net/cxgbe: skip parsing match items with no spec

Skip parsing pattern match items that have no spec. This fixes NULL
dereference when accessing their non-existent spec.

Fixes: ee61f5113b17 ("net/cxgbe: parse and validate flows")
Cc: stable@dpdk.org
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>

diff --git a/drivers/net/cxgbe/cxgbe_flow.c b/drivers/net/cxgbe/cxgbe_flow.c
index 4deaff8f2f0fb830931b1187399ed627f55ddd45..7b87bdf583a0fe7fd28b211dd6dd20607a79eae5 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_flow.c
+++ b/drivers/net/cxgbe/cxgbe_flow.c
@@ -732,6 +732,10 @@ cxgbe_rtef_parse_items(struct rte_flow *flow,
                                                "parse items cannot be repeated (except void)");
                        repeat[i->type] = 1;
 
+                       /* No spec found for this pattern item. Skip it */
+                       if (!i->spec)
+                               break;
+
                        /* validate the item */
                        ret = cxgbe_validate_item(i, e);
                        if (ret)