arm: mm: restrict kernel memory permissions if CONFIG_STRICT_MEMORY_RWX set
If CONFIG_STRICT_MEMORY_RWX is set, make kernel text RX,
kernel data/stack RW and rodata RO so that writing
on kernel text, executing kernel data or stack, or
writing on or executing read-only data is prohibited.
Change-Id: Ib2242c20dabddb63ef3f5655d5794fe418cb6287
Signed-off-by:
Larry Bassel <lbassel@codeaurora.org>
(cherry picked from commit 5a5305e90d4204fdf0586fbbd9a19b92181e74ea)
Conflicts:
arch/arm/mm/mmu.c
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