ffe5a2153ae3f294642af2929cba3cbb19725e95 - kernel/common

commit	ffe5a2153ae3f294642af2929cba3cbb19725e95	[log] [tgz]
author	dcashman <dcashman@google.com>	Wed Feb 24 13:31:22 2016 -0800
committer	dcashman <dcashman@google.com>	Tue Mar 15 13:39:22 2016 -0700
tree	c882314c8a0c09b0520831360b4a2b952be3c2ba
parent	48102c8bc191cea69cff8abe20b3f8325f51f776 [diff]

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.

Bug: 26963541
Signed-off-by: Daniel Cashman <dcashman@android.com>
Signed-off-by: Daniel Cashman <dcashman@google.com>
Change-Id: Iac34b63294ec120edcbf8760186667a84a5cf556

arch/arm/mm/mmap.c[diff]
arch/mips/mm/mmap.c[diff]
arch/powerpc/kernel/process.c[diff]
arch/powerpc/mm/mmap_64.c[diff]
arch/sparc/kernel/sys_sparc_64.c[diff]
arch/x86/mm/mmap.c[diff]

6 files changed

tree: c882314c8a0c09b0520831360b4a2b952be3c2ba