tree 9ea98a4cfb2cbc42bf60383253fc11eb2a2a6e88
parent 42780d8db3e11038b484376aa3134b3c876b8523
author dcashman <dcashman@google.com> 1456349482 -0800
committer Kees Cook <keescook@google.com> 1458858349 -0700

BACKPORT: FROMLIST: mm: ASLR: use get_random_long()

(cherry picked from commit https://lkml.org/lkml/2016/2/4/833)

Replace calls to get_random_int() followed by a cast to (unsigned long)
with calls to get_random_long().  Also address shifting bug which, in case
of x86 removed entropy mask for mmap_rnd_bits values > 31 bits.

Signed-off-by: Daniel Cashman <dcashman@android.com>
Signed-off-by: Daniel Cashman <dcashman@google.com>

Bug: 27796957
Patchset: ASLR sysctl

Change-Id: Ia66447c8e07db36b76789f6a61ea3d14a14707df
Signed-off-by: Kees Cook <keescook@google.com>