The previous version of CET Branch Tracking/PTRACE patches is at the following link: https://lkml.org/lkml/2018/10/11/662 Summary of changes from v5: Remove the legacy code bitmap allocation from kernel. Now GLIBC allocates the bitmap and passes it to the kernel. Some small fixes. H.J. Lu (3): x86: Insert endbr32/endbr64 to vDSO x86/vsyscall/32: Add ENDBR32 to vsyscall entry point x86/vsyscall/64: Add ENDBR64 to vsyscall entry points Yu-cheng Yu (8): x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking x86/cet/ibt: User-mode indirect branch tracking support x86/cet/ibt: Add IBT legacy code bitmap setup function mm/mmap: Add IBT bitmap size to address space limit check x86/cet/ibt: ELF header parsing for IBT x86/cet/ibt: Add arch_prctl functions for IBT x86/cet/ibt: Add ENDBR to op-code-map x86/cet: Add PTRACE interface for CET arch/x86/Kconfig | 16 ++++++ arch/x86/Makefile | 7 +++ arch/x86/entry/vdso/.gitignore | 4 ++ arch/x86/entry/vdso/Makefile | 12 ++++- arch/x86/entry/vdso/vdso-layout.lds.S | 1 + arch/x86/entry/vdso/vdso32/system_call.S | 3 ++ arch/x86/entry/vsyscall/vsyscall_emu_64.S | 9 ++++ arch/x86/include/asm/cet.h | 8 +++ arch/x86/include/asm/disabled-features.h | 8 ++- arch/x86/include/asm/fpu/regset.h | 7 +-- arch/x86/include/asm/mmu_context.h | 10 ++++ arch/x86/include/uapi/asm/elf_property.h | 1 + arch/x86/include/uapi/asm/prctl.h | 2 + arch/x86/kernel/cet.c | 54 +++++++++++++++++++ arch/x86/kernel/cet_prctl.c | 21 ++++++++ arch/x86/kernel/cpu/common.c | 17 ++++++ arch/x86/kernel/elf.c | 5 ++ arch/x86/kernel/fpu/regset.c | 41 ++++++++++++++ arch/x86/kernel/process.c | 1 + arch/x86/kernel/ptrace.c | 16 ++++++ arch/x86/lib/x86-opcode-map.txt | 13 ++++- include/uapi/linux/elf.h | 1 + mm/mmap.c | 19 ++++++- .../arch/x86/include/asm/disabled-features.h | 8 ++- tools/objtool/arch/x86/lib/x86-opcode-map.txt | 13 ++++- 25 files changed, 286 insertions(+), 11 deletions(-) -- 2.17.1
