net: convert neigh_params.refcnt from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Fri, 30 Jun 2017 10:07:56 +0000 (13:07 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 1 Jul 2017 14:39:07 +0000 (07:39 -0700)
commit6343944bc1050dcec7c959f484ee0fb6928db3be
treeb6e57e12f2b0c36611563fb349ece8f70e895fd5
parent9f23743017d11c103b38d2fa1f64674baeca41cd
net: convert neigh_params.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/neighbour.h
net/core/neighbour.c