Yama: do not modify global sysctl table entry
Yama: do not modify global sysctl table entry

When the sysctl table is constified, we won't be able to directly modify
it. Instead, use a table copy that carries any needed changes.

Suggested-by: PaX Team <79082de0c93349f717971d409a005388d1854a7c@freemail.hu>
Signed-off-by: Kees Cook <50cb10d2be062154b17ab4d66a4eab34f1cf1c84@chromium.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs