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authorReshetova, Elena <elena.reshetova@intel.com>2017-06-30 13:07:57 +0300
committerDavid S. Miller <davem@davemloft.net>2017-07-01 07:39:07 -0700
commit53869cebce4bc53f71a080e7830600d4ae1ab712 (patch)
treec99b8ea34f0b909e5db784b7426e1afcb21aeabf /include/net/netfilter
parentnet: convert neigh_params.refcnt from atomic_t to refcount_t (diff)
downloadlinux-dev-53869cebce4bc53f71a080e7830600d4ae1ab712.tar.xz
linux-dev-53869cebce4bc53f71a080e7830600d4ae1ab712.zip
net: convert nf_bridge_info.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 'include/net/netfilter')
-rw-r--r--include/net/netfilter/br_netfilter.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h
index 0b0c35c37125..925524ede6c8 100644
--- a/include/net/netfilter/br_netfilter.h
+++ b/include/net/netfilter/br_netfilter.h
@@ -8,7 +8,7 @@ static inline struct nf_bridge_info *nf_bridge_alloc(struct sk_buff *skb)
skb->nf_bridge = kzalloc(sizeof(struct nf_bridge_info), GFP_ATOMIC);
if (likely(skb->nf_bridge))
- atomic_set(&(skb->nf_bridge->use), 1);
+ refcount_set(&(skb->nf_bridge->use), 1);
return skb->nf_bridge;
}