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Commit 9345c544 authored by Laura Abbott's avatar Laura Abbott
Browse files

arm64: Don't set executable permissions for pages 



For memory security requirements, we should never have
executable and writable pages at the same time. Change the
page permissions from PAGE_KERNEL_EXEC to just PAGE_KERNEL.

Change-Id: I7af470908bd02eee948a9d8934c90e9e44f06570
Signed-off-by: default avatarLaura Abbott <lauraa@codeaurora.org>
parent dccfa0a3

arch/arm64/mm/mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -315,7 +315,7 @@ static void __init alloc_init_pmd(pud_t *pud, unsigned long addr, 
		prot_pte = __pgprot(PROT_DEVICE_nGnRE);

	} else {

		prot_sect = prot_sect_kernel;

		prot_pte = PAGE_KERNEL_EXEC;

		prot_pte = PAGE_KERNEL;

	}



	/*