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Dave Martin ab7876a98a arm64: elf: Enable BTI at exec based on ELF program properties 
For BTI protection to be as comprehensive as possible, it is
desirable to have BTI enabled from process startup.  If this is not
done, the process must use mprotect() to enable BTI for each of its
executable mappings, but this is painful to do in the libc startup
code.  It's simpler and more sound to have the kernel do it
instead.

To this end, detect BTI support in the executable (or ELF
interpreter, as appropriate), via the
NT_GNU_PROGRAM_PROPERTY_TYPE_0 note, and tweak the initial prot
flags for the process' executable pages to include PROT_BTI as
appropriate.

Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-03-16 17:19:48 +00:00
..
probes
arm64: remove __exception annotations
2019-10-28 11:22:38 +00:00
vdso
arm64: vdso: Remove stale files from old assembly implementation
2019-10-07 11:07:16 +01:00
vdso32
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
.gitignore
…
acpi_numa.c
acpi: Create subtable parsing infrastructure
2019-04-04 18:41:12 +02:00
acpi_parking_protocol.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
acpi.c
arm64: acpi: fix DAIF manipulation with pNMI
2020-01-22 14:41:22 +00:00
alternative.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
armv8_deprecated.c
arm64: armv8_deprecated: update the comments of armv8_deprecated_init()
2020-01-08 17:29:41 +00:00
asm-offsets.c
arm64: asm-offsets: add S_FP
2019-11-06 14:17:34 +00:00
cacheinfo.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
cpu_errata.c
Merge branch 'for-next/errata' into for-next/core
2020-01-22 11:35:05 +00:00
cpu_ops.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
cpu-reset.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpu-reset.S
arm64: kernel: avoid x18 in __cpu_soft_restart
2020-01-16 17:32:56 +00:00
cpufeature.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
cpuidle.c
PSCI: cpuidle: Refactor CPU suspend power_state parameter handling
2019-08-09 17:51:39 +01:00
cpuinfo.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
crash_core.c
arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE
2018-09-11 11:08:49 +01:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
debug-monitors.c
arm64: Remove unneeded rcu_read_lock from debug handlers
2019-08-01 15:00:27 +01:00
efi-entry.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
efi-header.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
efi-rt-wrapper.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
efi.c
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
2019-07-12 11:05:46 -07:00
entry-common.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
entry-fpsimd.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
entry-ftrace.S
arm64: ftrace: fix ifdeffery
2019-12-06 13:25:14 +00:00
entry.S
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-01-28 10:07:09 -08:00
fpsimd.c
arm64: nofpsmid: Handle TIF_FOREIGN_FPSTATE flag cleanly
2020-01-14 17:11:53 +00:00
ftrace.c
arm64: ftrace: minimize ifdeffery
2019-11-06 14:17:36 +00:00
head.S
Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core
2019-08-30 12:46:12 +01:00
hibernate-asm.S
arm64: mm: Logic to make offset_ttbr1 conditional
2019-08-09 11:17:24 +01:00
hibernate.c
arm64: hibernate: add trans_pgd public functions
2020-01-08 16:55:12 +00:00
hw_breakpoint.c
Printk changes for 5.5
2019-11-25 19:40:40 -08:00
hyp-stub.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
image-vars.h
arm64/efi: Move variable assignments after SECTIONS
2019-08-14 17:18:15 +01:00
image.h
arm64/efi: Move variable assignments after SECTIONS
2019-08-14 17:18:15 +01:00
insn.c
arm64: insn: consistently handle exit text
2019-12-04 11:32:20 +00:00
io.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
jump_label.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kaslr.c
arm64: Fix CONFIG_ARCH_RANDOM=n build
2020-02-11 09:47:01 +00:00
kexec_image.c
arm64: kexec_file: add crash dump support
2020-01-08 17:05:23 +00:00
kgdb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kuser32.S
docs: arm: convert docs to ReST and rename to *.rst
2019-07-15 09:20:24 -03:00
machine_kexec_file.c
arm64: kexec_file: add crash dump support
2020-01-08 17:05:23 +00:00
machine_kexec.c
Revert "arm64: kexec: make dtb_mem always enabled"
2020-01-10 16:00:50 +00:00
Makefile
arm64: entry: convert el1_sync to C
2019-10-28 11:22:47 +00:00
module-plts.c
arm64: implement ftrace with regs
2019-11-06 14:17:35 +00:00
module.c
arm64: implement ftrace with regs
2019-11-06 14:17:35 +00:00
module.lds
arm64: ftrace: emit ftrace-mod.o contents through code
2017-12-01 13:04:59 +00:00
paravirt.c
arm64: Retrieve stolen time as paravirtualized guest
2019-10-21 19:20:31 +01:00
pci.c
pci-v5.3-changes
2019-07-15 20:44:49 -07:00
perf_callchain.c
arm64: stacktrace: Factor out backtrace initialisation
2019-07-22 11:44:08 +01:00
perf_event.c
arm64: perf: Simplify the ARMv8 PMUv3 event attributes
2019-11-01 14:51:19 +00:00
perf_regs.c
compat: Move compat_timespec/ timeval to compat_time.h
2018-04-19 13:29:54 +02:00
pointer_auth.c
arm64: ptr auth: Move per-thread keys from thread_info to thread_struct
2018-12-13 16:42:47 +00:00
process.c
arm64: elf: Enable BTI at exec based on ELF program properties
2020-03-16 17:19:48 +00:00
psci.c
arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
2019-10-25 16:29:11 +01:00
ptrace.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
reloc_test_core.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
reloc_test_syms.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
relocate_kernel.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
return_address.c
arm64: unwind: Prohibit probing on return_address()
2019-08-01 15:00:26 +01:00
sdei.c
firmware: arm_sdei: use common SMCCC_CONDUIT_*
2019-10-14 10:55:14 +01:00
setup.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
signal32.c
arm64: signal: nofpsimd: Handle fp/simd context for signal frames
2020-01-14 17:11:46 +00:00
signal.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
sigreturn32.S
arm64: compat: Split kuser32
2019-04-23 18:01:57 +01:00
sleep.S
arm64: kernel: use aff3 instead of aff2 in comment
2019-06-04 14:51:01 +01:00
smccc-call.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
smp_spin_table.c
arm64: prefer __section from compiler_attributes.h
2019-08-13 18:32:15 +01:00
smp.c
arm64 updates for 5.5:
2019-12-06 14:18:01 -08:00
ssbd.c
Return ENODEV when the selected speculation misfeature is unsupported
2020-01-08 17:27:41 +00:00
stacktrace.c
arm64: unwind: Prohibit probing on return_address()
2019-08-01 15:00:26 +01:00
suspend.c
arm64: mm: Support Common Not Private translations
2018-09-18 12:02:27 +01:00
sys32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452
2019-06-19 17:09:08 +02:00
sys_compat.c
arm64: Silence clang warning on mismatched value/register sizes
2019-10-28 09:13:21 +00:00
sys.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
syscall.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
time.c
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
2020-02-12 17:26:38 +00:00
topology.c
Merge tag 'common/for-v5.4-rc1/cpu-topology' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux into for-next/cpu-topology
2019-08-14 10:07:00 +01:00
trace-events-emulation.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
traps.c
arm64: Basic Branch Target Identification support
2020-03-16 17:19:48 +00:00
vdso.c
arm64: compat: VDSO setup for compat layer
2019-06-22 21:21:08 +02:00
vmlinux.lds.S
arm64 updates for 5.5:
2019-12-06 14:18:01 -08:00