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authorReshetova, Elena <elena.reshetova@intel.com>2017-07-04 15:53:31 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-04 22:35:19 +0100
commitb6d52ede224836f74dff50666b6a3076a5b8c92d (patch)
treec9e439fb24a3171edd0421ee6f41cd9a974cc4ae /net/ax25
parent39f25d42c04959f0ddb5b14b01b27ea221736509 (diff)
net, ax25: convert ax25_cb.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 'net/ax25')
-rw-r--r--net/ax25/af_ax25.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 0c92ba0cbe0b..f3f9d18891de 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -510,7 +510,7 @@ ax25_cb *ax25_create_cb(void)
if ((ax25 = kzalloc(sizeof(*ax25), GFP_ATOMIC)) == NULL)
return NULL;
- atomic_set(&ax25->refcount, 1);
+ refcount_set(&ax25->refcount, 1);
skb_queue_head_init(&ax25->write_queue);
skb_queue_head_init(&ax25->frag_queue);