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syscalls/x86: Use the correct function type for sys_ni_syscall

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Use the correct function type for sys_ni_syscall() in system
call tables to fix 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/20191008224049.115427-5-samitolvanen@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Sami Tolvanen
2019-10-08 15:40:48 -07:00
committed by Ingo Molnar
parent 00198a6eaf
commit f48f01a92c
3 changed files with 15 additions and 11 deletions
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4
arch/x86/entry/syscalls/syscall_32.tbl
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@@ -124,7 +124,7 @@
110 i386 iopl sys_iopl __ia32_sys_iopl
111 i386 vhangup sys_vhangup __ia32_sys_vhangup
112 i386 idle
113 i386 vm86old sys_vm86old sys_ni_syscall
113 i386 vm86old sys_vm86old __ia32_sys_ni_syscall
114 i386 wait4 sys_wait4 __ia32_compat_sys_wait4
115 i386 swapoff sys_swapoff __ia32_sys_swapoff
116 i386 sysinfo sys_sysinfo __ia32_compat_sys_sysinfo
@@ -177,7 +177,7 @@
163 i386 mremap sys_mremap __ia32_sys_mremap
164 i386 setresuid sys_setresuid16 __ia32_sys_setresuid16
165 i386 getresuid sys_getresuid16 __ia32_sys_getresuid16
166 i386 vm86 sys_vm86 sys_ni_syscall
166 i386 vm86 sys_vm86 __ia32_sys_ni_syscall
167 i386 query_module
168 i386 poll sys_poll __ia32_sys_poll
169 i386 nfsservctl