Messages in this thread | | | Date | Fri, 2 Dec 2022 18:56:26 -0800 | From | Kees Cook <> | Subject | Re: [PATCH v4 38/39] x86/shstk: Add ARCH_SHSTK_UNLOCK |
| |
On Fri, Dec 02, 2022 at 04:36:05PM -0800, Rick Edgecombe wrote: > From: Mike Rapoport <rppt@linux.ibm.com> > > Userspace loaders may lock features before a CRIU restore operation has > the chance to set them to whatever state is required by the process > being restored. Allow a way for CRIU to unlock features. Add it as an > arch_prctl() like the other shadow stack operations, but restrict it being > called by the ptrace arch_pctl() interface. > > Tested-by: Pengfei Xu <pengfei.xu@intel.com> > Tested-by: John Allen <john.allen@amd.com> > Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
-- Kees Cook
| |