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authorReshetova, Elena <elena.reshetova@intel.com>2017-07-04 09:35:01 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-04 01:29:04 -0700
commitf6a6fede28e3cc3f9e4669a12839b47011330d95 (patch)
tree814a0c638acf4edd6f5ef584e3a71e77f1a0c6e8 /include/net/cipso_ipv4.h
parent87078f26b6644c2ad8226cf29a7e3a6ef6c74ae2 (diff)
net, ipv4: convert cipso_v4_doi.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>
Diffstat (limited to 'include/net/cipso_ipv4.h')
-rw-r--r--include/net/cipso_ipv4.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h
index a34b141f125f..880adb2f2afd 100644
--- a/include/net/cipso_ipv4.h
+++ b/include/net/cipso_ipv4.h
@@ -41,6 +41,7 @@
#include <net/netlabel.h>
#include <net/request_sock.h>
#include <linux/atomic.h>
+#include <linux/refcount.h>
#include <asm/unaligned.h>
/* known doi values */
@@ -85,7 +86,7 @@ struct cipso_v4_doi {
} map;
u8 tags[CIPSO_V4_TAG_MAXCNT];
- atomic_t refcount;
+ refcount_t refcount;
struct list_head list;
struct rcu_head rcu;
};