diff options
| author | Reshetova, Elena <elena.reshetova@intel.com> | 2017-07-04 15:53:05 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-04 22:35:16 +0100 |
| commit | 2512775985969a3dadb09670701f0c16499ee784 (patch) | |
| tree | f4da992f7040901e2ce7d7ea26e5e32b94dac686 /net/bridge/br_private.h | |
| parent | e00bdbefab731638c0764cf1b9b7398bfbf2bd99 (diff) | |
net, bridge: convert net_bridge_vlan.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>
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index c18682f804a0..fd9ee73e0a6d 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -21,6 +21,7 @@ #include <net/ip6_fib.h> #include <linux/if_vlan.h> #include <linux/rhashtable.h> +#include <linux/refcount.h> #define BR_HASH_BITS 8 #define BR_HASH_SIZE (1 << BR_HASH_BITS) @@ -127,7 +128,7 @@ struct net_bridge_vlan { struct net_bridge_port *port; }; union { - atomic_t refcnt; + refcount_t refcnt; struct net_bridge_vlan *brvlan; }; |