Commit 80762992 authored Apr 15, 2016 by Vinayak Menon Committed by Imran Khan Jul 15, 2016

arm: mmap: remove the redundant check of personality



Fixes the merge "Merge tag 'lsk-v3.18-16.04-android' into 'msm-3.18'".
The above mentioned merge wrongly removed part of a fix that was picked
from upstream (arm: factor out mmap ASLR into mmap_rnd). Ressurect the
fix.

Change-Id: Iee77fbec1d2979ea1fa32c0933fd3a22c34a019c
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Imran Khan <kimran@codeaurora.org>

parent e99d73e0

arch/arm/mm/mmap.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -183,9 +183,8 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
		{
		unsigned long random_factor = 0UL;

		if ((current->flags & PF_RANDOMIZE) &&
		!(current->personality & ADDR_NO_RANDOMIZE))
		random_factor = (get_random_long() & ((1UL << mmap_rnd_bits) - 1)) << PAGE_SHIFT;
		if (current->flags & PF_RANDOMIZE)
		random_factor = arch_mmap_rnd();

		if (mmap_is_legacy()) {
		mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;