batman-adv: fix NULL pointer dereferences
Was introduced with 4c8755d69c
("batman-adv: Send multicast packets to nodes with a WANT_ALL flag")
Reported-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Acked-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
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parent
554215c5ca
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af0a171c07
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@ -415,7 +415,7 @@ batadv_mcast_forw_ipv4_node_get(struct batadv_priv *bat_priv)
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hlist_for_each_entry_rcu(tmp_orig_node,
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&bat_priv->mcast.want_all_ipv4_list,
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mcast_want_all_ipv4_node) {
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if (!atomic_inc_not_zero(&orig_node->refcount))
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if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
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continue;
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orig_node = tmp_orig_node;
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@ -442,7 +442,7 @@ batadv_mcast_forw_ipv6_node_get(struct batadv_priv *bat_priv)
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hlist_for_each_entry_rcu(tmp_orig_node,
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&bat_priv->mcast.want_all_ipv6_list,
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mcast_want_all_ipv6_node) {
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if (!atomic_inc_not_zero(&orig_node->refcount))
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if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
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continue;
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orig_node = tmp_orig_node;
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@ -493,7 +493,7 @@ batadv_mcast_forw_unsnoop_node_get(struct batadv_priv *bat_priv)
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hlist_for_each_entry_rcu(tmp_orig_node,
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&bat_priv->mcast.want_all_unsnoopables_list,
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mcast_want_all_unsnoopables_node) {
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if (!atomic_inc_not_zero(&orig_node->refcount))
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if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
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continue;
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orig_node = tmp_orig_node;
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