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[v16,0/7] Control-flow Enforcement: Indirect Branch Tracking

Message ID 20201209222752.2911-1-yu-cheng.yu@intel.com (mailing list archive)
Headers show
Series Control-flow Enforcement: Indirect Branch Tracking | expand

Message

Yu-cheng Yu Dec. 9, 2020, 10:27 p.m. UTC 
Control-flow Enforcement (CET) is a new Intel processor feature that blocks
return/jump-oriented programming attacks.  Details are in "Intel 64 and
IA-32 Architectures Software Developer's Manual" [1].

This is the second part of CET and enables Indirect Branch Tracking (IBT).
It is built on top of the shadow stack series.

Changes in v16:
- Rebase to v5.10-rc7.
- Small changes to reflect Kconfig changes that replaces Shadow Stack and
  IBT options with just one option.
- Update commit logs.

[1] Intel 64 and IA-32 Architectures Software Developer's Manual:

    https://software.intel.com/en-us/download/intel-64-and-ia-32-
    architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4

[2] Indirect Branch Tracking patches v15:

    https://lkml.kernel.org/r/20201110162448.9846-1-yu-cheng.yu@intel.com/

H.J. Lu (3):
  x86/cet/ibt: Update arch_prctl functions for Indirect Branch Tracking
  x86/vdso/32: Add ENDBR32 to __kernel_vsyscall entry point
  x86/vdso: Insert endbr32/endbr64 to vDSO

Yu-cheng Yu (4):
  x86/cet/ibt: Update Kconfig for user-mode Indirect Branch Tracking
  x86/cet/ibt: User-mode Indirect Branch Tracking support
  x86/cet/ibt: Handle signals for Indirect Branch Tracking
  x86/cet/ibt: Update ELF header parsing for Indirect Branch Tracking

 arch/x86/Kconfig                         |  1 +
 arch/x86/entry/vdso/Makefile             |  4 ++
 arch/x86/entry/vdso/vdso32/system_call.S |  3 ++
 arch/x86/include/asm/cet.h               |  3 ++
 arch/x86/kernel/cet.c                    | 60 +++++++++++++++++++++++-
 arch/x86/kernel/cet_prctl.c              |  5 ++
 arch/x86/kernel/fpu/signal.c             |  8 ++--
 arch/x86/kernel/process_64.c             |  8 ++++
 8 files changed, 87 insertions(+), 5 deletions(-)