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(parent: 44fd1f0) | patch
arm64: force_signal_inject: WARN if called from kernel context
authorWill Deacon <will.deacon@arm.com>
Tue, 14 Aug 2018 15:24:54 +0000 (16:24 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 14 Sep 2018 16:46:24 +0000 (17:46 +0100)
commit63b8eeb1e84b967b8da3d276a14296046ea005bb
tree26d51ae49c742f5e1d83eae8487009f270ac3896tree | snapshot
parent44fd1f086f0a37d49ab8c1586b96de7e0cc9d35bcommit | diff
arm64: force_signal_inject: WARN if called from kernel context

force_signal_inject() is designed to send a fatal signal to userspace,
so WARN if the current pt_regs indicates a kernel context. This can
currently happen for the undefined instruction trap, so patch that up so
we always BUG() if we didn't have a handler.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/kernel/traps.c diff | blob | history
Linux Kernel Source Tree.