From: Sami Tolvanen <samitolvanen@google.com>
To: Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H . Peter Anvin" <hpa@zytor.com>,
Kees Cook <keescook@chromium.org>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
Sami Tolvanen <samitolvanen@google.com>
Subject: [PATCH v2 0/5] x86: fix syscall function type mismatches
Date: Wed, 18 Sep 2019 15:46:03 -0700 [thread overview]
Message-ID: <20190918224608.77973-1-samitolvanen@google.com> (raw)
In-Reply-To: <20190913210018.125266-1-samitolvanen@google.com>
This patch set changes x86 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.
Changes since v1:
- Use SYSCALL_DEFINE0 for __x64_sys_ni_syscall.
- Include Andy's COMPAT_SYSCALL_DEFINE0 patch and use the macro
for (rt_)sigreturn.
Andy Lutomirski (1):
x86/syscalls: Wire up COMPAT_SYSCALL_DEFINE0
Sami Tolvanen (4):
x86: use the correct function type in SYSCALL_DEFINE0
x86: use COMPAT_SYSCALL_DEFINE0 for IA32 (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 | 8 +--
arch/x86/entry/syscall_64.c | 14 +++--
arch/x86/entry/syscalls/syscall_32.tbl | 8 +--
arch/x86/ia32/ia32_signal.c | 5 +-
arch/x86/include/asm/syscall_wrapper.h | 76 ++++++++++++++++++++------
5 files changed, 78 insertions(+), 33 deletions(-)
--
2.23.0.351.gc4317032e6-goog
next prev parent reply other threads:[~2019-09-18 22:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-13 21:00 [PATCH 0/4] x86: fix syscall function type mismatches Sami Tolvanen
2019-09-13 21:00 ` [PATCH 1/4] x86: use the correct function type in SYSCALL_DEFINE0 Sami Tolvanen
2019-09-13 22:33 ` Andy Lutomirski
2019-09-13 21:00 ` [PATCH 2/4] x86: use the correct function type for sys32_(rt_)sigreturn Sami Tolvanen
2019-09-13 22:44 ` Andy Lutomirski
2019-09-13 23:29 ` Sami Tolvanen
2019-09-13 21:00 ` [PATCH 3/4] x86: use the correct function type for sys_ni_syscall Sami Tolvanen
2019-09-13 22:45 ` Andy Lutomirski
2019-09-13 23:26 ` Sami Tolvanen
2019-09-14 0:27 ` Andy Lutomirski
2019-09-16 20:43 ` Will Deacon
2019-09-13 21:00 ` [PATCH 4/4] x86: fix function types in COND_SYSCALL Sami Tolvanen
2019-09-13 22:46 ` Andy Lutomirski
2019-09-13 23:28 ` Sami Tolvanen
2019-09-14 0:28 ` Andy Lutomirski
2019-09-17 22:44 ` Sami Tolvanen
2019-09-18 22:46 ` Sami Tolvanen [this message]
2019-09-18 22:46 ` [PATCH v2 1/5] x86: use the correct function type in SYSCALL_DEFINE0 Sami Tolvanen
2019-09-18 22:46 ` [PATCH v2 2/5] x86/syscalls: Wire up COMPAT_SYSCALL_DEFINE0 Sami Tolvanen
2019-09-18 22:46 ` [PATCH v2 3/5] x86: use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn Sami Tolvanen
2019-09-18 22:46 ` [PATCH v2 4/5] x86: use the correct function type for sys_ni_syscall Sami Tolvanen
2019-09-18 22:46 ` [PATCH v2 5/5] x86: fix function types in COND_SYSCALL Sami Tolvanen
2019-10-08 22:40 ` [RESEND PATCH v2 0/5] x86: fix syscall function type mismatches Sami Tolvanen
2019-10-08 22:40 ` [RESEND PATCH v2 1/5] x86: use the correct function type in SYSCALL_DEFINE0 Sami Tolvanen
2019-10-11 11:22 ` [tip: x86/entry] syscalls/x86: Use " tip-bot2 for Sami Tolvanen
2019-10-08 22:40 ` [RESEND PATCH v2 2/5] x86/syscalls: Wire up COMPAT_SYSCALL_DEFINE0 Sami Tolvanen
2019-10-11 11:22 ` [tip: x86/entry] syscalls/x86: " tip-bot2 for Andy Lutomirski
2019-10-08 22:40 ` [RESEND PATCH v2 3/5] x86: use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn Sami Tolvanen
2019-10-11 11:22 ` [tip: x86/entry] syscalls/x86: Use " tip-bot2 for Sami Tolvanen
2019-10-08 22:40 ` [RESEND PATCH v2 4/5] x86: use the correct function type for sys_ni_syscall Sami Tolvanen
2019-10-11 11:22 ` [tip: x86/entry] syscalls/x86: Use " tip-bot2 for Sami Tolvanen
2019-10-08 22:40 ` [RESEND PATCH v2 5/5] x86: fix function types in COND_SYSCALL Sami Tolvanen
2019-10-11 11:22 ` [tip: x86/entry] syscalls/x86: Fix " tip-bot2 for Sami Tolvanen
2019-10-10 18:17 ` [RESEND PATCH v2 0/5] x86: fix syscall function type mismatches Andy Lutomirski
2019-10-11 10:50 ` Ingo Molnar
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