X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_net%2Frte_ether.h;h=060b63fc9bff9e441eb25ce059ed4c2a6d757422;hb=9298fa5cacb4f9f38261094bb13ca4eac4220c81;hp=42f2c3288ca157a2f3819fe7688c4372837b24b1;hpb=a6f67a3b64f558b4a376e683ad9d8d7e7e7bbbf9;p=dpdk.git

diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
index 42f2c3288c..060b63fc9b 100644
--- a/lib/librte_net/rte_ether.h
+++ b/lib/librte_net/rte_ether.h
@@ -353,6 +353,10 @@ static inline int rte_vlan_insert(struct rte_mbuf **m)
 	if (!RTE_MBUF_DIRECT(*m) || rte_mbuf_refcnt_read(*m) > 1)
 		return -EINVAL;
 
+	/* Can't insert header if the first segment is too short */
+	if (rte_pktmbuf_data_len(*m) < 2 * RTE_ETHER_ADDR_LEN)
+		return -EINVAL;
+
 	oh = rte_pktmbuf_mtod(*m, struct rte_ether_hdr *);
 	nh = (struct rte_ether_hdr *)
 		rte_pktmbuf_prepend(*m, sizeof(struct rte_vlan_hdr));