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sparc/ptrace: Preserve previous registers for short regset write
authorDave Martin <Dave.Martin@arm.com>
Mon, 27 Mar 2017 14:10:59 +0000 (15:10 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 29 Mar 2017 15:54:17 +0000 (08:54 -0700)
commit0817f1ad6e161e2bc288c06f4c15dd916cd0b5b6
tree5079b224816aa16b627eaf853da9403ad4747da8tree | snapshot
parent52276fe9ee41cddb416b7b91a9aa24303120bf58commit | diff
sparc/ptrace: Preserve previous registers for short regset write

Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
to fill all the registers, the thread's old registers are preserved.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/sparc/kernel/ptrace_64.c diff | blob | history
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