ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESS
authorRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 16 May 2012 14:19:20 +0000 (15:19 +0100)
committer黄涛 <huangtao@rock-chips.com>
Tue, 29 May 2012 02:18:10 +0000 (10:18 +0800)
commitc0dab5ce4fc28c2a21edce5fa1edcb2b45eb2064
treef00cb7c744238c3328739a427e63581ad30e8220
parent74cfe8b84a7fb85c7624dc451e12bf0ea7d91692
ARM: prevent VM_GROWSDOWN mmaps extending below FIRST_USER_ADDRESS

commit 9b61a4d1b2064dbd0c9e61754305ac852170509f upstream.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/mm/fault.c