net, rds: convert rds_incoming.i_refcount from atomic_t to refcount_t
authorReshetova, Elena <elena.reshetova@intel.com>
Tue, 4 Jul 2017 12:53:16 +0000 (15:53 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 4 Jul 2017 21:35:17 +0000 (22:35 +0100)
commitb7f0292094cbe31f82f2cd9623c8356cc7cf9566
treef05fcb814743c31912391cd559213e89fe88e51a
parent50d61ff789d728a9b6624582ce28441dc0bf5b42
net, rds: convert rds_incoming.i_refcount 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>
net/rds/rds.h
net/rds/recv.c