net: convert unix_address.refcnt from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Fri, 30 Jun 2017 10:08:05 +0000 (13:08 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 1 Jul 2017 14:39:08 +0000 (07:39 -0700)
commit8c9814b97002f61846ebf3048e8df5aae52f7828
treecc555b6c6c8542b6ef5ffe213ecb76f55c62630c
parent433cea4d9bbb83cc848b80c51bb849a2ceb49379
net: convert unix_address.refcnt from atomic_t to refcount_t

refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/af_unix.h
net/unix/af_unix.c