net, ipx: convert ipx_route.refcnt from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Tue, 4 Jul 2017 12:53:10 +0000 (15:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 4 Jul 2017 21:35:17 +0000 (22:35 +0100)
commit16f73c964956e0f78669f1681191093dd030c9ee
tree69006e3034abb570b6d8edda51ae3523b40f77ed
parentd25189ca8665e3ed493c7bc0607e62c2fcb314ad
net, ipx: convert ipx_route.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/ipx.h
net/ipx/ipx_route.c