netdev - [PATCH v2 net-next 1/2] mac802154: properly free incoming skbs on decryption failure

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Message-Id: <1402416671-30305-2-git-send-email-phoebe.buckheister@itwm.fraunhofer.de>
Date:	Tue, 10 Jun 2014 18:11:10 +0200
From:	Phoebe Buckheister <phoebe.buckheister@...m.fraunhofer.de>
To:	netdev@...r.kernel.org
Cc:	linux-zigbee-devel@...ts.sourceforge.net, davem@...emloft.net,
	Phoebe Buckheister <phoebe.buckheister@...m.fraunhofer.de>
Subject: [PATCH v2 net-next 1/2] mac802154: properly free incoming skbs on decryption failure

mac802154 RX did not free skbs on decryption failure, assuming that the
caller would when the local rx handler returned _DROP. This was false.

Signed-off-by: Phoebe Buckheister <phoebe.buckheister@...m.fraunhofer.de>
---
 net/mac802154/wpan.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index 23bc91c..c8cfd54 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -472,6 +472,7 @@ mac802154_subif_frame(struct mac802154_sub_if_data *sdata, struct sk_buff *skb,
 	rc = mac802154_llsec_decrypt(&sdata->sec, skb);
 	if (rc) {
 		pr_debug("decryption failed: %i\n", rc);
+		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
 
-- 
1.7.9.5

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