On Sun, Sep 13, 2020 at 08:27:23PM +0200, Thomas Gleixner wrote: > On Sun, Sep 13 2020 at 17:44, Michael Ellerman wrote: > > Kees Cook <keescook@xxxxxxxxxxxx> writes: > > diff --git a/kernel/entry/common.c b/kernel/entry/common.c > > index 18683598edbc..901361e2f8ea 100644 > > --- a/kernel/entry/common.c > > +++ b/kernel/entry/common.c > > @@ -60,13 +60,15 @@ static long syscall_trace_enter(struct pt_regs *regs, long syscall, > > return ret; > > } > > > > + syscall = syscall_get_nr(current, regs); > > + > > if (unlikely(ti_work & _TIF_SYSCALL_TRACEPOINT)) > > trace_sys_enter(regs, syscall); > > > > syscall_enter_audit(regs, syscall); > > > > /* The above might have changed the syscall number */ > > - return ret ? : syscall_get_nr(current, regs); > > + return ret ? : syscall; > > } > > Yup, this looks right. Can you please send a proper patch? I already did on Friday: https://lore.kernel.org/lkml/20200912005826.586171-1-keescook@xxxxxxxxxxxx/ -- Kees Cook
