metag/ptrace: Reject partial NT_METAG_RPIPE writes

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commit 7195ee3120 upstream.

It's not clear what behaviour is sensible when doing partial write of
NT_METAG_RPIPE, so just don't bother.

This patch assumes that userspace will never rely on a partial SETREGSET
in this case, since it's not clear what should happen anyway.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dave Martin 2017-03-27 15:10:57 +01:00 • committed by Greg Kroah-Hartman

parent 2d6532ceb4

commit 21c95eca62

1 changed files with 2 additions and 0 deletions

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arch/metag/kernel/ptrace.c

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