net: convert fib_rule.refcnt from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Fri, 30 Jun 2017 10:08:06 +0000 (13:08 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 1 Jul 2017 14:39:09 +0000 (07:39 -0700)
commit717d1e993ad8d24a711775d8f2afbcdc76a520a1
tree09a1b09f27893fcf37f46f04e197fa4621a2345e
parent8c9814b97002f61846ebf3048e8df5aae52f7828
net: convert fib_rule.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/fib_rules.h
net/core/fib_rules.c