On Tue, Oct 04, 2022 at 11:44:16AM +0300, Mike Rapoport wrote: > On Mon, Oct 03, 2022 at 04:59:43PM -0700, Kees Cook wrote: > > On Thu, Sep 29, 2022 at 03:29:34PM -0700, Rick Edgecombe wrote: > > > From: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx> > > > > > > Some applications (like GDB and CRIU) would like to tweak CET state via > > > > Eee. Does GDB really need this? Can we make this whole thing > > CONFIG-depend on CRIU? > > GDB, at least its Intel fork uses this. I don't see how they can jump > between frames without an ability to modify shadow stack contents. > > Last I looked they used NT_X86_CET to update SSP and ptrace(POKEDATA) to > write to the shadow stack. Okay, thanks! I appreciate having specific examples. :) -- Kees Cook
