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OpenCloudOS-Kernel/arch/arm64/kernel
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Will Deacon 169113ece0 arm64: compat: Avoid sending SIGILL for unallocated syscall numbers 
The ARM Linux kernel handles the EABI syscall numbers as follows:

  0           - NR_SYSCALLS-1	: Invoke syscall via syscall table
  NR_SYSCALLS - 0xeffff		: -ENOSYS (to be allocated in future)
  0xf0000     - 0xf07ff		: Private syscall or -ENOSYS if not allocated
  > 0xf07ff			: SIGILL

Our compat code gets this wrong and ends up sending SIGILL in response
to all syscalls greater than NR_SYSCALLS which have a value greater
than 0x7ff in the bottom 16 bits.

Fix this by defining the end of the ARM private syscall region and
checking the syscall number against that directly. Update the comment
while we're at it.

Cc: <stable@vger.kernel.org>
Cc: Dave Martin <Dave.Martin@arm.com>
Reported-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
 		2019-01-04 14:18:01 +00:00
..
probes arm64: kprobe: make page to RO mode when allocate it 2018-11-02 18:15:07 +00:00
vdso arm64: Add build salt to the vDSO 2018-07-18 01:18:05 +09:00
.gitignore arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
Makefile arm64: replace arm64-obj-* in Makefile with obj-* 2019-01-04 10:09:21 +00:00
acpi.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
acpi_numa.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
acpi_parking_protocol.c arm64: fix endianness annotation in acpi_parking_protocol.c 2017-06-29 11:33:15 +01:00
alternative.c arm64: alternative: Use true and false for boolean values 2018-08-08 11:20:54 +01:00
armv8_deprecated.c arm64: kill config_sctlr_el1() 2018-07-12 14:40:38 +01:00
asm-offsets.c arm64: enable per-task stack canaries 2018-12-12 18:45:31 +00:00
cacheinfo.c arm64: Add support for ACPI based firmware tables 2018-05-17 17:28:09 +01:00
cpu-reset.S arm64: kexec_file: invoke the kernel without purgatory 2018-12-06 14:38:53 +00:00
cpu-reset.h arm64: kexec: always reset to EL2 if present 2018-07-04 18:34:24 +01:00
cpu_errata.c arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches 2018-12-13 16:42:47 +00:00
cpu_ops.c arm64: cpu_ops: Add missing 'const' qualifiers 2017-12-01 13:05:08 +00:00
cpufeature.c arm64: cpufeature: Rework ptr auth hwcaps using multi_entry_cap_matches 2018-12-13 16:42:47 +00:00
cpuidle.c ARM64 / cpuidle: Use new cpuidle macro for entering retention state 2018-01-02 13:50:34 +00:00
cpuinfo.c arm64: add basic pointer authentication support 2018-12-13 16:42:46 +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 arm64: kdump: fix small typo 2018-11-02 17:24:17 +00:00
debug-monitors.c signal/arm64: Add and use arm64_force_sig_fault where appropriate 2018-09-27 21:54:43 +02:00
efi-entry.S arm64: Add software workaround for Falkor erratum 1041 2018-02-06 22:53:13 +00:00
efi-header.S arm64: efi: split Image code and data into separate PE/COFF sections 2017-04-04 17:50:59 +01:00
efi-rt-wrapper.S efi/arm64: Check whether x18 is preserved by runtime services calls 2018-03-09 08:58:22 +01:00
efi.c efi/arm64: Check whether x18 is preserved by runtime services calls 2018-03-09 08:58:22 +01:00
entry-fpsimd.S arm64/sve: Write ZCR_EL1 on context switch only if changed 2018-05-17 18:19:53 +01:00
entry-ftrace.S arm64: frace: use asm EXPORT_SYMBOL() 2018-12-10 11:50:12 +00:00
entry.S arm64: entry: remove unused register aliases 2019-01-03 18:03:41 +00:00
fpsimd.c signal/arm64: Use send_sig_fault where appropriate 2018-09-27 21:55:23 +02:00
ftrace.c arm64: ftrace: always pass instrumented pc in x0 2018-11-30 13:29:05 +00:00
head.S arm64/kvm: consistently handle host HCR_EL2 flags 2018-12-13 16:42:45 +00:00
hibernate-asm.S arm64: mm: Offset TTBR1 to allow 52-bit PTRS_PER_PGD 2018-12-10 18:42:17 +00:00
hibernate.c arm64: ssbd: Restore mitigation status on CPU resume 2018-05-31 17:35:19 +01:00
hw_breakpoint.c perf/arch/arm64: Implement hw_breakpoint_arch_parse() 2018-06-26 09:07:56 +02:00
hyp-stub.S arm64: hyp-stub: Zero x0 on successful stub handling 2017-04-09 07:49:35 -07:00
image.h Merge branch 'for-next/kexec' into aarch64/for-next/core 2018-12-10 18:57:17 +00:00
insn.c arm64/insn: add support for emitting ADR/ADRP instructions 2018-11-27 18:47:33 +00:00
io.c arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io 2017-10-24 16:23:07 +01:00
irq.c arm64: Use the new GENERIC_IRQ_MULTI_HANDLER 2018-08-03 12:14:09 +02:00
jump_label.c arm64/kernel: jump_label: Switch to relative references 2018-09-27 17:56:47 +02:00
kaslr.c arm64/kernel: kaslr: reduce module randomization range to 4 GB 2018-03-08 13:49:26 +00:00
kexec_image.c arm64: kexec_file: forbid kdump via kexec_file_load() 2018-12-07 15:28:21 +00:00
kgdb.c arm64/debug: Fix registers on sleeping tasks 2018-03-06 18:52:34 +00:00
kuser32.S arm64: Add __NR_* definitions for compat syscalls 2014-07-10 11:02:40 +01:00
machine_kexec.c arm64: kexec_file: invoke the kernel without purgatory 2018-12-06 14:38:53 +00:00
machine_kexec_file.c arm64: kexec_file: include linux/vmalloc.h 2018-12-11 10:37:38 +00:00
module-plts.c arm64/module: switch to ADRP/ADD sequences for PLT entries 2018-11-27 19:00:45 +00:00
module.c arm64/module: switch to ADRP/ADD sequences for PLT entries 2018-11-27 19:00:45 +00:00
module.lds arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00
paravirt.c x86/paravirt: Use a single ops structure 2018-09-03 16:50:35 +02:00
pci.c arm64: PCI: Remove node-local allocations when initialising host controller 2018-09-17 16:33:23 -05:00
perf_callchain.c arm64: perf: strip PAC when unwinding userspace 2018-12-13 16:42:46 +00:00
perf_event.c arm64: perf: set suppress_bind_attrs flag to true 2018-11-21 13:16:34 +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: add basic pointer authentication support 2018-12-13 16:42:46 +00:00
psci.c arm64: remove unused asm/compiler.h header file 2018-10-01 11:57:04 +01:00
ptrace.c arm64: expose user PAC bit positions via ptrace 2018-12-13 16:42:46 +00:00
reloc_test_core.c arm64: fix undefined reference to 'printk' 2018-03-19 18:14:25 +00:00
reloc_test_syms.S arm64: fix undefined reference to 'printk' 2018-03-19 18:14:25 +00:00
relocate_kernel.S arm64: kexec_file: invoke the kernel without purgatory 2018-12-06 14:38:53 +00:00
return_address.c arm64: unwind: remove sp from struct stackframe 2017-08-09 14:10:29 +01:00
sdei.c arm64: sdei: Mark sdei stack helper functions as static 2018-07-31 12:08:22 +01:00
setup.c arm64: kaslr: print PHYS_OFFSET in dump_kernel_offset() 2018-12-14 09:33:49 +00:00
signal.c arm64: use {COMPAT,}SYSCALL_DEFINE0 for sigreturn 2018-07-12 14:49:48 +01:00
signal32.c arm64: use {COMPAT,}SYSCALL_DEFINE0 for sigreturn 2018-07-12 14:49:48 +01:00
sleep.S arm64/mm: Pass ttbr1 as a parameter to __enable_mmu() 2018-09-25 15:10:54 +01:00
smccc-call.S arm64: smccc: use asm EXPORT_SYMBOL() 2018-12-10 11:50:11 +00:00
smp.c arm64: smp: Handle errors reported by the firmware 2018-12-10 18:42:18 +00:00
smp_spin_table.c arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
ssbd.c arm64: ssbd: Add support for PSTATE.SSBS rather than trapping to EL3 2018-09-14 17:46:19 +01:00
stacktrace.c arm64: Add stack information to on_accessible_stack 2018-07-26 11:36:07 +01:00
suspend.c arm64: mm: Support Common Not Private translations 2018-09-18 12:02:27 +01:00
sys.c arm64: implement syscall wrappers 2018-07-12 14:49:48 +01:00
sys32.c arm64: implement syscall wrappers 2018-07-12 14:49:48 +01:00
sys_compat.c arm64: compat: Avoid sending SIGILL for unallocated syscall numbers 2019-01-04 14:18:01 +00:00
syscall.c arm64: svc: Ensure hardirq tracing is updated before return 2018-07-30 17:43:39 +01:00
time.c arm64: fix unwind_frame() for filtered out fn for function graph tracing 2018-02-23 13:46:38 +00:00
topology.c arm64: topology: re-introduce numa mask check for scheduler MC selection 2018-07-06 13:18:18 +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 Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-10-24 11:22:39 +01:00
vdso.c arm64/vdso: Support mremap() for vDSO 2017-08-09 12:16:28 +01:00
vmlinux.lds.S arm64: relocatable: fix inconsistencies in linker script and options 2018-12-04 12:48:25 +00:00