From: Radu Caragea <sinaelgl@gmail.com>
Date: Tue, 13 Aug 2013 23:00:59 +0000 (-0700)
Subject: x86 get_unmapped_area(): use proper mmap base for bottom-up direction
X-Git-Tag: v3.11-rc6~13^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=df54d6fa54275ce59660453e29d1228c2b45a826;p=pandora-kernel.git

x86 get_unmapped_area(): use proper mmap base for bottom-up direction

When the stack is set to unlimited, the bottomup direction is used for
mmap-ings but the mmap_base is not used and thus effectively renders
ASLR for mmapings along with PIE useless.

Cc: Michel Lespinasse <walken@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Sendroiu <molecula2788@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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