-cheng Yu wrote: > diff --git a/arch/x86/kernel/shstk.c b/arch/x86/kernel/shstk.c > index 5993aa8db338..7c1ca2476a5e 100644 > --- a/arch/x86/kernel/shstk.c > +++ b/arch/x86/kernel/shstk.c > @@ -75,6 +75,61 @@ int shstk_setup(void) > return err; > } > > +int shstk_alloc_thread_stack(struct task_struct *tsk, unsigned long clone_flags, > + unsigned long stack_size) > +{ > + struct thread_shstk *shstk = &tsk->thread.shstk; > + struct cet_user_state *state; > + unsigned long addr; > + > + if (!shstk->size) > + return 0; > + > + /* > + * Earlier clone() does not pass stack_size. Use RLIMIT_STACK and What is "earlier clone()"? > + * cap to 4 GB. > + */ -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette