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authorReshetova, Elena <elena.reshetova@intel.com>2017-07-04 15:53:03 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-04 22:35:16 +0100
commit937149125448290c5d60da2816556409287750ea (patch)
tree690fad95131beb68ac8b3561e4485ae09f42487f /net/atm/mpoa_caches.h
parent788936641ac8bc92c531f09b79bf44775fac1350 (diff)
downloadlinux-stericsson-937149125448290c5d60da2816556409287750ea.tar.gz
net, atm: convert in_cache_entry.use 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/atm/mpoa_caches.h')
-rw-r--r--net/atm/mpoa_caches.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/atm/mpoa_caches.h b/net/atm/mpoa_caches.h
index 8e5f78cf0be1..38a4e7e67c0b 100644
--- a/net/atm/mpoa_caches.h
+++ b/net/atm/mpoa_caches.h
@@ -6,6 +6,7 @@
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/atmmpc.h>
+#include <linux/refcount.h>
struct mpoa_client;
@@ -25,7 +26,7 @@ typedef struct in_cache_entry {
struct atm_vcc *shortcut;
uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
struct in_ctrl_info ctrl_info;
- atomic_t use;
+ refcount_t use;
} in_cache_entry;
struct in_cache_ops{