[PATCH 0/4] x86: fix syscall function type mismatches

[Sami Tolvanen]

This patch set changes x64 and ia32 syscall wrappers and related
functions to use function types that match sys_call_ptr_t. This fixes
indirect call mismatches with Control-Flow Integrity (CFI) checking.

Sami Tolvanen (4):
  x86: use the correct function type in SYSCALL_DEFINE0
  x86: use the correct function type for sys32_(rt_)sigreturn
  x86: use the correct function type for sys_ni_syscall
  x86: fix function types in COND_SYSCALL

 arch/x86/entry/syscall_32.c            | 13 ++++++--
 arch/x86/entry/syscall_64.c            | 12 +++++--
 arch/x86/entry/syscalls/syscall_32.tbl |  4 +--
 arch/x86/ia32/ia32_signal.c            |  4 +--
 arch/x86/include/asm/syscall_wrapper.h | 44 ++++++++++++++++----------
 5 files changed, 51 insertions(+), 26 deletions(-)

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2.23.0.237.gc6a4ce50a0-goog