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mips/ptrace: Preserve previous registers for short regset write
authorDave Martin <Dave.Martin@arm.com>
Mon, 27 Mar 2017 14:10:58 +0000 (15:10 +0100)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 29 Mar 2017 15:54:17 +0000 (08:54 -0700)
commitd614fd58a2834cfe4efa472c33c8f3ce2338b09b
treedeec6900fdc5a75b61feafa6dd82e33af6318f51tree
parent7195ee3120d878259e8d94a5d9f808116f34d5eacommit | diff
mips/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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/mips/kernel/ptrace.c diff | blob | history
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