arm64: use the correct function type for __arm64_sys_ni_syscall

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Calling sys_ni_syscall through a syscall_fn_t pointer trips indirect
call Control-Flow Integrity checking due to a function type
mismatch. Use SYSCALL_DEFINE0 for __arm64_sys_ni_syscall instead and
remove the now unnecessary casts.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Sami Tolvanen 2019-05-24 15:11:18 -07:00 • committed by Will Deacon

parent 0e358bd7b7

commit 1e29ab3186

2 changed files with 11 additions and 10 deletions

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14

arch/arm64/kernel/sys.c

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7

arch/arm64/kernel/sys32.c

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