From b081c1dd2ec64c4f3cc18723ccb7aa1601985bb0 Mon Sep 17 00:00:00 2001 From: Olivier Matz Date: Mon, 11 Sep 2017 16:57:22 +0200 Subject: [PATCH] net: fix inner L2 length in packet type parser The inner L2 length returned by rte_net_get_ptype() is not properly initialized. If the caller does not zero the header lengths structure, the inner_l2 field will be undefined. Fix it by initializing inner_l2 to 0 when parsing a inner layer. Fixes: 2c15c5377da2 ("net: support NVGRE in software packet type parser") Cc: stable@dpdk.org Signed-off-by: Olivier Matz --- lib/librte_net/rte_net.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/librte_net/rte_net.c b/lib/librte_net/rte_net.c index a8c7aff9cd..a3ca040327 100644 --- a/lib/librte_net/rte_net.c +++ b/lib/librte_net/rte_net.c @@ -396,6 +396,7 @@ uint32_t rte_net_get_ptype(const struct rte_mbuf *m, if ((layers & RTE_PTYPE_INNER_L2_MASK) == 0) return pkt_type; + hdr_lens->inner_l2_len = 0; if (proto == rte_cpu_to_be_16(ETHER_TYPE_TEB)) { eh = rte_pktmbuf_read(m, off, sizeof(*eh), &eh_copy); if (unlikely(eh == NULL)) -- 2.20.1