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Sami Tolvanen ab133a833c syscalls/x86: Use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn 
commit 00198a6eaf upstream.

Use COMPAT_SYSCALL_DEFINE0 to define (rt_)sigreturn() syscalls to
replace sys32_sigreturn() and sys32_rt_sigreturn(). This fixes indirect
call mismatches with Control-Flow Integrity (CFI) checking.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H . Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191008224049.115427-4-samitolvanen@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2020-01-17 19:48:30 +01:00
..
syscalls syscalls/x86: Use COMPAT_SYSCALL_DEFINE0 for IA32 (rt_)sigreturn 2020-01-17 19:48:30 +01:00
vdso Kbuild updates for v5.4 2019-09-20 08:36:47 -07:00
vsyscall Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
calling.h Merge branch master from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2019-07-28 22:22:40 +02:00
common.c x86/syscalls: Split the x32 syscalls into their own table 2019-07-22 10:31:23 +02:00
entry_32.S x86/entry/32: Fix FIXUP_ESPFIX_STACK with user CR3 2019-11-29 10:10:00 +01:00
entry_64.S Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 18:07:08 -07:00
entry_64_compat.S x86/entry/64/compat: Fix stack switching for XEN PV 2019-01-18 00:39:33 +01:00
syscall_32.c syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 2018-04-05 16:59:38 +02:00
syscall_64.c x86/syscalls: Split the x32 syscalls into their own table 2019-07-22 10:31:23 +02:00
thunk_32.S x86: Use CONFIG_PREEMPTION 2019-07-31 19:03:35 +02:00
thunk_64.S x86: Use CONFIG_PREEMPTION 2019-07-31 19:03:35 +02:00