linux-kernel - [PATCH v2 0/3] fix function type mismatches in syscall wrappers

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Date:   Fri,  3 May 2019 12:12:22 -0700
From:   Sami Tolvanen <samitolvanen@...gle.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>
Cc:     Kees Cook <keescook@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH v2 0/3] fix function type mismatches in syscall wrappers

These patches fix type mismatches in arm64 syscall wrapper
definitions, which trip indirect call checks with Control-Flow
Integrity.

Changes in v2:
- more informative commit message for the syscall_fn_t change
- added a patch for fixing sys_ni_syscall

Sami Tolvanen (3):
  arm64: fix syscall_fn_t type
  arm64: use the correct function type in SYSCALL_DEFINE0
  arm64: use the correct function type for __arm64_sys_ni_syscall

 arch/arm64/include/asm/syscall.h         |  2 +-
 arch/arm64/include/asm/syscall_wrapper.h | 18 +++++++++---------
 arch/arm64/kernel/sys.c                  | 14 +++++++++-----
 arch/arm64/kernel/sys32.c                | 12 ++++++++----
 4 files changed, 27 insertions(+), 19 deletions(-)

-- 
2.21.0.1020.gf2820cf01a-goog